JP4141925B2 - Equipment for joining horizontal members in wooden buildings - Google Patents

Description

  The present invention relates to a horizontal member joining apparatus in a wooden building, which is applied to join a horizontal member such as a beam or girder of a wooden building to a structural member such as a column or a trunk difference.

  A bolt head having a tapered portion that gradually decreases in diameter in the direction of the structural material is projected from a joint surface of a structural material such as a column or a trunk to a horizontal member such as a beam or a girder. An engaging groove to be engaged is provided on an end surface of the horizontal member that abuts on the joint surface, and the horizontal member has a structure in which an insertion hole for a latch hook that is hooked to the tapered portion is provided horizontally. There is something (for example, Patent Document 1)

JP 2002-146918 A

  In the conventional example, the latching rod is not detached from the bolt head (so that the horizontal member is not detached from the structural material which is a pillar), or the latching rod, that is, the horizontal member is pulled toward the structural material. Since the head portion of the bolt has a special shape, the bolt must be specially facilitated. Also, in the conventional example, the bolt and nut are screwed together and assembled to the structural material side so that the head side protrudes from the joint surface, so that the protruding amount of the bolt head from the joint surface is constant. Since the holding means for projecting the bolt head from the joint surface is not provided, when the horizontal member is combined with the structural material, the bolt head is retracted to the structural material side, resulting in inconvenience. In some cases.

  The present invention was devised to eliminate such drawbacks of the conventional example and to provide a horizontal member joining apparatus that can be implemented at a relatively low cost by making it possible to use commercially available bolts and the like.

  A receiving protrusion having a tapered portion that gradually decreases in diameter in the direction of the structural material is projected from a joint surface of the structural material such as a column or a body difference with a horizontal member such as a beam or a girder. An engaging groove for engaging a child is provided on an end surface of the horizontal member that contacts the joint surface, and a fitting rod insertion hole for a hook that is hooked on the tapered portion is provided in the horizontal member. An apparatus for joining horizontal members in a wooden building, wherein the bolt or screw is passed between the structural material and a nut screwed into a head or a screw of a bolt assembled to the structural material. The receiving protrusion is configured by interposing a tube, and the tapered portion is provided in the receiving tube.

  According to the present invention, it is possible to provide a device capable of reliably joining the horizontal member to the structural member. Of course, the receiving protrusion is formed by passing the bolt or the screw through the receiving tube. Alternatively, a commercially available screw can be used, so that it is not necessary to prepare a bolt having a special shape as in the conventional example, and the protruding amount of the receiving projection from the joint surface of the structural material is constant. Therefore, the combination of the horizontal member and the structural member can be performed without any trouble.

  The drawings show an embodiment of a joining apparatus for horizontal members in a wooden building according to the present invention, FIG. 1 is a longitudinal sectional view, FIG. 2 is a partially enlarged view of FIG. 1, FIG. 3 is a transverse sectional view, and FIG. FIG. 5 is a cross-sectional view of the second embodiment.

  In the figure, reference numeral 1 denotes a pillar, and a receiving protrusion 3 is vertically arranged on the joint surface 1 a of the pillar 1 with the horizontal member 2.

  The receiving protrusion 3 is a bolt (commercially available hexagon bolt) that is passed through a pair of washers 5 and 6 and a receiving cylinder 7 interposed between the washers 5 and 6 in a through-hole 4 provided in the column 1. 8) is passed through from the side of the joining surface 1a, and a nut 9 is screwed and tightened to the tip of the bolt 8 protruding from the other side 1b of the column 1 opposite to the joining surface 1a. A head 8a of the bolt 8 that projects between the washer 5 and 6 through which the bolt 8 passes, the receiving cylinder 7 that is interposed between the washers 5 and 6, and the pillar 1 that holds them. It is composed of

  The receiving cylinder 7 constituting the receiving protrusion 3 is configured such that one end side is a taper portion 7a and the other end side straight cylinder portion 7b are configured such that one end is a maximum diameter portion and the diameter is gradually reduced in the other end direction. The taper portion 7a side is arranged on the bolt head 8a side, and the hooking rod 10 fitted and inserted into the horizontal member 2 is hooked (placed) on the taper portion 7a. It moves to the column 1 side along the inclination, and the horizontal member 2 is moved to the column 1 side, that is, attracted accordingly, so that a stable joined state of the column 1 and the horizontal member 2 can be obtained. It is.

