JP2014005694A - Coach screw and connector using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coach screw capable of restraining a manufacturing cost with its simple structure, and a connector using the same.SOLUTION: A coach screw 11 with a front edge portion embedded in a member and a rear edge portion protruding from the member comprises a collar section 21, an embedded portion 20 to be embedded in the member, a drive part 22 on which a tool is hung, and a screw part 23 capable of screwing together with a nut 49, etc. The embedded portion 20 protrudes from one side of the collar section 21 and comprises a cylindrical core body 25 and a spiral convex part 26. The drive part 22 and the screw part 23 are located on the opposite side to the embedded portion 20 across the collar section 21. The whole of the collar section 21, the embedded portion 20, the drive part 22 and the screw part 23 are integrally formed. This coach screw 11 can be produced on a large scale by rolling, and manufacturing cost can be restrained while the quality is maintained. A connector can also be structured by combining the coach screw 11 with an intermediate body 31, etc.

Description

  The present invention relates to a coach screw embedded in a member in various wood structures and a connector using the same.

  The frame construction method, which is widely used in wooden construction, constructs the skeleton of a building by combining members such as columns and horizontal members. In order to increase the strength of the skeleton, it is necessary to firmly connect the members to each other, and methods such as fitting the tenon and the tenon groove have been introduced for a long time. However, such a traditional method has problems such as strength reduction due to a cross-sectional defect of a member, and in recent years, it is often the case that various methods are used instead of the traditional method.

  A coach screw is mentioned as one of the various hardware used for connection of members. The coach screw has a shape that is larger than a normal wood screw, and a spirally extending ridge is formed on the side peripheral surface thereof. Since the entire protrusions bite into the member and both are firmly integrated, the durability against tensile load is excellent, and it is difficult to be affected by aging of the member. The coach screw has a diameter larger than that of a normal wood screw, and prior to screwing, a pilot hole is processed with a drill or the like in order to prevent the member from cracking. An example of a technique using this coach screw is shown in the following patent document.

  Patent Document 1 discloses an attachment structure for joining two members such as columns and beams in the shaft assembly method, and a joining bracket is interposed between the first structural material and the second structural material. ing. In order to fix this joining metal fitting to the first structural member, a bolt member equivalent to a general coach screw is used. The center of the bolt member is a lag screw screw portion that is screwed into the first structural member, and a male screw portion is formed at one or both ends of the bolt member. Then, after screwing the bolt member into the first structural member, the washer member is screwed into the male screw portion, then the joining metal fitting is inserted, and finally the nut is screwed together. It is sandwiched between nuts and fixed to the first structural member.

  In patent document 2, the fastening structure of the 2 member which comprises the frame | skeleton of a wooden building is disclosed. The two members are fastened by a general connecting means such as a screw nail or a connecting hardware. In addition to this, a reinforcing shaft that penetrates the two members is screwed. This reinforcing shaft is equivalent to a general coach screw, but has a spirally extending ridge formed in almost the entire region, and after being screwed, the ridge bites into both members. Therefore, the close contact state of the two members is maintained, and the rigidity of the fastening portion is improved.

  Coach screws are often used in the same way as ordinary nails. However, as described above, the coach screw has an advantage that it is excellent in durability against a tensile load and is not easily affected by the aging of the member, and is suitable for attachment of a joint metal fitting as in Patent Document 1. . In Patent Document 1, the joining metal fitting is sandwiched between a washer member and a nut, and even when the member contracts due to drying or the like, loosening of the joining fitting can be prevented.

JP 2010-106599 A JP 2011-32824 A

  In recent years, wooden buildings often use coach screws to ensure seismic resistance, etc., and it is important to suppress the manufacturing price of the coach screws and to be easy to handle. However, the bolt member (equivalent to a coach screw) disclosed in Patent Document 1 has a structure in which a bolt member and a washer member are separately manufactured, and the washer member is screwed to the male screw portion at the end of the bolt member. As a result, the number of parts increases, and problems remain in manufacturing price and handling. Furthermore, when the bolt member is screwed into the first structural member, a special tool may be used as shown in FIG.

  As described above, the coach screw has a plurality of advantages, and by utilizing this advantage also in a connecting tool that integrates two members, the rigidity and reliability of the connecting portion can be further improved. In particular, when connecting members having a relatively small cross section, it is difficult to use large metal fittings, and it is also necessary to suppress cross-sectional defects of the member, and it is desirable to effectively use a coach screw.

  The present invention has been developed on the basis of such a situation, and an object thereof is to provide a coach screw that can suppress the manufacturing cost with a simple structure and is easy to handle, and a coupling device using the same.

  The invention according to claim 1 for solving the above-mentioned problem is characterized in that the front end side is embedded in a member such as a column or a horizontal member, the rear end side protrudes from the member, and the flange portion that can contact the surface of the member, Embedded portion, a drive portion on which a tool can be hung, and a screw portion that can be screwed into a nut or a bolt, and the embedded portion protrudes from one surface of the flange portion, and is cylindrical. A core body and a projecting ridge that protrudes from the side peripheral surface of the core body and extends in a spiral shape, and the driving portion and the screw portion are located on the opposite side of the buried portion as viewed from the flange portion. The flange portion, the buried portion, the drive portion, and the screw portion are integrally molded.

