JP6501693B2 - Consolidated hardware - Google Patents

Description

  The present invention relates to a metal connection used for installing various members in a wooden building.

  Traditionally, wooden construction has spread mainly in small buildings such as houses. However, in recent years, various technological developments have progressed, and woodenification of larger buildings such as commercial facilities and public facilities can be realized at a realistic cost. In order to use a member of a large cross section for the skeleton of such a large scale wooden building, various kinds of hardware are indispensable for its installation and connection. In addition to having predetermined strength, various types of hardware may have a function of actively absorbing energy in consideration of the case where an excessive external force acts due to an earthquake or the like.

  The following patent documents are mentioned as an example of earthquake measures of a building. Among them, Patent Document 1 discloses an inexpensive brace damper for wooden buildings. This brace damper is disposed in a shaft assembly composed of columns and beams, and obliquely connects the upper side of one column and the lower side of the other column, but is characterized by incorporating a viscoelastic material at one end thereof And The visco-elastic material is interposed between the long steel material which is the main body of the brace damper and the fixing plate portion fixed to the column, the deformation of the shaft set is suppressed by its viscous resistance, and the vibration is rapidly damped. You can get a damping effect. In addition, it is also disclosed that the strength can be further improved by folding a long steel material into a bellows shape as viewed from the cross section, instead of making it a simple flat plate.

  Next, Patent Document 2 discloses a vibration control structure and a vibration control joint characterized in that the occupied space is small. In this structure, a universal joint is disposed at the center of the boundary of two members to be connected, such as a column and a beam, and a plurality of damping mechanism parts are provided to surround the universal joint, and are connected by the universal joint. The external force can be effectively attenuated by the damping mechanism while allowing displacement between the two members. In addition, the universal joint and the damping mechanism can be arranged without protruding from the side surface of the connected members, which is excellent in convenience. The universal joint and the damping mechanism are disposed between the opposing mounting portions in consideration of mounting with the members.

  In addition, Patent Document 3 discloses a history damper and a wall of a wooden structure. The hysteresis damper is a metal plate in which a "" shaped slit is continuously formed. Elasto-plastic deformation of the hysteresis damper is induced by the slit, and energy during earthquake can be absorbed efficiently. Also disclosed is a technique for incorporating a hysteresis damper on the wall of a wooden structure. In this technology, a panel smaller than the space is arranged in a shaft set consisting of columns and beams, and this panel and the shaft set are connected with a plurality of hysteresis dampers. The gap between the two increases the deformation range of the hysteresis damper and the energy absorption amount.

Japanese Patent Application Laid-Open No. 2002-30828 JP 2007-239267 A JP, 2010-116973, A

  In large-scale wooden buildings, a wooden frame structure may be adopted in which large cross-section members are assembled like a steel frame in order to simplify construction work and secure indoor space. In this structure, there are few reinforcements such as braces, and the rigidity of the hardware for mounting the members becomes extremely important. Therefore, it is difficult to introduce a technology based on flexibility as in Patent Document 2 described above. However, simply increasing the rigidity of the hardware makes it difficult to absorb the energy during an earthquake, which may cause cracks in the members and the like, and may not maintain the strength of the skeleton, and the damage to the room also increases. Therefore, it is preferable that the hardware for mounting the member has high initial rigidity, and can absorb energy smoothly when it receives an excessive external force.

  Even if an earthquake is encountered, if the hardware can absorb the energy, the soundness of the building is maintained and can be used continuously thereafter. However, if plastic deformation occurs in the hardware, the framework also remains distorted, which may require repair or replacement of the hardware, and may temporarily remove the surrounding floor or wall. In that case, since it is also expected that it will enter into a narrow space with an unreasonable posture, sufficient consideration is required about workability.

  The present invention has been developed based on these circumstances, and has high initial rigidity and can smoothly absorb the energy when it receives an excessive external force, and it is also easy to repair after deformation by external force. It is intended to be provided.