  The horizontal member 2 includes an engagement groove 11 provided vertically on an end surface 2a that abuts (joins) the joint surface 1a of the column 1, and the engagement groove 11 has a rectangular shape in cross section and is large on the opening end side. It is composed of a diameter portion 11a and small diameter portions 11b and 11b which are communicated in the form of slits at both corners of the deep wall of the large diameter portion 11a, and the proximal end side is inserted into the small diameter portion 11b of the engagement groove 11 In this manner, the reinforcing plate 12 is overlapped on the inner side of the side wall of the engaging groove 11 (large diameter portion 11a), and is horizontally mounted in the through holes 13, 13, 13 provided in the longitudinal direction on the base end side of the reinforcing plate 12. A pair of the reinforcing plates is inserted by inserting and inserting a fixing rod (drift pin) 15 through fitting insertion holes 14, 14, 14 provided so as to cross the engagement groove small diameter portions 11 b, 11 b at the ends of the material 2. 12 and 12 are opposed to each other in the engagement groove 1 with a gap 18 (having a sufficient width to accommodate the receiving protrusion 3) 18 therebetween. A pair of upper and lower three sets are fitted at a position through the receiving protrusion 3 when engaged in the gap 18 (engagement groove 11) so as to cross the engagement groove 11, that is, the gap 18 Insertion holes 16 and 16 'are provided.

  The insertion holes 16, 16 ′ are formed by aligning the through hole provided at the end of the horizontal member 2 so as to cross the large diameter portion 11 a of the engaging groove 11 and the through hole provided on the reinforcing plate 12 side. The above-mentioned latching rod 10 is provided in the upper fitting insertion hole 16, and the locking rod 17 is appropriately provided in the lower fitting insertion hole 16 '(in FIG. 1, only the lowermost fitting insertion hole 16' is provided with the locking rod 17). However, the locking rods may be inserted into the other lower insertion holes 16 'and 16').

  When the horizontal member 2 is lowered along the joining surface 1a of the column 1 to join the horizontal member 2 to the column 1, the locking rod 10 is inserted into the uppermost insertion hole 16 of the horizontal member 2. Is inserted and driven into the end of the horizontal member 2 so that the hooking rod 10 is placed horizontally, and the engaging groove 11 through the gap 13 at the end of the horizontal member 2 are directly above the receiving protrusion 3. When positioned and lowered, the horizontal member 2 (the end thereof) is lowered while relatively engaging the receiving protrusion 3 in the gap 18 between the engaging groove 11, that is, the reinforcing plates 12 and 12, Along with this lowering, the latching rod 10 installed on the upper side of the end of the horizontal member 2 is also lowered, and finally the receiving of the uppermost receiving protrusion 3 protruding from the joint surface 1a of the column 1 is received. The horizontal member 2 is received by the support cylinder 7 and temporarily joined to the column 1 by the latching relationship of the latch rod 10 with respect to the receiving projection 3 (receiving cylinder 7).

  At the time of this temporary joining (when the retaining rod 10 is placed on the receiving protrusion 3), the retaining rod 10 moves in the direction of the column 1 due to the inclination of the tapered portion 7a of the receiving tube 7. Along with this, the horizontal member 2 is also moved and pulled toward the column 1 side, and a stable (temporary) joined state can be obtained. Incidentally, it is needless to say that the relative positional relationship of each member is set and processed so that this drawing operation is performed.

  In this temporarily joined state, the other retaining rod 10 is fitted in the upper insertion hole 16 of each set, and the locking rod 17 is fitted in the lowermost lower insertion hole 16 '. By inserting and driving (at this time, the latching rod 10 and the locking rod 17 are pressed against the receiving cylinder 7 and an external force in the rotational direction is applied to the receiving cylinder 7. Since the external force does not act on the side of the bolt 8 that penetrates the cylinder 7, the tightening state of the bolt 8 by the nut 9 does not loosen. The horizontal member 2 is joined to the column 1.

