JP2008163662A - Fastener - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fastener installable in the same manner as in the case of conventional tenon pipes even if the side surfaces of two members to be joined to each other are not arranged parallel to each other. <P>SOLUTION: Each of the conventional tenon pipes is divided into two parts: a first shaft 31 and a second shaft 32. The first shaft 31 and the second shaft 32 are rotatably formed integrally with each other by a joining means. Therefore, the phases of lateral holes 33, 34 for inserting drift pins 41, 42 therein are adjustable for each shafts 31, 32, respectively. Even if the side surfaces of the first member 11 and the second member 21 are not arranged parallel to each other, the directions of the lateral holes 33, 34 can be set vertical relative to the side surfaces of the members 11, 21 by rotating the shafts 31, 32 according to the intersection angle, respectively. As a result, the workability can be improved. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a fastener that is used when joining members such as foundations and pillars constituting a skeleton of a wooden building and is generally called a hozo pipe.

  The frame construction method, which is widely used as a construction method for wooden buildings such as houses, is to lay the foundation horizontally on the foundation concrete and then place the pillar upright on the foundation. It constitutes the skeleton of the building. In order to ensure the strength of the building, it is necessary to firmly join members such as foundations, pillars and beams, and measures such as processing tenons on the end faces of members have been taken for a long time. Recently, there are many cases of using various hardware having excellent cost and workability.

As the above-mentioned hardware, various forms are used depending on the application, and one of them is a hozo pipe. This hoso-pipe is a metal round bar and is inserted so as to communicate the overlapping surfaces of two members to be joined. However, simply inserting the hozo-pipe into the member cannot counter the load in the pulling direction, so a drift pin penetrating the member and the hozo-pipe is driven. Therefore, a plurality of lateral holes that penetrate the side surface are formed in the hozo pipe. FIG. 5 shows an example of a state in which the base and the column are joined by a hozo pipe. Moreover, the following patent document is mentioned as an example of the technical development regarding a hozo pipe.
JP 2000-204676 A

  In ordinary buildings as well as wooden buildings, in consideration of workability and layout, the compartment of the room is rectangular, and the edge of the building is along two orthogonal straight directions. However, if there are restrictions on the site in an urban area or the like, it is unavoidable that an irregular construction such as a trapezoidal shape may be used. In this case, only a part of the members are arranged in the oblique direction, but the shaft assembly method is basically arranged to arrange each member such as a column in parallel or at a right angle, and the members arranged in the oblique direction are arranged. When joining to other members, it is difficult to use general-purpose hardware, special work and parts are required, and costs and time during construction tend to increase.

  A normal hozo pipe is based on the premise that bases, columns, and the like are arranged in parallel or at right angles to each other, and a horizontal hole for driving a drift pin is also formed in the same direction or in a direction orthogonal to each other. However, when some members are arranged in an oblique direction due to site reasons or the like, the side surfaces of the two members to be joined may not be parallel but have an angle of intersection, as indicated by a two-dot chain line in FIG. At that time, the pin hole processed in the member for driving the drift pin needs to be formed in an oblique direction according to the intersection angle, and the workability is poor and it is difficult to ensure the accuracy. In order to solve this problem, a hozo-pipe having a horizontal hole formed in a direction corresponding to the angle of intersection of both members may be used, but there is no versatility and an increase in cost is inevitable.

  The present invention has been developed based on such circumstances, and an object of the present invention is to provide a fastener that can be constructed in the same manner as a conventional hozo pipe even when the side surfaces of two members to be joined are not aligned in parallel.

  The invention according to claim 1 for solving the above-mentioned problem is a fastener that is embedded in a shaft hole that communicates the overlapping portion of the first member and the second member, and is integrated with each member via a drift pin. There is a first shaft having a circular cross section that is embedded in the shaft hole of the first member and has a horizontal hole for inserting the drift pin, and a shaft that is embedded in the shaft hole of the second member and that passes through the drift pin. And a second shaft having a circular cross section in which a horizontal hole is formed, and the first shaft and the second shaft are coupled to each other so as to be rotatable in a circumferential direction by a coupling means. It is a tool.