  The invention according to claim 1 for solving the above-mentioned problems is a connection metal used to connect various two members such as a column and a horizontal member, a foundation concrete and a column, and the two members to be connected And one body attached to one of the two members, the other body attached to the other one of the two members, and a meter disposed near both ends of the one body and penetrating both sides of the one body Two root pins, a total of two root pins disposed near both ends of the other body and penetrating both sides of the other body, and a freely pivotable link supported by the ends of the individual root pins A total of two driven pins that collectively penetrate the links on the one body side and the links on the other body side, a holding piece supported by the driven pins, and the opposing holding pieces that are opposed to each other And a deformation shaft fixed to the holding piece; The other body is in contact with each other in front, and the back of the front is in contact with a member such as the column or the cross member, and the link is disposed on both sides of the one body and the other body. And each individual link extends from the root pin toward the center of the one body and the other body, and the two links facing each other across the contact surface of the one body and the other body have their tip ends Overlapping and inserting the follower pin into one, the one follower pin passes through a total of four links disposed at each end of the one body and the other body, and on both sides of the follower pin The holding piece is incorporated, and the holding pieces facing each other between the two driven pins are connected by the deformation axis, and the distance between the one body and the other body is changed, whereby the link is displaced and the deformation occurs. A connected hardware characterized by extending and retracting an axis .

  The present invention is a joint metal unit that integrates two members constituting a skeleton of a wooden building, but the use of all members is assumed, so these two members are various, and a concrete example is a column and a horizontal member And foundation concrete and columns, steel frames and columns. Therefore, there are cases where timbers are connected to each other, and sometimes only one is timber. The wood is not limited to solid wood but may be laminated wood. Further, the metal connection according to the present invention is configured centering on two parts, which are called one body and the other body, in a form of being sandwiched in the connection position of the two members.

  One body and the other body are rod-shaped with a long side, but both have almost the same shape, and their extension is in principle equivalent to the long side of the connecting surface. Furthermore, one body and the other body are used in the state which both side surfaces contacted without a level | step difference. This contacting side is referred to as the front for convenience. And the back side which becomes the back side of this front is made to contact a member. Of course, the back of one body is in contact with one of the two parts and the back of the other is in contact with the remaining one of the two parts. In addition, one body and the other body are in contact with the member and firmly integrated with the member by some means.

  The means for integrating one body and the other with the member use various conventional techniques. If the member is foundation concrete, insert an anchor bolt projecting from it into one body and screw a nut. Further, if the member is a wood, a lag screw, a deformed bar or the like is embedded in the connecting surface, and a bolt is inserted from one body or the other body and screwed into these. Alternatively, if the member is a shaped steel, it can be simply integrated with a bolt and a nut. However, in the present invention, it is premised that one body and the other body are in close contact without being separated from the member even when an excessive external force is applied.

  The root pin is disposed in the vicinity of both ends of both the one body and the other body, and penetrates both sides of one body or the other body. Therefore, a total of four root pins are used in one connection metal. The side surface into which the root pin is inserted is a surface orthogonal to the front and back surfaces. Furthermore, since the root pin is responsible for transfer of the load between the two members, it has sufficient necessary strength.

  The link is an elongated strip of metal plate, one end of which is inserted into the root pin. In addition, since a link is arrange | positioned at the both ends of each root pin, a total of eight pieces will be used by one connection metal article. Also, each link can be freely rocked with the root pin as a fulcrum. However, this rocking can be realized by a method in which the link can be rotated relative to the root pin in addition to a method in which the root pin can rotate relative to one body or the other. In addition, take some measures to prevent the link from falling off the root pin.

  The follower pins are disposed across the contact surfaces of the one body and the other body, and the links from the one body side and the tips of the links from the other body side are collectively pierced and aligned in parallel with the root pin. The links into which the follower pins are inserted are all supported by the root pins, but the individual links are arranged to face near the center of one body and the other. Furthermore, the two links facing each other across the contact surface of the one body and the other body have their tips overlapped with each other, and the follower pin is inserted so as to penetrate therethrough. In addition, since a link is arrange | positioned on the both sides | surfaces of one body and the other body, one follower pin will penetrate a total of four links.

  In this way, one body and the other body are connected via the links by skewing a total of four links with one follower pin. Since each link is sufficiently short in comparison with one body or the other body, a group composed of the root pin, the link and the follower pin is collectively disposed at both ends of the one body and the other body. Therefore, two follower pins do not adjoin, but a certain amount of space is secured.