  When the latch rod 10 or the locking rod 17 is driven, the rods 10 and 17 forcibly contact and press the taper portion 7a (the outer peripheral surface thereof) of the receiving cylinder 7 (with a positional relationship or shape). Therefore, the drawing operation of the horizontal member 2 toward the column 1 is performed.

  In the joined state, the latching rod 10 is latched by the receiving projection 3 on the column 1 side, and the receiving projection 3 receives a load on the horizontal member 2 side through the latching rod 10. Further, the locking rod 17 is prevented from rising along the column 1 of the horizontal member 2 by contacting the lower edge of the receiving tube taper portion 7a of the lowermost receiving protrusion 3 and each latching rod 10 and (For example, in the case of the lowest receiving protrusion 3, the locking rod 10 is positioned in contact with the upper edge side of the receiving cylinder taper portion 7 a). The lowermost receiving protrusion 3 is sandwiched between the latching rod 10 and the locking rod 17 in contact with the lower edge of the receiving cylinder taper portion 7a of the lowermost receiving protrusion 3), the horizontal member The separation from the second pillar 1 is prevented.

  One washer 5 of the embodiment is for preventing the receiving cylinder 7 of the receiving protrusion 3 from being destroyed into the joint surface 1a of the column 1 by tightening with the nut 9, and as a result, each receiving protrusion 3 , 3 and 3 are kept constant, and the relative positional relationship of each member such as the relationship with the fitting insertion holes 16 and 16 'can be made as designed.

  In addition, as shown in FIG. 5, the receiving protrusion 3 is formed by combining the washers 5 and 6 and the receiving cylinder 7 on the tip end side of the bolt 8 and using a nut 8 'instead of the bolt head 8a. However, another horizontal member 3 ′ that is opposed to the horizontal member 3 via the column 1 may be joined to the column 1. In this case, detailed description of the combination relationship between the pillar 1, the receiving protrusion 3 and the horizontal member 3 'is omitted, but the remaining points are the same as those in the first embodiment described with reference to FIGS. It is.

  Instead of the bolt 8 of FIG. 5, a screw without a head at both ends may be used, and a nut as shown in FIG. 5 may be used for the screw.

  Needless to say, the screw rod (leg rod) of the bolt constitutes the “screw” in the claims.

  Further, the horizontal member 2 is raised along the joining surface 1a of the column 1 so that the receiving protrusions 3, 3, and 3 are accommodated in the engaging groove 11 (gap 18). The locking rod 17 that is pre-inserted in 16 ′ and assembled to the horizontal member 2 is locked to the lowest receiving protrusion 3, and then the latching rod 10 is inserted into the insertion hole 16. A joining state as shown in FIG. 1 may be obtained (by fitting and assembling the locking rod 17 into the fitting hole 16 ′ if necessary). The horizontal member 2 is raised and engaged with the receiving protrusion 3 and the engaging groove 11 or the like. This method is used when a new horizontal member is joined to the column instead of the existing horizontal member, and is replaced. In this state, after joining the column 1 of the newly installed horizontal member in the state shown in FIG. 1, a method of cutting and removing the old horizontal member positioned above the newly installed horizontal member can be employed.

FIG. The partially expanded view of FIG. FIG. The perspective view of the structural material of a receiving protrusion. The cross-sectional view of the second embodiment.

Explanation of symbols

1 Pillar 2 Horizontal member 3 Receiving protrusion 7 Receiving cylinder 7b Tapered portion 8 Bolt 10 Hook 16 Insertion hole

Claims (1)

A receiving protrusion having a tapered portion that gradually decreases in diameter in the direction of the structural material is projected from a joint surface of the structural material such as a column or a body difference with a horizontal member such as a beam or a girder. An engaging groove for engaging a child is provided on an end surface of the horizontal member that contacts the joint surface, and a fitting rod insertion hole for a hook that is hooked on the tapered portion is provided in the horizontal member. In a joining apparatus for horizontal members in a wooden building, a receiving cylinder in which the bolt or screw is passed between the structural member and a nut screwed into a head of the bolt or a screw assembled to the structural member. An apparatus for joining horizontal members in a wooden building, wherein the receiving protrusion is configured to be interposed, and the tapered portion is provided in the receiving cylinder.

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