  Here, the first member and the second member are names given for convenience in order to distinguish the two members integrated by the fastener according to the present invention, and all of them are skeletons in the shaft construction method such as foundations, columns, and beams. The point of use and the arrangement thereof are not limited in any way. Further, the superposition form of the first member and the second member may be any form as long as it can be realized, including a T-shape in which the side face of one member is brought into contact with the end face of the other member.

  The first shaft and the second shaft correspond to a conventional hozo pipe body, and in the present invention, the first shaft and the second shaft are divided into two parts, one of which is a first shaft and the other is a second shaft. The diameters are preferably the same, although they may be different. As in the prior art, each shaft is formed with a lateral hole for driving a drift pin. Each shaft is not necessarily solid, and may be hollow if there is no problem such as strength.

  In order to embed the shaft, the shaft hole is processed concentrically so as to communicate the overlapping portions of both members. Of these, the first shaft is embedded in the shaft hole on the first member side, and the second A second shaft is embedded in the shaft hole on the member side. However, the boundary between both shafts does not necessarily coincide with the boundary between both members. Of course, it is not preferable that there is a gap between the shaft hole and the side surface of the shaft, and the shaft hole needs to be processed with high accuracy.

  The coupling means integrates the first shaft and the second shaft so as not to be separated, but the specific structure can be freely selected. However, it is required that the first shaft and the second shaft have the same center axis and that each shaft can rotate independently with the center axis as the origin. By configuring in this way, the first shaft and the second shaft can adjust the phase of the horizontal hole for each shaft, and even when the side surfaces of the first member and the second member are not aligned and there is an intersection angle, The drift pin can be driven by adjusting the phase of the shaft accordingly.

  The invention according to claim 2 specifies a coupling means, and the coupling means is formed on a bottom plate provided with a through hole provided on one end surface of the hollow second shaft, and on one end surface of the first shaft. It is characterized by comprising a female screw and a bolt inserted through the through hole of the second shaft and screwed into the female screw.

  In the present invention, a bolt is used as one element of the coupling means, and this bolt is inserted from the second shaft toward the first shaft. Therefore, the second shaft is hollow so that bolts can be inserted inside, and the end surface on the first shaft side has a through hole in the center so that only the screw part of the bolt can be passed and the head can be locked. It is blocked by an open bottom plate. Further, on the end face of the first shaft that is opposed, an internal thread that is screwed into the threaded portion of the bolt is processed on the central axis. Therefore, after making the end surfaces of a 1st shaft and a 2nd shaft contact, a bolt is inserted in a 2nd shaft and both shafts are integrated by screwing together in a 1st shaft. At this time, each shaft can independently rotate in the circumferential direction by adjusting the tightening force of the bolt.

  The invention according to claim 3 specifies the coupling means, and the coupling means is formed on the bottom plate provided with a through hole provided in one end surface of the hollow second shaft, and on one end surface of the first shaft. A female screw, a bolt inserted through the through hole of the second shaft and screwed into the female screw, and a nut screwed into the bolt and placed in pressure contact with the first shaft. It is a feature.

  The present invention is similar to the invention described in claim 2, but is different in that a nut is interposed between the first shaft and the second shaft. After the first shaft and the second shaft are integrated with the bolt, the bolt is subjected to a reaction force in a direction away from the female screw by tightening the nut so as to be pressed against the end surface of the first shaft. The friction between the screw and the female screw increases and the bolt becomes immobile. Therefore, the bolt can be fixed without pressing the second shaft, and each shaft can rotate smoothly.

  The invention according to claim 4 specifies the coupling means, and the coupling means is formed on the one end surface of the first shaft and formed on the one end surface of the second shaft and the convex portion having an annular groove on the side peripheral surface. It is characterized by being comprised from the recessed part fitted in the said convex part, and the latching pin inserted in the said ring groove from the side surface of a 2nd shaft.