  The deformation shaft is disposed so as to connect the two driven pins, and both ends thereof are fixed to the driven pins. Therefore, as the two follower pins move apart, the deformation axis is stretched, and as the two move closer, the deformation axis is compressed. Therefore, when one body and the other body move apart, the link is displaced, and the distance between the two driven pins is also extended accordingly, and the deformation axis is stretched. In addition, a total of two deformation axes are disposed, one on each side of the one body and the other.

  The holding piece is a component responsible for connecting the driven pin and the deformation shaft. The follower pin extends in a direction passing through both side surfaces of one body and the other body, while the deformation axis extends in the longitudinal direction of the one body and the other body so that both are orthogonal to each other. Therefore, the holding piece is used to connect both, but the holding piece is L-shaped, the driven pin is inserted into one of the surfaces, and the deformation axis is inserted into the other surface. In addition, in order to arrange two holding pieces on each side surface of one body and the other body, a total of four pieces are used in one connection hardware. In addition, the deformation shaft is fixed to the holding piece by pinching of a nut or the like so that the deformation shaft can be replaced without difficulty.

  After assembling the parts described so far, when the opposing holding pieces are pulled using the deformation axis, the two driven pins move closer, and the link is drawn accordingly, and one and the other body Firmly in contact with each other, and the entire metal connection is firmly integrated. Therefore, adjacent two members sandwiching one body and the other body are also firmly connected, and sufficient initial rigidity can be secured. In addition, in consideration of transmission of a shear load, some mesh may be formed on the contact surface of one body and the other body.

  When two members are pulled apart by some external force after connecting the two members via the connection metal, one body and the other body are also pulled apart, but in that case, the link connecting the one body and the other body is displaced, and the deformation axis Is stretched. The stretching of the deformation axis absorbs the impact. Moreover, after that, when the external force changes and one body and the other body come into contact again, the deformation axis is compressed. As described above, according to the present invention, even after the deformation axis is extended, the loosening does not occur, and the basic performance of the connecting metal can be maintained. Further, in the present invention, since the elasto-plastic deformation is concentrated on the deformation axis, at the time of repair, the deformation axis may be removed from the holding piece and replaced.

  In this way, the connecting metal is divided into one and the other body, and one body and the other body are connected via the link or the like, and the opposing link is drawn by the deformation axis, so that one side is normal. The body and the other body adhere tightly. Therefore, the two members to be connected are also firmly integrated, and sufficient initial rigidity can be secured. Furthermore, when an excessive external force acts, the deformation axis is stretched through the link and the like, and energy is absorbed, so that damage to the member and the like can be suppressed. In the elasto-plastic deformation due to the external force, the strength of each part is adjusted so as to be concentrated on the deformation axis.

  As in the invention according to claim 1, the connecting metal which integrates the two members is divided into one and the other body, and the one body and the other body are connected via the link etc. By pulling the link at the deformation axis, the one body and the other body firmly adhere. Therefore, the two members are firmly connected, and sufficient initial rigidity can be secured. In addition, when an excessive external force acts in the direction to separate the two members, the deformation axis is stretched smoothly through the link etc., energy can be absorbed reliably, damage to the members etc is reduced, and damage to the room is also caused. Be suppressed. Moreover, even after the deformation axis is plastically deformed, there is no place where the connecting metal loosens, and the soundness of the connecting portion can be maintained even after receiving an excessive external force.

  In the present invention, the deformation axis is responsible for absorbing energy. Therefore, when an earthquake or the like is encountered and distortion occurs in the frame of the building, it is not necessary to remove the connecting hardware itself, and only the deformation axis may be replaced. The deformation axes are disposed on the side surfaces of one body and the other body, and they appear outside only by removing the wall and the floor, so that the workability is excellent. Further, the deformation axes are disposed on both the left and right sides, and by sequentially exchanging one by one, it is possible to reduce time and effort such as temporary reception of members.

