JP4183611B2 - Wooden solid truss frame member - Google Patents

Description

  The present invention relates to a wooden three-dimensional truss frame member, and more specifically, a member used for a three-dimensional truss, a lattice beam, etc. 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. Thus, the present invention relates to a wooden solid truss frame member excellent in design.

  At present, large wooden buildings can be seen in various places, and a wide variety of buildings that can flexibly accommodate large spaces have been built based on free ideas. Various three-dimensional truss frame members are used for the construction. It has been. Conventionally used or proposed three-dimensional truss frame members are made of interpolation such as steel covered with wood, slitted joints, round steel tie rods, etc. It can be roughly divided into three types of things.

  As the first type steel material or the like simply covered with wood, as shown in FIG. 6, joint metal fittings 33 with globes 32 are attached to both ends of a wooden truss material 31, and the truss material 31 is attached to the truss material 31. A through hole 34 penetrating between both end faces along the axis is provided, and a shaft member 35 projecting from the end of the truss member 31 is inserted into the through hole 34, and both projecting end portions of the shaft member 35 are inserted. There is known one in which the above-mentioned joint fitting 33 is fixed (Japanese Utility Model Laid-Open No. 2-25602).

  However, in the case of this wooden truss frame member, particularly when the truss 31 exceeds 60 centimeters, there is a problem that it is difficult to drill the through hole 34 accurately and straightly.

  The type that slits the second type joint is currently most popular. For example, as shown in FIG. 7, mortises 36 are provided at both ends of the wooden truss member 31, and the mortises 35 are provided. Further, a metal plate 37 having a screw to be screwed into the globe 32 is inserted, and the metal plate 37 is fixed by driving a drift pin 38 from the outer surface of the truss member 31.

  In the case of this wooden truss frame member, there is also a relationship of sandwiching the metal plate 37 at the mortise 35 portion, so that the crack from the back end portion of the mortise 36 is induced and the strength of the truss structure is weakened. There is.

  The third type of round steel tie rods, etc. with an interpolating action configuration is one in which both ends of a steel pipe are crushed to form a connecting bolt hole. They are connected through bolts.

In the case of this steel pipe truss frame member, because the steel pipe is exposed, it not only does not have a beautiful appearance, it can not feel the warmth, but rather it feels cold, Not suitable for use in buildings.
Japanese Utility Model Publication No. 2-25602

  Among the above-described conventional three-dimensional truss frame members, in the case of the first and second types of wooden three-dimensional truss frame members, there was a problem that processing was difficult or damage to the truss material was likely to occur. The present invention provides a wooden three-dimensional truss frame member that does not have such a problem, that is, has a good appearance with a warm appearance, is easy to manufacture, does not easily cause damage to the truss material, and maintains sufficient strength. Let it be an issue.

  The present invention inserts a pipe filled with a bar material into the center part of both end faces of a wooden truss material, leaving a connecting part formed at one end part thereof, and penetrates the pipe from the outer surface of the truss material to drift pins. The drift pin is provided with an injection path extending in the length direction from one end surface thereof and branching in the lateral direction to open, and an adhesive is injected into the injection path and leached from the lateral branch path. Thus, the above-described problem has been solved by a wooden solid truss frame member in which the drift pin is bonded and fixed to the surrounding members.

  The connecting portion of the pipe is constituted by a fixing bolt for the glove, or is formed by drilling a bolt hole through which the connecting bolt is inserted by crushing the end of the pipe.

Typically, the drift pins are driven so that a plurality of adjacent ones are orthogonal to each other . It is preferable that a plurality of lateral branch paths of the drift pin injection path are formed. In this case, the branch path is formed in a pin hole formed in the bar material filled in the pipe and the wooden truss material. Opened to the side.

  A wooden three-dimensional truss frame member according to the present invention is fitted with a pipe filled with a rod at the center of both end faces of a wooden truss, and the pipe is fixed with a drift pin driven from the outer surface of the truss, and The drift pin is bonded and fixed to the surrounding member with an adhesive injected from the drift pin injection path, and the entire truss material is made of wood, so it has a warm appearance and a good appearance. Because it is easy to manufacture and it is not difficult to fix the pipe to the wooden truss material, the pipe fixing part of the truss material is not easily damaged, and each joint is integrated by injection of the adhesive, so the wood around the joint There is an effect that the strength is increased.

  Preferred embodiments of the present invention will be described with reference to the accompanying drawings. In the wooden three-dimensional truss frame member according to the present invention, the pipe 4 filled with the bar 9 is inserted into the center portion of the both end surfaces of the wooden truss member 1 leaving a connecting portion formed at one end thereof. Is fixed by driving the drift pin 5 through the pipe 4 from the outer surface of the truss member 1 and exposing the connecting portion from the end surface of the truss member 1.

The truss member 1 is usually a square column, but may have other shapes, for example, a cylinder, a hexagonal column, or the like. Pipe holes 2 for fitting the pipes 4 are drilled at both end faces of the truss member 1 to a depth corresponding to the length of the pipe 4, and drift pins 5 are provided on the side surfaces of the truss member 1. A plurality of pin holes 3 for driving are usually formed at appropriate intervals with different directions alternately. For example, as shown in FIGS. 1 to 4, the adjacent objects are drilled so as to be orthogonal to each other. The pin hole 3 may be provided so as to penetrate from the one side surface of the truss member 1 to the opposite side surface (see FIG. 2), or may be stopped halfway (see FIG. 3).