  The coach screw according to the present invention is a metal bar shape used when assembling various wooden structures as in the prior art, and is composed of a brim portion, a buried portion, a drive portion, and a screw portion, and various wooden members including laminated members and the like. Screwed into. The brim portion is located in the middle of the coach screw, and is a flat portion developed in a direction perpendicular to the axial direction. One side of the brim portion is in contact with the surface of the member or a slight gap. Opposite each other. The buried part is a part that protrudes from one side of the collar part and is embedded in the member, and similarly to the conventional case, a cylindrical core that projects from the center of the collar part, and a spiral that projects from the side peripheral surface of the core. And ridges.

  The drive portion and the screw portion are located on the opposite side of the buried portion with respect to the collar portion, and are not buried in the member even after the coach screw is screwed into the member. And the drive part is a part to hang tools such as a wrench and spanner when screwing in, like a nut, a hexagonal outer edge, a hexagon hole formed on the end face to insert a hexagon stick spanner, etc. Can be selected. In addition, it is also possible to project a rod-like object from the center of the brim portion and form a pair of or more flat surfaces on the side peripheral surface to form a drive unit.

  The screw portion is a male screw or a female screw for screwing a nut or a bolt into the coach screw. The threaded portion is a male screw or a female screw conforming to various standards, and can be directly screwed with a general-purpose nut or bolt. The arrangement of the drive part and the screw part may be freely determined on the assumption that the respective functions can be exerted without difficulty.

  In this way, the coach screw is composed of the flange portion, the buried portion, the drive portion, and the screw portion, so that a tool is put on the drive portion and the buried portion is screwed into the member, and then a nut or bolt is screwed into the screw portion. Thus, the metal fittings can be easily attached. If the screw part is a male screw and the screw part protrudes from the center of the collar part, the metal fittings are sandwiched and fixed between the collar part and the nut.

  Furthermore, in the present invention, all of the flange portion, the buried portion, the drive portion, and the screw portion are integrally formed. Therefore, it is not necessary to combine a plurality of parts when used, and handling is easy. Moreover, by manufacturing the whole including the ridges and the flanges by plastic working, it can be mass-produced without difficulty while maintaining a certain quality, and the manufacturing price can be suppressed. In addition, the collar part can also be integrated with a drive part by increasing the thickness and making an outer edge into a hexagon.

  The invention according to claim 2 is used to connect two members such as a column and a horizontal member, and a coach screw whose front end side is embedded in a member such as the column and horizontal member and whose rear end side protrudes from the member, The intermediary body held by the coach screw, and a coupling means for pulling the two members to be connected together. The coach screw has a flange portion that can contact the surface of the member, and an embedded portion embedded in the member. , A drive portion on which a tool can be hung, and a screw portion that can be screwed into a nut or a bolt, and the buried portion protrudes from one side of the collar portion, and a cylindrical core body and the core A projecting ridge that protrudes from the side peripheral surface of the body and extends in a spiral shape, and the drive portion and the screw portion are located on the opposite side of the buried portion as viewed from the flange portion, and the flange portion; The buried part, the drive part and the screw part are The intermediate body is provided with a plurality of inner holes into which the rear end side of the coach screw can be inserted, and the coupling means is a coupling bolt to be inserted into the intermediate body. It is a connecting tool.

  The invention described in claim 2 is a coupling tool using a mediator and a coupling means in addition to the coach screw described in claim 1, and one mediator is always held by a plurality of coachscrews. Then, the two members are connected via the coupling means. The intermediate body is held in the vicinity of the surface of the member into which the coach screw is screwed in, but its specific shape is arbitrary.

  A plurality of medium holes are provided in the mediator. The inner hole is for inserting the rear end side of the coach screw protruding from the surface of the member after the screwing, and one coach screw is inserted into one inner hole. Furthermore, the cross-section of the medium hole is set to a size that does not allow insertion of the brim portion. Therefore, when the rear end side of the coach screw is inserted into the inner hole, and then tightened by screwing a nut or bolt into the screw part, the inner hole is sandwiched between the nut and the flange part, and the intermediate body is integrated with the coach screw. Turn into. In addition, only the screw part of a coach screw may enter into a center hole, and both a screw part and a drive part may enter.

  The arrangement of the plurality of bores can be freely determined according to the size of the member and the number of coach screws. In addition, the inner hole can simply penetrate both sides of the mediator, but in order to embed a nut or the like, it is also possible to provide a counterbore hole with a large diameter on the surface of the mediator and to provide an inner hole behind it. . In addition, the mediator held by the coach screw may or may not be brought into contact with the surface of the member.

  The coupling means substantially bears the connection of the two members, and in the present invention, a coupling bolt is used. The coupling bolt is inserted into a hole provided in the mediator, and further, the tip is screwed to the opposing member to draw the two members together. Since the connecting bolt is inserted into the intermediate body, the load acting on the connecting bolt is transmitted to the member via the intermediate body and the coach screw. It should be noted that a female screw is provided on the opposing member by some means so that the coupling bolt can be screwed together.

  The invention according to claim 3 is the same connector as the invention according to claim 2, but the mediator and the coupling means are different. The mediator used in the present invention is a pair of rods and is fixed separately to each of the two members to be connected. The coupling means integrates the mediator separated and arranged in two members in a close contact state, and is composed of an inclined surface and a receiving band formed on the mediator.