The perspective view which shows the example of the shape of the connection metal article by this invention, and its example of use, in order to unify the pillar extended vertically and the horizontal bridge material extended horizontally in L shape, the side of a pillar and the end face of a horizontal bridge material Insert a metal connection in between. It is a perspective view which shows the detail of the component of the connection metal fitting drawn on FIG. It is a perspective view which shows the process in which the component of FIG. 2 is assembled. It is a perspective view which shows the method of attaching the other body of FIG. 1 to a cross member. In the perspective view which shows the state which installed the cross member of FIG. 1 in the pillar, the connection metal object is inserted | pinched between the side of a post and the end surface of the cross member. It is a perspective view which shows the state in which external force acted on the connection part of FIG. 5, and the horizontal member was pulled away from the pillar. It is a perspective view which shows the state which bending moment acted on the cross member of FIG. At the lower left of the figure, the positional relationship between one body and the other is shown. It is a perspective view which shows the case where the connection metal article by this invention is used for installation of a pillar. It is a perspective view which shows the state which installed the pillar of FIG. 8 in foundation concrete.

  FIG. 1 shows an example of the shape of a metal connection according to the present invention and an example of its use. In FIG. 1, in order to integrate the vertically extending pillars 51 and the horizontally extending horizontal members 61 into an L shape, the connection metal is sandwiched between the side surfaces of the pillars 51 and the end surfaces of the horizontal members 61. Therefore, the pillars 51 and the horizontal members 61 do not come in direct contact with each other. Further, both of the pillars 51 and the horizontal members 61 are made of wood (including a laminated material), and lug screws 41 and 42 are embedded in them in order to attach the connecting hardware.

  The connecting hardware is constructed centering on the rod-like one body 21 and the other body 31. The one body 21 and the other body 31 of FIG. 1 have the same outer shape, and the cross section is based on a rectangle, and the total length is substantially equal to the long side of the end face of the cross member 61 (vertical direction in FIG. 1). Further, the one body 21 and the other body 31 contact both one side surfaces without steps. In addition, this contact surface shall be called a front for convenience. And the back side of this front shall be called the back. The back surface of the one body 21 contacts the side surface of the pillar 51, and the back surface of the other body 31 contacts the end surface of the cross member 61.

  The root pins 23 and 33 are metal rods penetrating the side surfaces in the vicinity of the upper and lower ends of the first body 21 and the second body 31, and a total of four connection pins are used as depicted in FIG. The root pins 23 and 33 are aligned in parallel with the front and back surfaces of the one body 21 and the other body 31 and do not come in contact with the pillars 51 and the horizontal members 61. Furthermore, the root pins 23 and 33 have an extension equivalent to the lateral width of the column 51 and the horizontal mounting member 61, and prevent the members from protruding.

  The links 25 and 35 are strip-like metal plates and attached near both ends of the individual root pins 23 and 33. Therefore, a total of eight links 25 and 35 are used with one connecting hardware. And since the total length of each link 25 and 35 is sufficiently shorter than the total length of one body 21 and the other body 31, a total of four links 25 and 35 are disposed at the lower part of the connecting hardware, A total of four links 25 and 35 are arranged at the top. Naturally, the links 25 and 35 should not come off from the root pins 23 and 33, and some measures need to be taken, but in FIG. 1 the clip 19 is attached to the end of the root pins 23 and 33. We regulate movement of 35.

  The driven pin 13 passes through the contact surface of the one body 21 and the other body 31 and protrudes on both sides, and pierces the tips of the links 25 and 35. As shown in FIG. 1, the links 25 and 35 sandwich the contact surface of the one body 21 and the other body 31 and arrange the two sheets so as to face each other, but the tips of the two opposing links 25 and 35 The driven pins 13 are inserted so as to stack and scoop them. In addition, a total of two driven pins 13 are vertically disposed, and a pair of links 25 and 35 are pierced at the left and right ends of each driven pin 13.

  When the one body 21 and the other body 31 are in contact with each other, the pair of links 25 and 35 skewed by the driven pin 13 extend closer to the center of the one body 21 and the other body 31 and form a "く" shape. Be placed. Therefore, the driven pin 13 is positioned closer to the center than the root pins 23 and 33. When the one body 21 and the other body 31 are separated, the pair of links 25 and 35 are interlocked and opened, and the distance between the upper and lower driven pins 13 also increases accordingly.

