JP2009281027A - Wooden truss framework member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wooden truss framework member easily joined to a globe in a tense state and quickly and inexpensively assemblable for construction by a considerably simple configuration. <P>SOLUTION: This wooden truss framework member comprises a wooden truss 1 in which a male screw rod insertion hole 2 extending from the center of the butt end thereof inward is formed. Female screw tube insertion holes 3, 4 which extend from the lateral one side surface thereof to the other side surface and which are orthogonal to the male screw rod insertion hole 2 are formed in the wooden truss framework member. Female screw tubes 6, 7 having screw holes 8, 9 communicating with the male screw rod insertion hole 2 when a male screw rod is inserted are fitted into the female screw tube insertion holes 3, 4. The male screw rod 5 is inserted into the male screw rod insertion hole 2, and the insertion end side of the male screw rod is screwed into the screw holes 8, 9 to connect the male screw rod 5 and the female screw tubes 6, 7. Therefore, the male screw rod 5 is prevented from coming out of the male screw rod insertion hole 2, and the female screw tubes 6, 7 are prevented from coming out of the female screw tube insertion holes 3, 4. The globe 12 is assembled to the end of the male screw rod 5 which projects from the male screw rod insertion hole 2. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

The present invention is a wooden truss frame member, more specifically, a member used for a three-dimensional truss, a lattice beam or the like for constructing a building such as a truss dome having a large space such as a gymnasium, a large exhibition hall, or a public facility, The present invention relates to a wooden truss frame member using wood as a truss material.

A three-dimensional truss is used to construct a dome roof of a building having a large space such as a gymnasium, a large exhibition hall, or a public facility. A three-dimensional truss is a framework in which each node is pin-coupled and each member constitutes a triangle, and is formed into a three-dimensional structure. Conventionally, as the truss material, steel frames are often used (for example, JP-A-7-82794 and JP-A-8-30
2811).

However, recently, wooden trusses using trusses made of wood that gives people peace of mind have been put into practical use instead of steel frames. This wooden truss is constructed by connecting a large number of structural units each having a hardware 32 fixed to the globe joint 31 fixed to both ends of the wooden truss 30 (see FIG. 10).

For example, the hardware 32 is formed at the center portion of the wooden truss member 30 provided at the center portion of the sandwiching portion 34 that is fitted to the notches 33 formed on both side surfaces of the end portion of the wooden truss member 30. A long insertion portion 36 to be inserted into the slit 35 and a joint coupling means 38 having a sleeve 37 are installed on the opposite side of the insertion portion 36 of the holding portion 34.

The insertion portion 36 is provided with two pin holes, and the wooden truss member 30 is provided with a pin insertion hole 39 communicating with the pin hole. The pin is inserted from the pin insertion hole 39 through the pin hole, and epoxy resin is provided. The metal object 32 is fixed to the end portion of the wooden truss member 30 by fixing the pin by pressure injection.

JP-A-7-82794 JP-A-8-302811 JP 2003-301525 A

In the case of the above conventional wooden truss material joining method, a pin was driven into the pin insertion hole and the pin hole, and this was fixed by injecting resin. In this case, it is easy to match the pin insertion hole and the pin hole. Rather, it was time consuming and costly.

Therefore, the present invention provides a wooden truss frame member that can be easily joined to a glove in a tightened state with a relatively simple configuration, and can be assembled and constructed quickly and at low cost. Let it be an issue.

The invention according to claim 1 for solving the above-mentioned problem is provided with a wooden truss material having a male trough insertion hole having an appropriate depth extending inwardly from the center of the mouth, and the wooden truss material is provided with the same width direction. At least one female screw tube insertion hole extending from the side surface to the other side surface and orthogonal to the male screw tube insertion hole is provided, and a screw hole is provided in the female screw tube insertion hole so as to be in communication with the male screw tube insertion hole when inserted. The male screw tube is inserted into the male screw rod insertion hole, and at least both end portions of the male screw rod are inserted into the male screw rod insertion hole, and the insertion end side is screwed into the screw hole. The female screw cylinder is connected to prevent the male screw rod from coming out of the male screw rod insertion hole and the female screw tube from coming out of the female screw tube insertion hole, and the male screw rod from the male screw rod insertion hole. of Gloves end portion is wood truss frame members comprising assembled.