  The inclined surface is a portion where the tip of the mediator is wedge-shaped, and the receiving band is a ring-shaped portion protruding from the side surface of the mediator, and the inclined surface can be inserted therein. Then, an inclined surface is formed at the upper end of one intermediate body, a receiving band is formed at the lower end, a receiving band is formed at the upper end of the other intermediate body, and an inclined surface is formed at the lower end. By inserting the inclined surface into the receiving band of the other party, the pair of mediators come into close contact with each other and the two members are connected.

  The invention according to claim 4 is used to connect two members such as a column and a horizontal member, and a coach screw whose front end side is embedded in a member such as the column and horizontal member and whose rear end side protrudes from the member, An intermediate body that is in surface contact with both of the two members to be connected, and the coach screw can hang a tool capable of contacting the surface of the member, a buried portion embedded in the member, and a tool. A driving portion; and a screw portion that can be screwed into a nut or a bolt. The buried portion protrudes from one surface of the flange portion, and protrudes from a cylindrical core body and a side peripheral surface of the core body. And the drive part and the screw part are located on the opposite side of the buried part as seen from the collar part, and the collar part, the buried part and the drive part. And the screw part are integrally molded, and the flange part and the screw part are Since the intermediate body is sandwiched between the nut or the bolt that is screwed into a portion, the rear end side of the coach screw embedded in each of the two members to be connected can be inserted into the intermediate body. A coupling tool having a plurality of inner holes.

  The invention described in claim 4 is a connecting tool using an intermediate body in addition to the coach screw described in claim 1, and the intermediate body is sandwiched between two members to be connected. Both are in surface contact. Moreover, a coach screw embeds two or more in each of the two members to be connected, and inserts the rear end side thereof into the intermediate hole of the intermediate body. Then, when a nut or the like is screwed into the screw portion of the coach screw, the coach screw and the intermediate body are integrated. Thus, the two members are connected via the intermediate body by integrating the coach screw and the intermediate body embedded in each of the two members.

  As in the first aspect of the invention, by integrally forming the coach screw composed of the flange portion, the buried portion, the drive portion, and the screw portion, mass production by rolling is possible, and the production price is maintained while maintaining the quality. Can be suppressed. Therefore, even when using the product of the present invention for the purpose of ensuring earthquake resistance, an increase in cost can be suppressed. The product of the present invention is integrated as a whole, and it is easy to handle consistently from the manufacturing stage to the time of construction on site. Furthermore, the drive unit can be a simple hexagon or the like, and a general-purpose tool can be used without difficulty, and handling is also easy in this respect.

  As in the invention described in claim 2 or 3, the coupling tool is constituted by a coach screw, a mediator, and a coupling means, so that the advantage of the coach screw according to claim 1 can be enjoyed, and the two members to be coupled can be connected. The load transmitted between them is dispersed over a wide range via the mediator and the plurality of coach screws. Therefore, the stress acting on the member is relieved, the looseness due to the secular deformation and the like is hardly generated, and the rigidity and reliability can be further improved. The shape of the mediator is free, and the number and arrangement of coach screws are also free. Therefore, even when connecting members having a small cross section, by arranging a large number of small-diameter coach screws, the necessary strength can be secured without difficulty while suppressing cross-sectional defects of the member.

  In addition to being able to enjoy the advantages of the coach screw according to claim 1 by configuring the coupler with a coach screw and an intermediate body as in the invention of claim 4, the load transmitted between the two members to be coupled Is widely dispersed via an intermediate and a plurality of coach screws. Therefore, the stress acting on the member is relieved, the looseness due to the secular deformation and the like is hardly generated, and the rigidity and reliability can be further improved. Further, the shape of the intermediate body is free, and the number and arrangement of coach screws are also free. Therefore, even when connecting members having a small cross section, by arranging a large number of small-diameter coach screws, the necessary strength can be secured without difficulty while suppressing cross-sectional defects of the member.

It is a perspective view which shows the coach screw by this invention, and the coupling tool using this coach screw. It is a perspective view which shows after connecting the pillar and horizontal member of FIG. It is a longitudinal cross-sectional view after connecting the pillar and horizontal member of FIG. It is a perspective view which shows the case where a pillar and a horizontal member are connected using the connection tool which consists of a pair of mediator. It is a longitudinal cross-sectional view after connecting the pillar and horizontal member of FIG. It is a perspective view which shows the case where a pillar and a horizontal member are connected using the connection tool which consists of a rectangular-shaped intermediate body. It is a longitudinal cross-sectional view after connecting the pillar and horizontal member of FIG. It is a perspective view which shows the example of a shape of the coach screw by this invention. It is a perspective view which shows the case where a pillar and a horizontal member are connected using the connection tool which consists of a barbell-shaped intermediate body. It is a longitudinal cross-sectional view after connecting the pillar and horizontal member of FIG. It is a perspective view which shows the case where a pillar and a horizontal member are connected using the connection tool which consists of a plate-shaped intermediate body. It is a longitudinal cross-sectional view after connecting the pillar and horizontal member of FIG. It is a perspective view which shows the case where an aluminum frame and a horizontal member are connected using the coach screw by this invention. It is a longitudinal cross-sectional view after connecting the aluminum frame and horizontal member of FIG.

