JP4950602B2 - Truss frame members - Google Patents

Description

  The present invention relates to a 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. Related to truss frame members using wooden truss

  There is a truss frame member in which both ends of a steel pipe are crushed to form connecting bolt holes. This truss frame member is connected through a bolt to a connecting bolt hole by overlapping a plurality of ends.

  In the case of this steel pipe truss frame member, since the steel pipe is exposed, not only is there no appearance beauty, but the warmth cannot be felt, but rather the cold is remembered.

  Therefore, the applicant of the present application filled a bar 49 in the center of both ends of the wooden truss member 41 as a wooden truss frame member that looks good with a warm appearance, is easy to manufacture, and is less likely to damage the truss member. The pipe 44 is inserted, the pin holes 43 and 50 penetrating the pipe 44 and the truss member 41 are aligned with each other, and the draft pin 45 is driven therein to fix the pipe 44 in the truss member 41. A wooden truss frame member that can hold the fixing bolt 47 to the globe 52 at the exposed portion from the end face has been proposed (Japanese Patent Laid-Open No. 2005-171498, FIG. 7).

  In the case of this wooden truss frame member, as described above, a plurality of pin holes 43 for driving the drift pins 45 into the side surface of the truss member 41 are previously drilled by alternately changing the driving direction. In this case, a pin hole 50 penetrating through the bar 49 for driving the drift pin 45 is provided in advance.

  In this case, the pin hole 43 and the pin hole 50 are naturally designed and drilled so as to match each other when the pipe 44 is inserted into the insertion hole 42. If they are integrated, a larger error occurs, which hinders the driving of the drift pin 45. Further, the moisture content of the wood also changes due to changes in temperature and humidity, and the pin holes 43 and the pin holes 50 often do not match because they expand and contract or warp. Therefore, it is conceivable that the pin hole 43 and the pin hole 50 are perforated larger, but in such a case, it causes a looseness of the skeleton.

Japanese Utility Model Publication No. 2-25602 JP 2005-171498 A

  The present invention was made to eliminate the problems in the above-mentioned wooden truss frame members, and even if an error occurs in the wooden truss material due to changes in temperature, humidity, etc., the glove joint is tightened without loosening. It is an object of the present invention to provide a truss frame member that can be tightened and does not rattle the frame.

The invention according to claim 1 for solving the above-described problems includes a wooden truss member, a rod-shaped hardware inserted and fixed in an insertion hole formed in an end surface of the truss member, and two bolts. Then, one of the bolts is fixed to the end face of the truss member by being screwed into a female screw hole formed in the rod-shaped metal object, and the other bolt is screwed into the globe joint, whereby the truss member is attached to the globe. It consists of a joint fitting that joins the joint,
The joint fitting includes a fixing bolt that is screwed to the rod-shaped hardware, a flat base that is integrated with the fixing bolt and abuts against an end surface of the truss member, and a cylindrical cap that is fixed to the base. The head includes a joint bolt for screwing a glove joint screwed in the cap and rotatably held by the cap, and a tightening sleeve for loosely inserting the joint bolt. Is formed with a long hole for locking a pin installed on the joining bolt,
A plurality of pin holes for driving drift pins into the truss member are formed through the insertion hole, and pin holes corresponding to the pin holes are formed in the rod-shaped hardware. The pin holes of the rod-shaped hardware are A truss frame member characterized by being larger than a pin hole of the truss material.

Preferably, the rod-shaped hardware and the pin holes of the truss member are alternately formed in different directions.

Preferably, an adhesive filling path for injecting an adhesive into a gap between the drift pin and the rod-shaped hardware and the truss member is formed in the drift pin.

  The truss frame member according to the present invention is as described above, and in particular, since the pin hole of the rod-shaped hardware is larger than the pin hole of the truss member, it is easy to drive in the drift pin, and accompanying the screwing of the joining metal fitting The rod-shaped hardware is pulled out and will not rattle. Therefore, even if an error occurs in the wooden truss due to changes in temperature or humidity, it can be tightened without loosening the glove joint, it can be tightened, and the frame will be loose. There is an effect that there is no.

  Preferred embodiments of the present invention will be described with reference to the accompanying drawings. The truss frame member according to the present invention shown in FIG. 1 is fixed to the end surface of the truss member 1 by being connected to the truss member 1, the rod-like metal member 2 inserted into the truss member 1, and the rod-like member 2. , And a joint fitting 3 connected to the globe joint 4.

  The truss member 1 is made of wood and is usually a quadrangular prism, but may have other shapes such as a cylinder, a hexagonal column, or the like. An insertion hole 5 for inserting the rod-shaped hardware 2 in the length direction is formed in the center of both end surfaces of the truss member 1. The depth of the insertion hole 5 corresponds to the length of the rod-shaped hardware 2.

  The rod-shaped hardware 2 is usually a steel bar, an aluminum bar or other metal bar, and is often circular in cross section, but is not limited thereto. The truss member 1 is provided with a plurality of pin holes 6 extending from one side to the other side in a direction perpendicular to the length direction. Usually, the pin holes 6 are formed by alternately changing directions (90 degrees shifted). Also, a plurality of pin holes 7 are penetratingly formed in the rod-shaped hardware 2 so as to correspond to the pin holes 6 when inserted into the insertion holes 2 (see FIG. 2). The pin hole 7 is formed larger than the pin hole 6. When the rod-shaped hardware 2 is inserted into the insertion hole 5 and fixed thereto, the drift pin 8 is driven from the pin hole 6 through the pin hole 7.