  The holding piece 12 is an L-shaped metal part supported by the driven pin 13, and the driven pin 13 is inserted in the vicinity of the tip of one surface thereof. Further, as shown in FIG. 1, the remaining one side is disposed to face up and down. The holding piece 12 is rotatable with respect to the driven pin 13 and is disposed on the back side of the pair of links 25 and 35 in order to suppress the outward projection. In addition, in order to arrange the holding pieces 12 on both sides, a total of four connecting pieces are used in one piece.

  The deformation shaft 11 is a metal rod for pulling up the holding pieces 12 opposed to each other in the vertical direction, and the nuts 14 are used to fix the both ends thereof to the holding pieces 12. At that time, when the nut 14 is tightened and the opposing holding pieces 12 are drawn, the tip end portions of the links 25 and 35 are also drawn, and the one body 21 and the other body 31 tightly contact. Further, when the one body 21 and the other body 31 are pulled apart by some external force, the distance between the holding pieces 12 facing each other via the links 25 and 35 is expanded, and the deformation axis 11 is stretched.

  In order to attach the body 21 to the column 51, a lag screw 41 is embedded in the side surface of the column 51. The lag screw 41 has a cylindrical shape in which helical ridges 43 are formed on the side circumferential surface, and on one end surface thereof a head 44 for applying a tool is formed, and both ends are pierced at the center A bore 45 is formed. In addition, in order to embed the lag screw 41 on the side surface of the column 51, the pilot hole 54 penetrating the both side surfaces is processed, and the convex thread 43 bites into the inner peripheral surface of the pilot hole 54 to make the lag screw 41 strong. It is held. Then, the bolt 56 is inserted into the hole 45 appearing on the back side of the column 51, and the tip of the bolt 56 is screwed to the back surface of the one body 21, whereby the one body 21 is attached to the column 51. In addition, two sets of lag screws 41 and bolts 56 are disposed vertically.

  Similarly, in order to attach the other body 31 to the cross member 61, a lag screw 42 is embedded in the end face of the cross member 61. The lag screw 42 has a female screw 46 formed at the center of the head 44 so that the bolt 66 can be screwed. In addition, in the end face of the cross member 61, in order to embed the lag screw 42, a bottomed lower hole 64 is processed. In addition, when attaching the connecting hardware to the cross member 61, the bolt 66 is inserted from the front of the other body 31. In addition, on the side of the cross member 61, two sets of lug screws 42 and bolts 66 are disposed vertically.

  FIG. 2 shows details of the components of the metal connection depicted in FIG. On the other hand, although the body 21 is an elongated rod-like member, the upper and lower sides of the front face are formed with flanks 27 extending obliquely, and at one end (closer to the center) of the flank 27 a pin groove 28 for passing the follower pin 13 Is formed. In addition, one body 21 and the other body 31 have the same outer shape, but one of them is inverted and disposed so that the front faces (surfaces on which flanks 27 and 37 and pin grooves 28 and 38 are formed) face each other. Furthermore, in order to insert the root pins 23 and 33, both of the one body 21 and the other body 31 are formed with pin holes 24 and 34 penetrating both side surfaces. The pin holes 24 and 34 have an inner diameter into which the root pins 23 and 33 can be inserted without difficulty.

  In addition, one body 21 is attached to the column 51 with the bolt 56 depicted in FIG. 1 above, and screw holes 29 are provided at the upper and lower two places on the back of the one body 21 so that the tip of this bolt 56 can be screwed. It is formed. The other body 31 is attached to the cross member 61 with the bolt 66 depicted in FIG. 1 so that the bolt 66 can be inserted into the other body 31 at two upper and lower bolt holes 36 penetrating the front and back thereof. It is formed. In order to accommodate the head of the bolt 66, the bolt hole 36 has a large inner diameter on the front side.

  The links 25 and 35 are disposed on the left and right sides of the one body 21 and the other body 31. Further, the individual links 25 and 35 are disposed so as to face the center of the contact surface of the one body 21 and the other body 31 with the root pins 23 and 33 as fulcrums, and further, the contact surface of the one body 21 and the other body 31 The distal end portions of the two links 25 and 35 facing each other are overlapped, and the driven pin 13 is inserted into the end portions to integrate them. The links 25 and 35 can freely rotate with respect to any of the root pins 23 and 33 and the driven pin 13. In addition, in order to prevent the links 25 and 35 from falling off, clips 19 are attached to the end portions of the root pins 23 and 33 and the driven pin 13. The clip 19 has an “R” shape, and one end of the clip 19 is inserted into a thin hole formed in the root pins 23 and 33 and the driven pin 13.