  FIG. 1 shows a coach screw 11 according to the present invention and a connector using the coach screw 11. By drawing the end surface of the horizontal member 51 toward the side surface of the column 41, an L-shaped connecting portion is formed, and a total of eight coach screws 11 having the same shape are screwed into the side surface of the column 41. In the coach screw 11, the buried portion 20 protrudes from one surface of the disc-shaped flange portion 21, and the drive portion 22 and the screw portion 23 protrude from the opposite side of the buried portion 20 when viewed from the flange portion 21.

  The buried portion 20 is a portion to be screwed into various members (column 41 in this figure), and is composed of a cylindrical core body 25 and protruding ridges 26 that protrude from the side peripheral surface of the core body 25 and extend in a spiral shape. As the entire area of the ridge 26 bites into the member, the coach screw 11 is firmly integrated with the member. In addition, the ridges 26 are formed in almost the entire area of the core body 25 and can disperse the load over a wide range and are not easily affected by aging of the members. However, the coach screw 11 has a larger diameter than a normal wood screw, and when screwed into the pillar 41 or the like, a pilot hole 43 having substantially the same diameter as the core body 25 is processed in advance.

  The drive part 22 is adjacent to the brim part 21, and the outer edge thereof is a hexagonal part such as a nut. When the coach screw 11 is screwed, a tool such as a wrench or spanner can be applied. A screw portion 23 having a male screw shape is formed at the tip of the drive portion 22 and a general-purpose nut 49 can be screwed together. In addition, the drive part 22 and the screw part 23 are made substantially equal in the size of a transverse section (a section in a direction perpendicular to the axis). Furthermore, as for the coach screw 11, the whole from the core body 25 to the screw part 23 is integrally formed by rolling, and like the conventional nails, the handling is easy, and the manufacturing price can be suppressed by mass production.

  The column 41 and the horizontal member 51 are integrated by a connecting tool including the coach screw 11, the intermediate body 31, and the coupling bolt 48. The intermediary body 31 is in the form of a metal disk and is fixed to the side surface of the column 41 via a total of four coach screws 11. On the surface of the intermediary body 31, the screw part 23 and the drive part 22 of the coach screw 11 are provided. For insertion, a total of four inner holes 35 are arranged in a cross shape. The inner hole 35 has an inner diameter that allows the screw part 23 and the driving part 22 to pass with a margin, but the brim part 21 cannot pass through the inner hole 35. Therefore, after inserting the screw portion 23 and the drive portion 22 into the inner hole 35 and then screwing and tightening the nut 49 to the screw portion 23, the inner hole 35 is sandwiched between the flange portion 21 and the nut 49, and the intermediate body 31 and the coach screw are inserted. 11 are integrated.

  In FIG. 1, a connecting bolt 48 is used as a connecting means for connecting the two members of the column 41 and the horizontal member 51. The shaft portion of the coupling bolt 48 is inserted into a punched hole 36 provided at the center of the intermediate body 31. In addition, two lag screws 58 are embedded in the end surface of the horizontal member 51 in the vertical direction. The lag screw 58 is the same as the coach screw 11, but its diameter is increased to improve the strength against tensile load. In order to embed the lag screw 58, a round hole 54 is processed in advance on the end surface of the horizontal member 51. The coupling bolt 48 and the lag screw 58 are considered to be aligned concentrically. When the coupling bolt 48 is inserted into the hole 36 and the tip of the coupling bolt 48 is screwed into the center of the end surface of the lag screw 58, the horizontal member 51 becomes the column 41. Be drawn to.

  A round hole 44 is processed on the side surface of the column 41 concentrically with the round hole 54 of the horizontal member 51. The round hole 44 penetrates the side surface of the column 41 and embeds a metal pipe 47 therein. One end surface of the pipe 47 is brought into contact with the lag screw 58, and the other end surface is brought into contact with the mediator 31. Therefore, the load that the horizontal member 51 presses the column 41 is transmitted to the mediator 31 via the pipe 47, and the horizontal member 51 is prevented from sinking into the column 41. On the contrary, a load that separates the column 41 and the horizontal member 51 is transmitted to the mediator 31 via the coupling bolt 48. By using the mediating body 31 in this way, any load acting on the horizontal member 51 is transmitted to the column 41 via the mediating body 31 and the coach screw 11.

  In FIG. 1, two mediators 31 are arranged on the upper and lower sides, one coupling bolt 48 is inserted into each, and the column 41 and the horizontal member 51 are drawn together by a total of two coupling bolts 48. Each mediator 31 is fixed by a total of four coach screws 11. The coach screw 11 is smaller than the lag screw 58, the diameter of the core body 25 is about 6 mm, and the diameter of the ridge 26 is about 10 mm. Therefore, even with a member having a relatively small cross section, a plurality of coach screws 11 can be embedded without difficulty, the arrangement thereof is flexible, and the versatility is extremely high, and it can be used for various connecting portions.

  Each of the hole 36 and the middle hole 35 provided in the intermediate body 31 is provided with a counterbore hole 37 having an enlarged diameter at one end thereof, and the head of the coupling bolt 48 and the nut 49 are embedded in the intermediate body 31. be able to. Moreover, since the coach screw 11 has a comparatively small diameter, the small hole 43 can use a portable small electric drill, and is excellent in convenience.