When providing a plurality of the female screw tube insertion holes, it is preferable to change the direction of the drilling.
The glove is assembled by screwing the end of the male screw rod protruding from the end of the wooden truss material into a tightening nut, and on the opposite side of the tightening nut, the end of a short bolt protruding from the glove. Do by screwing.

The glove is assembled using a tightening nut in which the threading direction is reversed in one half and the other half, and the tightening is performed by tightening the protruding end of the male screw rod protruding from the wooden truss. This can be done by screwing in one end of the nut and slightly screwing a short bolt protruding from the globe on the opposite side of the nut, and then turning the nut in one direction.

In addition, the glove is assembled by screwing a short bolt with a part of the short nut exposed, and projecting the side of the tightening nut opposite to the short bolt fixing side from the mouth of the wooden truss material. Screw into the projecting end of the male threaded rod, and then turn the tightening nut so that the short bolt projecting from the tightening nut abuts the tip of the short bolt to screw the short bolt into the glove. Sometimes it is done by going.

Further, in a preferred embodiment, a detent screw is screwed from the outer surface of the tightening nut so that the tip of the tightening nut hits the male screw rod or the short bolt in the tightening nut.

  The present invention is as described above, and the male screw 構成 is fixed by inserting the female screw tube into the female screw tube insertion hole and screwing the male screw 挿入 inserted from the male screw insertion hole into the screw hole with a relatively simple configuration. In addition, the male screw rod and the globe can be connected with a single tightening operation of the tightening nut, and the wooden truss can be easily joined to the globe in the tightened state. There is an effect that can be performed quickly and at low cost.

  The best mode for carrying out the present invention will be described with reference to the accompanying drawings. FIG. 1 is an exploded view showing the configuration of a wooden truss frame member according to the present invention. In the figure, reference numeral 1 denotes a wooden truss material, which is usually a square bar having a cross section, but the cross-sectional shape is not limited thereto, and a circular shape. Or a hexagon.

  In the wooden truss member 1, a male screw rod insertion hole 2 is drilled to an appropriate depth from the center part of both end faces (the end). Further, the wooden truss member 1 is provided with one or a plurality of female screw tube insertion holes 3, 4 extending from one side surface in the width direction to the other side surface and orthogonal to the male screw rod insertion hole 2. When a plurality of female screw insertion holes 3 and 4 are provided, it is preferable to change the drilling angle. In the illustrated example, the two female screw cylinder insertion holes 3 and 4 are formed by turning 90 degrees. The diameter of the female screw cylinder insertion holes 3 and 4 is designed to be larger than the diameter of the male screw rod 5 inserted into the male screw rod insertion hole 2.

  One end of the male screw rod 5 inserted into the male screw rod insertion hole 2 is exposed. In addition, female screw cylinders 6 and 7 are fitted in the female screw cylinder insertion holes 3 and 4, respectively. The female screw cylinders 6 and 7 are respectively formed with screw holes 8 and 9 that pass from one side surface to the other side surface. The diameters of the screw holes 8 and 9 are made to correspond to the diameter of the male screw rod 5. The height of the female cylinders 6 and 7 should be the same as or smaller than the width diameter of the wooden truss member 1 so that it does not protrude from the wooden truss member 1 when inserted into the female screw cylinder insertion holes 3 and 4. To do.