  In general, the drift pin 8 is provided with an adhesive filling path 18 extending in the length direction from the center of one end surface thereof, and branching path that branches in the lateral direction and opens to the outer peripheral surface of the pin in the middle and / or the end thereof. 18a is formed. Then, after the drift pin 8 is driven as described above, the adhesive is injected into the adhesive filling path 18. The injected adhesive is leached into the gap between the peripheral surface of the drift pin 8 and the surrounding member from the branch path 18a, and the drift pin 8 and the rod-shaped hardware 2 and the drift pin 8 and the truss member 1 are bonded to each other. Integrated into

  A female screw hole 9 is formed in one end surface (in some cases, both end surfaces) of the rod-shaped hardware 2, and a fixing bolt 10 of the joint fitting 3 is screwed into the female screw hole 9.

  The joining metal fitting 3 includes a base 11 that is integrated with the fixing bolt 10 and abuts against an end surface of the truss member 1, a cap 12 that is fixed to the base 11, a head that is locked to the cap 12, and a fastening sleeve 13. And a joining bolt 14 that is rotated through the joint bolt 14.

  The fixing bolt 10 is welded to the base 11 with its threaded portion protruding, and the cap 12 is welded to the base 11 so as to cover the head of the fixing bolt 10, thus integrating these three components.

  The joining bolt 14 has its head locked in the cap 12 and is rotatably held in a state where its threaded portion protrudes from the cap 12. A tightening sleeve 13 is rotatably mounted on the protruding portion of the joining bolt 14. The fastening sleeve 13 is formed with a long hole 15 that is long in the axial direction of the joining bolt 14, and the pin 16 is fixed to the threaded portion of the joining bolt 14 through the long hole 15 so as to slightly protrude from the elongated hole 15. The

  In order to assemble the truss frame member according to the present invention, first, the rod-shaped hardware 2 is inserted into the insertion hole 5 so that the pin hole 6 and the pin hole 7 correspond to each other, and the drift pin 8 is driven from the pin hole 6. Since the pin hole 7 is drilled larger than the pin hole 6, the hole alignment at the time of this driving operation is easy and the operation can be performed without difficulty. As described above, when the pin hole 7 is larger than the pin hole 6, the rod-shaped hardware 2 can be slightly moved in the insertion hole 5 even after the drift pin 8 is driven.

  Next, holding the cap 3, the fixing bolt 10 is screwed into the female screw hole 9 of the rod-shaped hardware 2. Eventually, the base 11 slidably contacts the end surface of the truss member 1 while rotating. Therefore, when the screw 11 is further tightened, the bar-shaped hardware 2 is pulled up by a movable amount and tightened strongly, and the base 11 is strongly tightened against the end surface of the truss member 1. The cap 3 is difficult to rotate. Therefore, the base 11 is completely fixed to the end surface of the truss member 1 with screws 17 and screws.

  As in the conventional case, a plurality of truss frame members assembled as described above are assembled to one glove joint 4 and a desired three-dimensional truss, lattice beam, and the like are assembled (see FIGS. 4 and 5). In assembling to the globe joint 4, the tip of the connecting bolt 14 is applied to an arbitrary female screw hole 4 a of the globe joint 4, and the tightening sleeve 13 is rotated. As a result, the connecting bolt 14 is rotated via the pin 16 engaged with the long hole 15 of the tightening sleeve 13 and screwed into the female screw hole 4a.

  When the skeleton is loosened, the tightening sleeve 13 is similarly tightened. Thus, a solid three-dimensional truss without rattling is completed.

  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 a fragmentary sectional view which shows the structural example of the truss frame member which concerns on this invention. It is a disassembled perspective view which shows the structural example of the truss frame member which concerns on this invention. It is a figure which shows the structural example of the drift pin in the truss frame member which concerns on this invention. It is a perspective view which shows the structural example of the joining metal fitting in the truss frame member which concerns on this invention. It is a perspective view which shows the use condition of the truss frame member which concerns on this invention. It is a perspective view which shows the use condition of the truss frame member which concerns on this invention. It is a longitudinal cross-sectional view which shows the structure of the conventional wooden truss frame member.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Truss material 2 Bar-shaped metal object 3 Joint metal fitting 4 Globe joint 5 Insertion hole 6, 7 Pin hole 8 Drift pin 9 Female thread hole 10 Fixing bolt 11 Base 12 Cap 13 Tightening sleeve 14 Connection bolt 15 Long hole 16 Pin 17 Screw 18 Adhesive Filling path 18a Branch path

Claims (3)

A wooden truss material, a rod-shaped hardware inserted and fixed in an insertion hole formed in the end surface of the truss material, and two bolts, one of which is a female screw hole formed in the rod-shaped hardware It is fixed to the end face of the truss material by being screwed into the joint, and the other bolt is composed of a joint fitting for joining the truss material to the globe joint by being screwed into the globe joint,
The joint fitting includes a fixing bolt that is screwed to the rod-shaped hardware, a flat base that is integrated with the fixing bolt and abuts against an end surface of the truss member, and a cylindrical cap that is fixed to the base. The head includes a joint bolt for screwing a glove joint screwed in the cap and rotatably held by the cap, and a tightening sleeve for loosely inserting the joint bolt. Is formed with a long hole for locking a pin installed on the joining bolt,
A plurality of pin holes for driving drift pins into the truss member are formed through the insertion hole, and pin holes corresponding to the pin holes are formed in the rod-shaped hardware. The pin holes of the rod-shaped hardware are A truss frame member characterized by being larger than a pin hole of the truss material.   The truss frame member according to claim 1, wherein the rod-shaped hardware and the pin hole of the truss member are alternately formed in different directions.   The truss frame member according to claim 1, wherein an adhesive filling path for injecting an adhesive into a gap between the drift pin and the rod-shaped hardware and the truss member is formed in the drift pin.

Images