  The holding piece 12 is L-shaped, and the driven pin 13 is inserted into one surface thereof, and the deformation shaft 11 is attached using a notch 17 formed in the remaining surface. The holding pieces 12 are attached to the left and right sides of one driven pin 13, but the surfaces of the holding pieces 12 having the notches 17 are directed toward the center of the one body 21 or the other body 31. Further, since the holding piece 12 is disposed inside the links 25 and 35, it does not come off the driven pin 13. In addition, the holding piece 12 is also freely rotatable with respect to the driven pin 13.

  The deformation shaft 11 connects the holding pieces 12 facing each other in the vertical direction, and an external thread 16 is formed so that the nut 14 can be screwed. In addition, since the nut 14 is disposed so as to sandwich the front and back of the holding piece 12, the deformation shaft 11 does not fall off from the holding piece 12 in any state. The deformation shaft 11 is stretched when the one body 21 and the other body 31 are separated, and exhibits a function as a shock absorbing material. Therefore, as a material of the deformation shaft 11, a material having flexibility, such as a steel bar for building structure (SNR), is used. Rolled steel bars for construction use are excellent in toughness and easy to absorb impact load, and are susceptible to plastic deformation without breakage against excessive load.

  FIG. 3 shows the process of assembling the components of FIG. As illustrated in the upper part of FIG. 3, the pair of upper and lower holding pieces 12 are integrated via the deformation shaft 11 and the nut 14 and disposed on the left and right sides of the one body 21 and the other body 31. Further, in the links 25 and 35, a pair of two sheets stacked in the shape of a "" is used, and these are arranged at four places in the upper, lower, left, and right directions. Then, the base pins 23 and 33 and the follower pins 13 are inserted so as to penetrate the links 25 and 35 and the holding piece 12 and finally the clip 19 is attached to prevent the links 25 and 35 from falling off.

  When the front surfaces of the one body 21 and the other body 31 are brought into contact with each other without any difference in level, a gap in the form of a crown is formed by both pin grooves 28 and 38. This gap has a role of passing the driven pin 13, but as depicted in the lower left of FIG. 3, the pin grooves 28 and 38 have the minimum dimensions necessary to bring the inner surface into contact with the driven pin 13. Thereby, when assembling a connection metal, a shear load can be transmitted between one body 21 and the other body 31.

  When all the elements are assembled, as shown in the lower right of FIG. 3, the links 25, 35, etc. are arranged on the left and right sides, and the connection hardware is completed. Here, when the nut 14 screwed to the deformation shaft 11 is tightened and the distance between the upper and lower holding pieces 12 is narrowed, the one body 21 and the other body 31 are firmly in close contact, and the initial rigidity of the metal connection is improved. However, if the nut 14 is tightened too much, the driven pin 13 may spread the pin grooves 28 and 38 and separate the one body 21 and the other body 31 from each other. Therefore, when designing the connecting hardware, when the axial force acting on the deformation shaft 11 becomes an appropriate value, care must be taken so that the upper and lower intervals of both the driven pin 13 and the pin grooves 28 and 38 are aligned.

  FIG. 4 shows a method of attaching the other body 31 of FIG. 1 to the cross member 61. The other body 31 is attached to the cross member 61 via a lag screw 42 and a bolt 66 as illustrated in FIG. 4, but the bolt 66 is inserted from the front of the other body 31. Therefore, the other body 31 is independently attached to the cross member 61 prior to the assembly of the connecting hardware. The head of the bolt 66 is accommodated in the large diameter portion of the bolt hole 36 and does not protrude from the front of the other body 31.