  In attaching the male screw rod 5 to the wooden truss member 1, first, the female screw rods 6 and 7 are inserted into the female screw tube insertion holes 3 and 4, and then the male screw rod 5 is inserted into the male screw rod insertion hole 2, The tip is screwed into the screw hole 8 of the female screw cylinder 6 on the near side. At that time, if necessary, the female cylinder 6 is brought into a floating state by an appropriate means. Then, after the male screw rod 5 has penetrated the female screw cylinder 6, it is further screwed to screw the tip into the screw hole 9 of the female screw cylinder 7 on the back side, and the female screw cylinder 7 is similarly penetrated. Thus, the male screw rod 5 is firmly fixed to the female screw cylinders 6 and 7 and cannot be removed from the male screw rod insertion hole 2.

  In the fixed state, the end of the male screw rod 5 is set so as to slightly protrude from the male screw rod insertion hole 2, and the globe 12 is attached to the protruding portion 10 via a tightening nut (high nut) 11. The globe 12 is a general one having a plurality of female screw holes 13. One half of the short bolt 14 is screwed into the female screw hole 13, and the other half of the short bolt 14 is screwed into the tightening nut 11.

  Thus, when the tightening nut 11 is rotated in the tightening direction, the male screw 5 and the short bolt 14 are pulled into the tightening nut 11 to be in a tightened state, and conversely when rotated in the loosening direction, The short bolts 14 are separated from each other and the tension is relaxed. In addition, it is preferable to fix the end plate 15 to the end of the wooden truss member 1 in order to protect the end face (the end). A circular hole for inserting the male screw rod 5 is formed at the center of the end plate 15.

  The assembly procedure of the wooden truss frame member according to the present invention having the above-described configuration will be described in more detail. First, the tightening nut 11 is screwed to the protruding portion 10 protruding from the wooden truss member 1 of the male screw rod 5 (FIG. 2). ). The screwing need not be strong. Then, the tip of the short bolt 14 of the globe 12 in which a part of the short bolt 14 is screwed into one of the female screw holes 13 is brought into contact with the opening of the tightening nut 11. At this time, if the opening end of the tightening nut 11 is tapered outwardly, the tip of the short bolt 14 can easily enter the opening of the tightening nut 11 and be screwed together.

  In this state, the tightening nut 11 is turned an appropriate amount, and after confirming that the short bolt 14 is securely screwed into the tightening nut 11 (FIG. 3), the tightening nut 11 is tightened until it hits the globe 12 and tightened. It is completed (FIG. 4). If necessary, a screw 16 between the outer side of the tightening nut 11 is screwed in until the tip of the screw 16 comes into contact with the male screw 5, so that the backlash between the tightening nut 11 and the male screw 5 can be reduced. Sticking can be prevented (FIG. 5).

  In the above embodiment, the short bolt 14 is screwed to the globe 12 in advance. However, in the embodiment shown in FIGS. 6 to 8, the short bolt 14 is screwed to the tightening nut 11 in advance. It is fixed by a set screw 16.

  In the case of this embodiment, first, the tightening nut 11 to which the short bolt 14 is attached is screwed to the protruding portion 10 of the male screw rod 5 protruding from the wooden truss material 1 (FIG. 7). Next, the globe 12 is brought into contact with the exposed portion of the short bolt 14, and the tightening nut 11 is turned to screw the short bolt 14 integrated therewith into the female screw hole of the globe 12. At this time, since the amount screwed into the globe 12 and the amount removed from the tightening nut 11 are inversely proportional, when the tightening nut 11 is tightened until it contacts the globe 12, It is necessary to set so as to secure a sufficient margin.

In yet another embodiment, one half and the other half of the tightening nut 11 are threaded into the reverse screw (FIG. 9). In this case, the protruding end portion of the male screw rod 5 is slightly screwed into one end of the tightening nut 11, and the short bolt 14 of the globe 12 is screwed into the other end. When the tightening nut 11 is turned in this state, the male screw 5 and the short bolt 14 are drawn into the tightening nut 11 and are tensioned by the same action as the turnbuckle. Further, when the tightening nut 11 is turned in the reverse direction, both the male screw 5 and the short bolt 14 come out of the tightening nut 11, and the tension is gradually relaxed.