  The end face of the pipe 4 on the side inserted into the pipe hole 2 is fully opened, and a connecting portion is formed on the end face side exposed from the opposite pipe hole 2. In the example shown in FIGS. 1 and 2, the connecting portion is configured by forming a sleeve 6 projecting conically on the end face, and inserting a bolt 7 into the center opening portion from the inside. Since the head of the bolt 7 is locked at the inner edge of the central opening of the sleeve 6, the bolt 7 does not come out of the sleeve 6 (see FIG. 2). The bolt 7 that constitutes the connecting portion is screwed into the globe 15, and the wapper 8 is fitted and fixed to the bolt 7 for the screwing operation.

  In order to prevent the pipe 4 from being crushed when inserted into the pipe hole 2, a bar 9 made of wood, plastic, or the like is packed from the opening end of the entire surface of the pipe 4. A pin insertion port 10 communicating with a pin hole 11 penetrating the bar 9 is formed on the side surface of the pipe 4. The pipe 4 is generally cylindrical, but is not limited thereto. The pin insertion port 10 and the pin hole 11 may be formed separately in advance so as to communicate with each other, or may be formed simultaneously after the rod 9 is inserted.

  The pipe 4 to which the bolt 7 is attached and the bar 9 is filled is fixed by driving the drift pin 5 after fitting into the pipe hole 2 of the truss member 1. Then, if necessary, a wooden plug is filled in the pin hole 3 in order to conceal the drift pin 5. Needless to say, the pin hole 3 and the pin insertion port 10 are designed to be matched when the pipe 4 is fitted.

  The drift pin 5 is provided with an injection path 12 extending in the length direction from the center of one end surface. The injection path 12 is branched in the middle and / or at the end in the lateral direction, and is opened on the outer peripheral surface of the pin. The branch path 13 is formed in one place or a plurality of places, and the opening is directed to the inner peripheral surface of the pin hole 3 and / or the pin hole 11 when inserted into the pin hole 3 and the pin hole 11.

  After inserting the drift pin 5 into the pin holes 3 and 11 as described above, the adhesive is injected into the injection path 12. As the adhesive used here, an epoxy resin is optimal, but any other type of adhesive can be adopted in relation to the drift pin 5 and the surrounding member. The injected adhesive leaches out from the branch path 13 into the gap between the peripheral surface of the drift pin 5 and the pin hole 3 and the gap between the peripheral surface of the drift pin 5 and the pin hole 11. 9 and the drift pin 5 and the truss member 1 are bonded together. Thus, the truss member 1, the pipe 4 and the bar member 9 are firmly integrated via the drift pin 5.

  A large number of the above-mentioned wooden three-dimensional truss frame members are attached to one glove 15 in the same manner as the conventional one, and a three-dimensional truss or the like is constructed.

  Next, the embodiment shown in FIGS. 4 and 5 will be described. In this embodiment, only the configuration of the connecting portion is different from that of the above embodiment, and the other configurations are the same. Therefore, the description of the other components is omitted.

  The connecting portion in this embodiment is formed by crushing the end of the pipe 4 on the side protruding from the truss member 1 to form a flat portion 16 and drilling a bolt hole 17 through which the connecting bolt 18 is inserted.

  As shown in FIG. 5, the three-dimensional truss frame member in this embodiment is connected by overlapping the flat portions 16 of a plurality of three-dimensional truss frame members to be connected and inserting connecting bolts 18 from below through the respective bolt holes 17. To do. In that case, the joint member 19 is appropriately used as necessary.

  In this connected state, there is a possibility that a plurality of flat portions 16 may be complicated and unsightly, so a circular, quadrilateral or other appropriately shaped wooden connecting portion cover 20 is applied from below and secured with bolts 18. It is preferable to do so. Thus, the connecting portion where the metal member is exposed is concealed by the wooden member, and the appearance is improved.

It is a disassembled perspective view of one Embodiment of the wooden solid truss frame member based on this invention. It is a longitudinal cross-sectional view of the length direction of embodiment shown in FIG. It is a longitudinal cross-sectional view of the width direction of embodiment shown in FIG. It is a perspective view of other embodiment of the wooden solid truss frame member concerning the present invention. It is a figure which shows the connection method of embodiment shown in FIG. It is a figure which shows the structural example of the conventional solid truss frame member. It is a figure which shows the other structural example of the conventional solid truss frame member.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Truss material 2 Pipe hole 3 Pin hole 4 Pipe 5 Drift pin 6 Sleeve 7 Bolt 8 Wapper 9 Bar 10 Pin insertion port 11 Pin hole 12 Injection path 13 Branch path 15 Globe 16 Flat part 17 Bolt hole 18 Bolt 19 Joint member 20 Wooden connection cover

Claims (7)

  At the center of both ends of the wooden truss material, a pipe filled with a rod material is inserted, leaving a connecting portion formed at one end thereof, and a drift pin is driven through the pipe from the outer surface of the truss material, The drift pin is provided with an injection path that extends in the length direction from one end face thereof and branches in the lateral direction to open, injecting an adhesive into the injection path, and leaching from the lateral branch path. A wooden three-dimensional truss frame member in which a drift pin is bonded and fixed to its surrounding members.   The wooden three-dimensional truss frame member according to claim 1, wherein the connecting portion of the pipe is configured by a fixing bolt for the globe.   The wooden three-dimensional truss frame member according to claim 1, wherein the connecting portion of the pipe is formed by drilling a bolt hole into which a connecting bolt is inserted in a flat portion formed by crushing an end portion of the pipe. The drill Futopin is wooden truss framework member according to any one of claims 1 to 3 between which a plurality adjacent driven into as orthogonal.   The wooden three-dimensional truss frame member according to claim 1, wherein a plurality of lateral branch paths of the drift pin injection path are formed.   6. The wooden solid body according to claim 5, wherein a lateral branch path of the drift pin injection path is opened toward an inner surface of a pin hole formed in the bar material filled in the pipe and the wooden truss material. Truss frame member.   The wooden solid truss frame member according to claim 1, wherein the adhesive is an epoxy resin.

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