  The convex portion formed on the one end surface of the first shaft and the concave portion formed on the one end surface of the second shaft are both fitted to restrain movement in the radial direction. The end surface of the first shaft is projected in a concentric columnar shape, and a concave portion for receiving it is formed on the end surface of the second shaft. The locking pin is inserted from the side surface of the second shaft toward the side surface of the convex portion of the first shaft, and has a function of transmitting a load acting in the axial direction. Therefore, an annular groove is formed on the side surface of the convex portion, and the tip of the locking pin is inserted therein. With this configuration, the shafts are concentrically aligned by the fitting of the convex portion and the concave portion, and the movement in the axial direction is also restrained by the locking pin, but the swivel is free.

  As in the first aspect of the present invention, the hozo pipe has a two-part structure of a first shaft and a second shaft, and both the shafts are integrated so that they can be freely rotated with respect to the circumferential direction by a coupling means. Thus, the phase of the horizontal hole for inserting the drift pin can be adjusted for each shaft. Therefore, even when the side surfaces of the first member and the second member are not aligned in parallel, it is possible to turn one of the shafts so that the lateral hole is directed perpendicular to the side surface of the member. There is no need to machine the pin holes in an oblique direction according to the angle of intersection, and the workability and accuracy are excellent. Moreover, since the first shaft and the second shaft can rotate freely, any crossing angle can be handled without any problem, high versatility and mass production are possible, and an increase in cost can be suppressed.

  As in the second aspect of the present invention, by connecting the first shaft and the second shaft using bolts, it is possible to perform a predetermined function with a simple structure and to easily suppress the manufacturing cost. . Further, as in the third aspect of the invention, the first shaft and the second shaft are coupled using a bolt and a nut as a coupling member, and after the nut is screwed to the bolt, the bolt is screwed to the female screw. Then, the bolt is fixed in a stationary state by tightening the nut against the end surface of the first shaft. Therefore, the second shaft is not tightened by bolts, and each shaft can freely rotate, and the angle adjustment for driving the drift pin can be easily realized. Moreover, like invention of Claim 4, by fitting the convex part formed in the 1st member, and the recessed part formed in the 2nd member, restraining the movement to an axial direction by a locking pin, The angle of the shaft can be easily adjusted, and the tensile load in the axial direction can be transmitted reliably.

  FIG. 1 is a perspective view showing an example of use of a fastener 30 according to the present invention. When the first member 11 (base) is laid on the linear concrete F that extends in a straight line, and the second member 21 (column) is erected on the upper surface of the first member 11, the first member is normally used. 11 and the second member 21 are generally installed so that the side surfaces thereof are aligned in parallel, but in this drawing, the side surfaces of the second member 21 are not parallel to the side surfaces of the first member 11 but are installed so as to have an intersection angle. ing. The fastener 30 includes a lower first shaft 31 and an upper second shaft 32, both of which are integrated by a coupling means, and the first shaft 31 and the second shaft 32 are separated. Never do. However, both the first shaft 31 and the second shaft 32 can be individually rotated with the central axis as the origin. Details of the coupling means are shown in FIG. Further, side holes 33 and 34 for inserting the drift pins 41 and 42 are formed on the side surfaces of the first shaft 31 and the second shaft 32. The horizontal holes 33 and 34 are formed at a total of three locations for each of the shafts 31 and 32, but the upper and lower two have the same orientation, and the middle one is orthogonal to them.