  FIG. 2 shows a state after the column 41 and the horizontal member 51 of FIG. 1 are connected. The connecting portion has an L shape in which the end surface of the horizontal member 51 is in contact with the side surface of the column 41, and two mediators 31 are lined up and down on the side surface of the column 41. 31 is fixed by a total of four coach screws 11. The coupling bolt 48 inserted into the center of the intermediate body 31 is screwed with a lag screw 58 embedded in the horizontal member 51, and draws the horizontal member 51 to the column 41. Note that the head of the coupling bolt 48 and the nut 49 are embedded in the counterbore hole 37, and the protrusion from the mediator 31 is suppressed.

  The screwing of the coach screw 11 and the fixing of the mediating body 31 can be performed at the lumbering stage prior to the connecting operation between the column 41 and the horizontal member 51. Therefore, at the time of construction, the column 41 is brought upright, the end surface of the horizontal member 51 is brought into contact with the side surface, and then the two connecting bolts 48 are inserted to complete the connecting operation. In actual construction, in order to receive a shear load acting between the column 41 and the horizontal member 51, pins may be driven so as to straddle the boundary surface.

  FIG. 3 is a longitudinal section after the column 41 and the horizontal member 51 of FIG. 1 are connected. Although the buried portion 20 of the coach screw 11 is buried in the column 41, the brim portion 21 is also buried in the column 41, and the mediator 31 is in close contact with the side surface of the column 41. In addition, the pipe 47 penetrating the side surface of the column 41 has its entire length matched with the lateral width of the column 41, and the pipe 47 is in contact with both the lag screw 58 and the intermediate body 31. Further, the coupling bolt 48 draws the lag screw 58. As a result, the load acting on the horizontal member 51 is transmitted from the lag screw 58 to the intermediate body 31 via the coupling bolt 48 and the pipe 47. Therefore, the intermediate body 31 receives almost all the load acting between the column 41 and the horizontal member 51.

  The screw part 23 and the drive part 22 of the coach screw 11 are inserted into the intermediate hole 35 of the mediator 31, and the nut 49 is screwed onto the screw part 23, so that the intermediate hole 35 is connected to the flange part 21. The intermediate body 31 and the coach screw 11 are integrated by being sandwiched between nuts 49. Therefore, the load acting on the intermediate body 31 is transmitted to the column 41 via the core body 25 and the ridges 26 of the coach screw 11. If the number of the coach screws 11 is increased, a larger load can be received, and the connector according to the present invention can be adapted to any connecting portion by changing the number and arrangement of the coach screws 11.

  FIG. 4 shows a case where the column 41 and the horizontal member 51 are connected using a connecting tool including a pair of mediators 32 and the like. In this figure, like FIG. 1, the end surface of the horizontal member 51 is drawn toward the side surface of the column 41, but the structure of the connector is different. One intermediate body 32 is fixed to each of the column 41 and the horizontal member 51, and the two intermediate members 32 are integrated to connect the column 41 and the horizontal member 51. The intermediate body 32 is in the shape of a metal square bar, and both the pillar 41 side and the horizontal member 51 side have the same shape. One end of the mediator 32 is provided with an inclined surface 38 whose one side is tapered, and a ring-shaped receiving band 39 protruding from the side surface of the mediator 32 is attached to the other end.

  The inclined surface 38 and the receiving band 39 are a pair of coupling means. After only one of the two mediators 32 is turned upside down, the inclined surface 38 of one of the mediators 32 is moved to the other receiving band 39. When inserted, the two mediators 32 are brought into close contact with each other by the action of the inclined surface 38. Therefore, after the intermediate body 32 is fixed in a predetermined posture with respect to each of the side surface of the column 41 and the end surface of the horizontal member 51, when each inclined surface 38 is inserted into the receiving band 39 of the other party, the intermediate bodies 32 naturally The pillar 41 and the horizontal member 51 are connected in close contact. Note that a stepped portion 52 is processed in the center of the end surface of the horizontal member 51 in order to cover the intermediate body 32.

  For fixing the intermediate body 32, the coach screw 11 having the same shape as that depicted in FIG. 1 is used, two on each of the side surface of the column 41 and the back surface of the step portion 52 of the horizontal member 51. Embedded. In order to insert the screw portion 23 of the coach screw 11 and the like, two intermediate holes 35 are provided in the upper and lower sides on the side surface of the intermediate body 32, and a counterbore for accommodating the nut 49 is provided at one end of the intermediate hole 35. A hole 37 is provided.

  FIG. 5 is a longitudinal section after the column 41 and the horizontal member 51 of FIG. 4 are connected. Each intermediary body 32 is fixed to the column 41 and the horizontal member 51 by the coach screw 11. Further, the adjacent mediator 32 is in close contact by the inclined surface 38 and the receiving band 39, and the side surface of the column 41 and the end surface of the horizontal member 51 are also in close contact. The screw portion 23 and the drive portion 22 of the coach screw 11 are inserted into the intermediate hole 35 of the intermediate body 32, and a nut 49 is screwed into the screw portion 23 in the counterbore hole 37. In addition, in actual construction, a pin or the like may be driven separately in order to prevent the horizontal member 51 from floating.

  FIG. 6 shows a case where the column 41 and the horizontal member 51 are connected using a connecting tool including a rectangular intermediate body 33 or the like. The coach screw 12 used here has an embedded portion 20 formed on one end side and a male screw-like screw portion 23 formed on the other end side, at the boundary between the embedded portion 20 and the screw portion 23. The flange portion 21 and the drive portion 22 are integrally formed. The drive unit 22 has a transverse section larger than that of the core body 25 and the screw part 23 so that the function as the brim part 21 can be exhibited.