Although the present invention has been described in some detail with respect to its most preferred embodiments, it will be apparent that a wide variety of different embodiments can be constructed without departing from the spirit and scope of the invention, the invention being defined by the appended claims. It is not restricted to the specific embodiment other than limiting in.

It is an exploded view which shows the structure of one Embodiment of the wooden truss frame member which concerns on this invention. It is a figure which shows the 1st of the assembly | attachment procedure of the wooden truss frame member shown in FIG. It is a figure which shows the 2nd of the assembly | attachment procedure of the wooden truss frame member shown in FIG. It is a figure which shows the 3rd of the assembly | attachment procedure of the wooden truss frame member shown in FIG. It is a figure which shows the 4th of the assembly | attachment procedure of the wooden truss frame member shown in FIG. It is an exploded view which shows the structure of other embodiment of the wooden truss frame member which concerns on this invention. It is a figure which shows the 1st of the assembly | attachment procedure of the wooden truss frame member shown in FIG. It is a figure which shows the 2nd of the assembly | attachment procedure of the wooden truss frame member shown in FIG. It is an exploded view which shows the structure of other embodiment of the wooden truss frame member which concerns on this invention. It is a figure which shows the structural example of the conventional wooden truss frame member.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Wooden truss material 2 Male thread rod insertion hole 3, 4 Female thread cylinder insertion hole 5 Male thread collar 6, 7 Female thread cylinder 8, 9 Screw hole 10 Projection part 11 Tightening nut 12 Globe 13 Female thread hole 14 Short bolt 15 Wood end plate 16 Non-rotation screw

Claims (6)

  A wooden truss member having an appropriate depth of male screw rod insertion hole extending inward from the center of the mouth is provided, and the wooden truss member extends from one side surface in the width direction to the other side surface and is orthogonal to the male screw rod insertion hole. At least one internal thread cylinder insertion hole is provided, and an internal thread cylinder in which a thread hole is formed in the internal thread cylinder insertion hole so as to communicate with the external thread collar insertion hole at the time of insertion is fitted. The male screw 杆 and the female screw cylinder are connected by inserting a male screw 切 っ with male screws cut at least at both ends into the insertion hole and screwing the insertion end side into the screw hole of the female screw tube. Of the male screw tube and the female screw tube from the female screw tube insertion hole are prevented, and a glove is assembled to the protruding end portion of the male screw tube from the male screw tube insertion hole. Wooden truss frame member.   2. The wooden truss frame member according to claim 1, wherein a plurality of the female screw tube insertion holes are formed by changing a drilling direction.   The assembling of the glove is performed by screwing the projecting end portion of the male screw rod projecting from the mouth of the wooden truss material into a tightening nut, and screwing a short bolt projecting from the glove on the opposite side of the tightening nut. The wooden truss frame member according to claim 1 or 2. The glove is assembled using a tightening nut in which the threading direction is reversed in one half and the other half, and the tightening is performed by tightening the protruding end of the male screw rod protruding from the wooden truss. The screw nut is slightly screwed into one end portion, and a short bolt protruding from the glove is screwed a little on the opposite side of the clamp nut, and then the clamp nut is turned in one direction. The wooden truss frame member according to 2.   Assembling the glove is done by screwing a short bolt with a part of the short nut exposed to the nut, and projecting the side of the tightening nut opposite the short bolt fixing side from the mouth of the wooden truss material. Screw the short bolt into the glove by screwing it into the protruding end of the male screw rod and then turning the tightening nut with the short bolt protruding from the tightening nut in contact with the globe. The wooden truss frame member according to claim 1 or 2, wherein The wooden truss frame member according to any one of claims 3 to 5, wherein a non-rotating screw is screwed from an outer surface of the tightening nut so that a tip thereof contacts the male screw rod or the short bolt in the tightening nut.

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