  In order to insert the fastener 30, a vertically extending shaft hole 12 is processed on the upper surface of the first member 11, and further, pin holes 13 for driving the drift pins 41 are processed at two predetermined positions. Yes. Similarly, the shaft holes 22 extending in the vertical direction from the bottom surface are processed in the second member 21, and the pin holes 23 intersecting the shaft holes 22 are processed in three orthogonal directions. Here, the pin holes 13 and 23 processed into the first member 11 and the second member 21 are perpendicular to the side surfaces of the members 11 and 21 even though the members 11 and 21 are joined at an angle of intersection. It can be easily processed with a general-purpose drill. The first shaft 31 is embedded in the shaft hole 12 of the first member 11, and the second shaft 32 is embedded in the shaft hole 22 of the second member 21. Is not necessarily coincident with the boundary between the first member 11 and the second member 21.

  The first shaft 31 and the second shaft 32 are integrated so as to be rotatable by the coupling means, and the direction of each of the lateral holes 33 and 34 can be individually changed. Therefore, when the fastener 30 is embedded in each member 11, 21, the angle of the lateral holes 33, 34 is adjusted according to the intersection angle so as to be concentric with the pin holes 13, 23. Construction is realized.

  FIG. 2 shows a state after assembling FIG. 1. The second member 21 is placed on the first member 11. The side surface of the first member 11 and the side surface of the second member 21 are the same. Has an angle of intersection. Two drift pins 41 for integrating the first member 11 and the first shaft 31 are used in only one direction, but the drift pin 42 for integrating the second member 21 and the second shaft 32 is A total of three are used in two orthogonal directions.

  FIG. 3 shows a specific example of a coupling means for integrating the first shaft 31 and the second shaft 32, FIG. 3 (A) is the invention according to claim 2, and FIG. 3 (B) is the claim. FIG. 3C is based on the invention described in claim 4. FIG. 3A shows the first shaft 31 and the second shaft 32 integrated by bolts 43. The left figure shows the components separated, and the right figure shows the components assembled. State. The first shaft 31 is a solid rod having a circular cross section, and a lateral hole 33 is formed in two orthogonal directions on its side surface, and a female screw 35 is formed in the center of its upper end surface. One of the second shafts 32 has a circular cross section having the same diameter as the first shaft 31 but is hollow, and the lower end surface is closed by a bottom plate 36 having a through hole 48 in the center, so that only the screw portion of the bolt 43 can be afforded. Can be passed. Further, the second shaft 32 is also formed with a lateral hole 34 penetrating the side surface, like the first shaft 31. The first shaft 31 and the second shaft 32 are integrated by inserting the bolt 43 into the second shaft 32, projecting the screw portion thereof downward from the bottom plate 36, and further screwing it into the female screw 35. . However, the shafts 31 and 32 can be freely rotated by adjusting the tightening force of the bolts 43.

  FIG. 3B is characterized in that the shafts 31 and 32 can be easily rotated. The shapes of the shafts 31 and 32 are exactly the same as those in FIG. 3A, but a nut 44 is sandwiched between the boundaries. . Therefore, as shown on the right side of FIG. 3B, after the nut 44 is screwed to the bolt 45, the bolt 45 is screwed to the female screw 35, and then only the nut 44 is tightened to close the upper surface of the first shaft 31. Pressure contact. Then, the screw portion of the bolt 45 is pulled up by the reaction force, and the bolt 45 and the female screw 35 are pressed against each other, and the bolt 45 is brought into an immobile state by this friction. Therefore, as shown in the center of FIG. 3B, even when the bottom plate 36 is sandwiched between the head of the bolt 45 and the nut 44, the bolt 45 can be fixed without tightening the bottom plate 36. 32 can rotate freely.

  3C shows a convex portion 37 in which the central portion of the upper end of the first shaft 31 is projected concentrically, and an annular concave portion 39 is formed on the bottom surface of the second shaft 32. This is a form in which the recess 39 is fitted. An annular groove 38 dug in a ring shape is formed on the side peripheral surface of the convex portion 37, and the locking pin 46 is inserted from the side surface of the second shaft 32 toward the annular groove 38. In order to insert the locking pin 46, a plurality of stop holes 47 are formed in the second shaft 32, and both are fixed by screws or the like. As shown on the right side of FIG. 3 (C), the shafts 31 and 32 can be freely rotated by fitting the convex portions 37 and the concave portions 39 together, and the shafts are locked by the locking pins 46 inserted into the annular grooves 38. A load acting in the direction is transmitted.