  The intermediary body 33 is an elongated rectangular shape extending vertically, and is provided with two inner holes 35 for inserting the coach screw 12 and two holes 36 for inserting the coupling bolts 48 alternately. The coach screw 12 used here has a structure in which the flange 21 and the drive unit 22 are integrated, and it is difficult to embed the entire drive unit 22 in the column 41. Therefore, a counterbore hole 40 for accommodating the drive unit 22 is provided at one end of the middle hole 35 of the mediator 33.

  Two lag screws 58 are embedded vertically on the end surface of the horizontal member 51, and another lag screw 45 is embedded concentrically on the side surface of the column 41. The lag screw 45 on the column 41 side has the same diameter as that on the horizontal member 51 side, but the extension is different. One end of the lag screw 45 is in contact with the lag screw 58 on the horizontal member 51 side, and the other end is an intermediate body. 33 is in contact. The coupling bolt 48 passes through the center of the lag screw 45 on the column 41 side and is screwed with the lag screw 58 on the horizontal member 51 side. A round hole 44 for embedding the lag screw 45 and a lower hole 43 for embedding the coach screw 12 are processed on the side surface of the column 41.

  FIG. 7 is a longitudinal section after the column 41 and the horizontal member 51 of FIG. 6 are connected. The intermediate body 33 is fixed to the side surface of the column 41 by two coach screws 12. In addition, the coach screw 12 used here has the flange portion 21 and the drive portion 22 integrated, and the drive portion 22 protrudes from the side surface of the column 41. However, the intermediate body 33 is provided with a counterbore hole 40 for accommodating the drive unit 22, and the intermediate body 33 is in contact with the side surface of the column 41.

  The end surfaces of the lag screw 45 on the column 41 side and the lag screw 58 on the horizontal member 51 side are in contact with each other. Therefore, the load that the horizontal member 51 presses the column 41 is received by the lag screw 45 on the column 41 side, and is also received by the coach screw 12 via the intermediate body 33. Even when the lag screw 45 on the column 41 side cannot resist the load for some reason, the connection between the column 41 and the horizontal member 51 is maintained by the coupling bolt 48, the intermediate body 33, and the coach screw 12, and reliability is improved. Improve further.

  FIG. 8 shows an example of the shape of a coach screw according to the present invention. The coach screw 13 depicted in the upper “other shape example 1” has a male screw-like screw portion 23 with a large diameter and a hexagonal hole formed on the end face thereof. The hexagonal hole is for inserting a hexagonal bar spanner and functions as the driving unit 22. When the mediator 31 is fixed with the coach screw 13, a nut 49 is screwed into the screw portion 23 as in FIG.

  The coach screw 14 depicted in the “other shape example 2” below has a slightly larger diameter of the core body 25, and the screw portion 24 is a female screw formed at the center of the end face on the left side of the drawing. And the drive part 22 is the cylindrical part protruded to the left from the collar part 21, and in order to hang | hang a wrench etc., the upper and lower two surfaces are shaved in parallel. When the mediator 31 is fixed with the coach screw 14, the drive unit 22 is inserted into the middle hole 35, the bolt 46 is screwed into the screw part 24, and the middle hole 35 is formed between the head of the bolt 46 and the flange part 21. Sandwich. In consideration of the tightening of the bolt 46, the extension of the drive unit 22 is slightly shorter than the extension of the inner hole 35.

  FIG. 9 shows a case where the column 41 and the horizontal member 51 are connected using a connecting tool made of a barbell-shaped intermediate body 61 or the like. The intermediate body 61 sandwiched between the pillar 41 and the horizontal member 51 has a barbell shape in which two round plates 63 are connected by a shaft rod 64, and the round plate 63 and the shaft rod 64 are integrated by welding. The left round plate 63 contacts the side surface of the column 41, and the right round plate 63 in the drawing contacts the end surface of the horizontal member 51. Further, in order to fix the intermediate body 61 to the column 41 and the horizontal member 51, four coach screws 11 are embedded in the side surface of the column 41 and the end surface of the horizontal member 51, respectively. This coach screw 11 has the same shape as that depicted in FIG. 1 and the like, and is composed of a flange portion 21 and a screw portion 23, and the like so that the rear end side of the coach screw 11 is inserted into each round plate 63. The four inner holes 65 are arranged in a cross shape.

  For each of the pillar 41 and the horizontal member 51, the four coach screws 11 are embedded at predetermined positions, the rear end side of the coach screw 11 is inserted into the inner hole 65, and the nut 49 is screwed to the screw portion 23. When tightened, the intermediate body 61 is fixed to the column 41 and the horizontal member 51. Therefore, the column 41 and the horizontal member 51 are connected via the coach screw 11 and the intermediate body 61.

  The column 41 is installed on the foundation 71 via an H-shaped column base 72. The column base 72 is fixed by an anchor bolt 73 embedded in the foundation 71 and a nut 74 that is screwed to the tip of the anchor bolt 73. Further, in order to connect the column 41 to the column base 72, two coach screws 11 are embedded in the lower surface of the column 41.