  FIG. 5 shows a state in which the cross member 61 of FIG. 1 is installed on the column 51, and a connecting metal is sandwiched between the side surface of the post 51 and the end face of the cross member 61. Therefore, the pillars 51 and the horizontal members 61 do not come in direct contact with each other. Further, the deformation shaft 11 is exposed on both sides without being covered at all, and the deformation shaft 11 can be easily replaced by loosening the nut 14. The dimensions of the root pins 23 and 33, the driven pin 13 and the holding piece 12 are adjusted so as not to protrude from the side surfaces of the pillars 51 and the horizontal members 61, and the attachment of the wall material or the like is not hindered.

  In FIG. 5, the upper and lower holding pieces 12 are attracted by the deformation shaft 11, and the one body 21 and the other body 31 are in close contact. Therefore, the pillars 51 and the horizontal members 61 are also connected without loosening. One end face of the lag screws 41 and 42 embedded in the column 51 and the horizontal member 61 is in contact with the one body 21 or the other body 31 so that the connecting metal sinks in the column 51 or the horizontal member 61 There is no loosening at this point. In addition, the follower pin 13 is fitted in the pin grooves 28 and 38 as depicted in the lower left of FIG. 3 above, and a shear load via the follower pin 13 (in FIG. 5, gravity acting on the cross member 61) Is transmitted, and sufficient rigidity is secured against the vertical load.

  FIG. 6 shows a state in which an external force acts on the connecting portion of FIG. 5 and the cross member 61 is pulled away from the column 51. When an external force that separates the column 51 and the horizontal member 61 acts, the one body 21 remains on the side surface of the column 51 and the other member 31 remains on the end face of the horizontal member 61. A gap is created in the pair of links 25 and 35 connecting one body 21 and the other body 31 so as to be opened. Along with this, the driven pin 13 and the holding piece 12 are also displaced, and the deformation shaft 11 is stretched up and down to reduce the impact. When the external force is relatively weak and plastic deformation does not occur in the deformation axis 11, the first body 21 and the other body 31 come in contact again by the elasticity, and return to the original state.

  However, when an excessive external force is applied, plastic deformation occurs on the deformation axis 11, but in that case energy is absorbed, so that damage to members and the like can be reduced. Further, even after plastic deformation occurs, when the wall material or the like is removed, the deformation shaft 11 can be replaced without difficulty, and the post 51 and the horizontal member 61 can be returned to the original state. In addition, replacement | exchange of the deformation | transformation axis | shaft 11 can be maintained without interrupting the connection state of the one body 21 and the other body 31 one by one in order, and it can work smoothly. Besides, the root pins 23 and 33, the driven pin 13 and the holding piece 12 have sufficient strength so that the elastic-plastic deformation is concentrated on the deformation axis 11.

  FIG. 7 shows a state in which a bending moment acts on the cross member 61 of FIG. In the lower left of FIG. 7, the positional relationship between the one body 21 and the other body 31 at that time is depicted. When a bending moment acts on the cross member 61, the upper and lower links 25 and 35 are not uniformly displaced, but only one of them is displaced. In FIG. 7, a bending moment is applied to lower the cross member 61 downward to the left, and only the upper links 25 and 35 are largely displaced. Along with this, the distance between the upper and lower holding pieces 12 widens, the deformation axis 11 is stretched, and energy is absorbed.

  In the one body 21 and the other body 31, flank surfaces 27 and 37 are provided adjacent to the pin grooves 28 and 38 as depicted in the lower left of FIG. 7. Therefore, one body 21 and the other body 31 can rotate with either the upper or lower follower pin 13 as the origin, and when a bending moment acts between the two connected members, the one body 21 or the other body 31 is smoothly displaced. , Deformation axis 11 is stretched. Further, in the state of FIG. 7, the load in the vertical direction can be reliably transmitted while the lower driven pin 13 is fitted into the pin grooves 28 and 38.

  FIG. 8 shows the case where the connecting hardware according to the present invention is used for the installation of the column 51. The connection hardware according to the present invention can be used anywhere, and as in this figure, the pillars 51 can be installed on the foundation concrete 71. Also in FIG. 8, the configuration of the movable portion from the root pins 23 and 33 to the deformation axis 11 is common to FIG. 1 and the like. However, everything is placed sideways. Moreover, the one body 21 and the other body 31 are the shapes which considered the attachment with the foundation concrete 71 and the pillar 51, and all provided the level | step difference 22 and 32 in center vicinity.