  FIG. 4 shows a state example in which members are joined by the fastener 30 according to the present invention. As shown in this figure, the base 51 and the beam 52 are arranged so as to have an angle of intersection with respect to other bases and beams, and a column 53 is arranged so as to connect both the members 51 and 52. The column 53 supports the horizontal member 54 in the middle thereof, and the column 53 and the horizontal member 54 are integrated in a T shape. For this reason, the joints at both ends of the pillar 53 indicated by the one-dot chain line circle in the figure are in a state where the side faces of the base 51 and the beam 52 have an angle of intersection with respect to the side face of the pillar 53. The fastener 30 according to the present invention is optimally used in such a place, and the base 51, the beam 52, and the column 53 do not require any special drilling or the like in the members, and are similar to the conventional hozo pipe. Construction is possible.

It is a perspective view which shows the usage example of the fastener by this invention. It is a perspective view which shows the state after assembling the 1st member and 2nd member which are shown in FIG. The specific example of the coupling | bonding means which unifies a 1st shaft and a 2nd shaft is shown, (A) is invention of Claim 2, (B) is invention of Claim 3, (C) is This is based on the invention described in claim 4. It is a perspective view which shows the example of a state which joins a member with the fastener by this invention. It is a perspective view at the time of joining a pillar and a foundation using a hozo pipe conventionally used.

Explanation of symbols

11 First member 12 Shaft hole (first member side)
13 pin hole (first member side)
21 Second member 22 Shaft hole (second member side)
23 Pin hole (second member side)
30 Fastener 31 First shaft 32 Second shaft 33 Side hole (first shaft side)
34 Horizontal hole (second shaft side)
35 Female thread 36 Bottom plate 37 Convex part 38 Annular groove 39 Concave part 41 Drift pin (first shaft side)
42 Drift pin (second shaft side)
43 Bolt 44 Nut 45 Bolt 46 Locking Pin 47 Locking Hole 48 Through-hole 51 Base 52 Beam 53 Column 54 Horizontal Material F Foundation Concrete

Claims (4)

The first member (11) and the second member (21) are embedded in shaft holes (12, 22) communicating with the overlapping portions, and integrated with the members (11, 12) via the drift pins (41, 42). Fasteners that become
A first shaft (31) having a circular cross section embedded in the shaft hole (12) of the first member (11) and having a horizontal hole (33) for inserting the drift pin (41); and the second member A second shaft (32) having a circular cross section embedded in the shaft hole (22) of (21) and formed with a lateral hole (34) for inserting the drift pin (42);
The fastener, wherein the first shaft (31) and the second shaft (32) are coupled to each other so as to be rotatable in the circumferential direction by a coupling means.   The coupling means includes a bottom plate (36) having a through hole (48) provided on one end surface of a hollow second shaft (32), and a female screw (1) formed on one end surface of the first shaft (31). 35) and a bolt (43) inserted through the through hole (48) of the second shaft (32) and screwed into the female screw (35). Fasteners.   The coupling means includes a bottom plate (36) having a through hole (48) provided on one end surface of a hollow second shaft (32), and a female screw (1) formed on one end surface of the first shaft (31). 35), a bolt (45) inserted through the through hole (48) of the second shaft (32) and screwed into the female screw (35), and screwed into the bolt (45) and the first shaft (31) 2. The fastener according to claim 1, further comprising: a nut arranged in pressure contact with the nut. The coupling means is formed on one end surface of the first shaft (31) and has a convex portion (37) having an annular groove (38) on the side peripheral surface, and formed on one end surface of the second shaft (32). A recess (39) fitted into (37) and a locking pin (46) inserted into the annular groove (38) from the side surface of the second shaft (32). Item 1. A fastener according to item 1.

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