  FIG. 10 is a longitudinal section after the column 41 and the horizontal member 51 of FIG. 9 are connected. The column 41 is installed on the foundation 71 via a column base 72, and the column base 72 is attracted to the foundation 71 by an anchor bolt 73 and a nut 74. Further, the screw portion 23 of the coach screw 11 embedded in the lower surface of the column 41 passes through the column base metal 72, and a nut 49 is screwed to the tip of the screw portion 23, whereby the column 41 and the column base metal 72. Are integrated.

  The column 41 and the horizontal member 51 are connected to each other via the coach screw 11 and the intermediate body 61. At the time of construction, if the coach screw 11 is embedded in the column 41 or the horizontal member 51 in advance, after the column 41 is made upright by the column base 72, the rear end side of the coach screw 11 is inserted into the intermediate hole 65 of the intermediate body 61. When the nut 49 is screwed into the screw portion 23 and tightened, the connection between the column 41 and the horizontal member 51 is completed. Therefore, it is possible to reduce work time and labor on site.

  FIG. 11 shows a case where the column 41 and the horizontal member 51 are connected using a connecting tool made of a plate-like intermediate body 62 or the like. This figure depicts a T-shaped connecting portion that receives the lower surface of the horizontal member 51 at the upper end surface of the column 41, and the intermediate body 62 is sandwiched between the boundaries of the column 41 and the horizontal member 51. Therefore, the intermediate body 62 has a simple plate shape, and a total of four inner holes 65 are provided for inserting the rear end side of the coach screw 11. The coach screws 11 have the same shape as that depicted in FIG. 1 and the like, and are embedded in the pillar 41 and the horizontal member 51 two by two.

  The center two of the four inner holes 65 provided in the intermediate body 62 are for inserting the coach screw 11 embedded in the upper end surface of the column 41. The upper end side has a counterbore with an enlarged inner diameter. A hole 67 is provided. On the other hand, the two inner holes 65 at both ends are for inserting the coach screw 11 embedded in the lower surface of the horizontal member 51, and a counterbore hole 67 having an enlarged inner diameter is provided on the lower end side thereof.

  FIG. 12 is a longitudinal section after the column 41 and the horizontal member 51 of FIG. 11 are connected. The intermediate body 62 is in contact with both the upper end surface of the column 41 and the lower surface of the horizontal member 51, and the column 41 and the horizontal member 51 are connected via the intermediate member 62 and the coach screw 11. Note that the nut 49 on the rear end side of the coach screw 11 is all housed in the counterbore hole 67 and does not protrude from the surface of the intermediate body 62. Therefore, the lower surface of the horizontal member 51 can be brought into close contact with the intermediate body 62.

  At the time of construction, if the coach screw 11 is embedded in the column 41 or the horizontal member 51 in advance, when the column 41 and the horizontal member 51 are connected, the rear end side of the coach screw 11 is inserted into the middle hole 65 of the intermediate body 62. Thereafter, when the nut 49 is screwed into the screw portion 23 and tightened, the operation is completed. Therefore, it is possible to reduce work time and labor on site.

  FIG. 13 shows a case where the aluminum frame 76 and the horizontal member 51 are connected using the coach screw 11 according to the present invention. In this figure, the column 41 of FIG. 11 is replaced with an aluminum frame 76, and an intermediate body 62 having the same shape as that of FIG. 11 is sandwiched between the upper end surface of the aluminum frame 76 and the lower surface of the horizontal member 51. The aluminum frame 76 has a hollow rod shape and is provided with two screw holes 78 on the upper end surface. Then, after the intermediate body 62 is placed on the upper end surface of the aluminum frame 76, a total of two fixing bolts 77 are inserted from the counterbore hole 67 at the center of the upper surface of the intermediate body 62, and the tips are screwed into the screw holes 78 and tightened. Then, the intermediate body 62 is fixed to the aluminum frame 76. In addition, the point which integrates the horizontal member 51 and the intermediate body 62 with the coach screw 11 and the nut 49 is the same as FIG.

  FIG. 14 is a longitudinal section after the aluminum frame 76 and the horizontal member 51 of FIG. 13 are connected. The intermediate body 62 is in contact with both the upper end surface of the column 41 and the lower surface of the horizontal member 51, and the aluminum frame 76 and the intermediate body 62 are connected via a fixing bolt 77. The intermediate body 62 and the horizontal member 51 are connected to each other through the coach screw 11 and the nut 49. Note that the head of the fixing bolt 77 is accommodated in the counterbore hole 67 and does not protrude from the upper surface of the intermediate body 62. Therefore, the lower surface of the horizontal member 51 can be brought into close contact with the intermediate body 62.