  One body 21 is fixed using an anchor bolt 72 protruding from the foundation concrete 71. In order to pass the anchor bolt 72, a bolt hole 26 is formed in the step 22 of the one body 21. Further, the washer 75 inserted into the anchor bolt 72 and the nut 76 screwed with the anchor bolt 72 are accommodated in the step 22. On the other hand, the other body 31 is attached to the pillar 51 with the bolt 56. Therefore, a lag screw 42 is embedded in the lower surface of the column 51 in advance, and a bolt 56 is screwed to the female screw 46. Then, in order to insert the bolt 56, a bolt hole 36 is formed in the other body 31, and the head of the bolt 56 is accommodated in the step 32.

  FIG. 9 shows a state in which the column 51 of FIG. The one body 21 and the other body 31 are sandwiched between the foundation concrete 71 and the column 51, and the downward load acting on the column 51 is transmitted to the foundation concrete 71 via the connecting hardware. Further, the driven pin 13 is sandwiched between the contact surfaces of the one body 21 and the other body 31 and has sufficient strength against horizontal load. In addition, when a bending moment acts on the column 51, either the left or right link 25, 35 is displaced, the deformation axis 11 is stretched, and energy is absorbed.

  In the present invention, the method of attaching the one body 21 and the other body 31 to various members is not limited to those illustrated in the respective drawings so far, and can be freely selected. For example, it is possible to extend the distance from the front to the back of the other body 31, insert the back side into the slit formed in the member, drive the drift pin so as to penetrate the member and the other body 31, and integrate both. Further, it is possible to form a leg-like projection in the vicinity of the back surface of the one body 21 and the other body 31, insert nails from there toward the members, and attach the one body 21 or the other body 31 thereto. Thus, the shapes of the one body 21 and the other body 31 may be freely determined according to the use place.

11 Deformed shaft 12 Holding piece 13 Driven pin 14 Nut 16 Male screw 17 Notch 19 Clip 21 One body 22 Step difference 23 Root pin 24 Pin hole 25 Link 26 Bolt hole 27 Relief surface 28 Pin groove 29 Screw hole 31 Other body 32 Step 33 Root Pin 34 Pin hole 35 Link 36 Bolt hole 37 Relief face 38 Pin groove 41 Lug screw 42 Lug screw 43 Convex ridge 45 Head hole 45 Center hole 46 Female thread 51 Column 54 Bottom hole 56 Bolt 61 Cross member 64 Bottom hole 66 Bolt 71 Foundation Concrete 72 Anchor bolt 75 Washer 76 Nut

Claims (1)

A connecting metal used to connect two kinds of members such as pillars (51) and horizontal members (61), foundation concrete (71) and pillars (51),
One body (21) disposed at the boundary of the two members to be connected and attached to one of the two members;
The other body (31) attached to the remaining one of the two members;
A total of two root pins (23) disposed near both ends of the one body (21) and penetrating both side surfaces of the one body (21);
A total of two root pins (33) disposed near both ends of the other body (31) and penetrating both side surfaces of the other body (31);
Links (25, 35) supported and freely pivotable at the end of each of said root pins (23, 33);
A total of two driven pins (13) penetrating the ends of the link (25) on the side of the one body (21) and the link (35) on the side of the other body (31) collectively;
A holding piece (12) supported by the follower pin (13);
A deformation shaft (11) which connects between the opposing holding pieces (12) and adheres to the holding pieces (12);
Consists of
The front body contacts the one body (21) and the other body (31), and the back surface of the front body contacts a member such as the pillar (51) or the cross member (61),
The links (25, 35) are disposed on both sides of the one body (21) and the other body (31), and the individual links (25, 35) are disposed from the root pins (23, 33). Extends towards the center of the one body (21) and the other body (31),
The two links (25, 35) facing each other across the contact surface of the one body (21) and the other body (31) overlap their tips and insert the follower pin (13) there ,
One driven pin (13) passes through the four links (25, 35) disposed at each end of the one body (21) and the other body (31), and the driven pins (13) On both sides of),
The holding pieces (12) facing each other between the two driven pins (13) are connected by the deformation axis (11), and the distance between the one body (21) and the other body (31) changes. And the link (25, 35) is displaced to expand and contract the deformation axis (11).

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