11 Coach screw 12 Coach screw (integrated flange and drive)
13 Coach screw (with hexagonal hole on the end face as the drive unit)
14 Coach screw (screw part is female screw)
20 buried part 21 brim part 22 drive part 23 screw part (male thread)
24 Screw part (Female thread)
25 Core 26 Convex 31 Mediator (disc shape)
32 Mediator (with inclined surface and catch band)
33 Mediator (bar-shaped)
35 Medium hole 36 Extract hole 37 Counterbore hole 38 Inclined surface (coupling means)
39 Receiving band (coupling means)
40 counterbore hole (for housing the drive unit)
41 Pillar (member)
43 Pilot hole 44 Round hole 45 Lug screw (embedded in pillar)
46 bolt 47 pipe 48 coupling bolt (coupling means)
49 Nut 51 Horizontal member (member)
52 Stepped portion 53 Pilot hole 54 Round hole 58 Lag screw (embedded in horizontal member)
61 Intermediate (barbell-shaped object composed of round plate and shaft rod)
62 Intermediate (plate-shaped)
63 Round plate 64 Shaft rod 65 Middle hole 67 Counterbore hole 71 Foundation 72 Column base 73 Anchor bolt 74 Nut 76 Aluminum frame 77 Fixing bolt 78 Screw hole

Claims (4)

The front end side is embedded in a member such as a column (41) or a horizontal member (51) and the rear end side protrudes from the member,
The flange portion (21) that can contact the surface of the member, the buried portion (20) embedded in the member, the drive portion (22) on which a tool can be hung, and the nut (49) or the bolt (46) are screwed together. Possible screw parts (23, 24),
The buried portion (20) protrudes from one side of the brim portion (21), and has a cylindrical core body (25) and a ridge that protrudes from the side peripheral surface of the core body (25) and extends spirally. (26)
The drive part (22) and the screw part (23, 24) are located on the opposite side of the buried part (20) when viewed from the flange part (21),
The flange portion (21), the buried portion (20), the drive portion (22), and the screw portion (23, 24) are integrally formed with a coach screw (11, 12, 13, 14). Used to connect two members such as pillar (41) and horizontal member (51),
A coach screw (11, 12, 13, 14) whose front end is embedded in a member such as the pillar (41) or the horizontal member (51) and whose rear end protrudes from the member, and the coach screw (11, 12, 13) 14), and a coupling means for pulling the two members (41, 51) to be connected together,
The coach screws (11, 12, 13, 14) are
The flange portion (21) that can contact the surface of the member, the buried portion (20) embedded in the member, the drive portion (22) on which a tool can be hung, and the nut (49) or the bolt (46) are screwed together. Possible screw parts (23, 24),
The buried portion (20) protrudes from one side of the brim portion (21), and has a cylindrical core body (25) and a ridge that protrudes from the side peripheral surface of the core body (25) and extends spirally. (26)
The drive part (22) and the screw part (23, 24) are located on the opposite side of the buried part (20) when viewed from the flange part (21),
The flange portion (21), the buried portion (20), the drive portion (22), and the screw portion (23, 24) are integrally formed,
The intermediate body (31, 33) is provided with a plurality of inner holes (35) into which the rear end side of the coach screw (11, 12, 13, 14) can be inserted,
The coupling tool, wherein the coupling means is a coupling bolt (48) to be inserted into the mediator (31, 33). Used to connect two members such as pillar (41) and horizontal member (51),
A coach screw (11, 12, 13, 14) whose front end is embedded in a member such as the pillar (41) or the horizontal member (51) and whose rear end protrudes from the member, and the coach screw (11, 12, 13) 14), and a coupling means for pulling the two members (41, 51) to be connected together.
The coach screws (11, 12, 13, 14) are
The flange portion (21) that can contact the surface of the member, the buried portion (20) embedded in the member, the drive portion (22) on which a tool can be hung, and the nut (49) or the bolt (46) are screwed together. Possible screw parts (23, 24),
The buried portion (20) protrudes from one side of the brim portion (21), and has a cylindrical core body (25) and a ridge that protrudes from the side peripheral surface of the core body (25) and extends spirally. (26)
The drive part (22) and the screw part (23, 24) are located on the opposite side of the buried part (20) when viewed from the flange part (21),
The flange portion (21), the buried portion (20), the drive portion (22), and the screw portion (23, 24) are integrally formed,
The mediator (32) is a pair of rods, and is fixed separately to each of the two members (41, 51) to be connected, and each mediator (32) has the coach screw (11, 12). , 13, 14) are provided with a plurality of bores (35) into which the rear end side can be inserted,
The coupling means characterized in that the coupling means is an inclined surface (38) and a receiving band (39) formed in the mediator (32). Used to connect two members such as pillar (41) and horizontal member (51),
The two members (41, 41, 41, 41, 14) connected with the coach screw (11, 12, 13, 14) whose front end side is embedded in a member such as the pillar (41) or the horizontal member (51) and whose rear end side projects from the member 51) and an intermediate body (61, 62) in surface contact with both sides,
The coach screws (11, 12, 13, 14) are
The flange portion (21) that can contact the surface of the member, the buried portion (20) embedded in the member, the drive portion (22) on which a tool can be hung, and the nut (49) or the bolt (46) are screwed together. Possible screw parts (23, 24),
The buried portion (20) protrudes from one side of the brim portion (21), and has a cylindrical core body (25) and a ridge that protrudes from the side peripheral surface of the core body (25) and extends spirally. (26)
The drive part (22) and the screw part (23, 24) are located on the opposite side of the buried part (20) when viewed from the flange part (21),
The flange portion (21), the buried portion (20), the drive portion (22), and the screw portion (23, 24) are integrally formed,
In order to sandwich the intermediate body (61, 62) between the flange part (21) and the nut (49) or the bolt (46) screwed into the screw part (23, 24), the intermediate body (61, 62) 61, 62), a plurality of bores into which the rear end sides of the coach screws (11, 12, 13, 14) embedded in the two members (41, 51) to be connected can be inserted. 65).

Images