JP3886410B2 - Horizontal material joining device - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a horizontal member joining apparatus that is applied to join horizontal members such as beams and girders of a wooden building to structural members such as columns and trunks.
[0002]
[Prior art]
As a system for joining the horizontal member to the structural material, for example, a joint metal system described in Japanese Utility Model Publication No. 4-20503 is becoming mainstream instead of the so-called tenon joining system.
[0003]
In this conventional example, a support plate is provided in the horizontal direction on the surface of the substrate that is fitted into the concave portion provided in the structural material and fastened to the structural material, and an insertion plate is provided in the vertical direction, and provided on the horizontal member side. The insertion plate is relatively inserted into the slit, the end of the horizontal member is placed on the support plate, and the horizontal member is fixed to the horizontal member and the insertion plate with a pin. It joins to a structural material.
[0004]
[Problems to be solved by the invention]
Since the conventional example uses a joining bracket having a complicated structure in which a support plate is provided in the horizontal direction and a fitting plate is provided in the vertical direction on the surface of the substrate, the manufacturing or handling of the joining bracket is performed. The relationship is not always satisfactory.
[0005]
The present invention has been devised for the purpose of providing a joining device that can simplify the joint fitting as much as possible and reduce the cost.
[0006]
[Means for Solving the Problems]
An engagement groove of a lower end opening in which an assembly piece and a locking piece connected to the tip of the assembly piece constitute a joint metal piece, and the pair of joint metal pieces are vertically provided on an end surface of a horizontal member such as a beam. The assembly piece is attached to the end of the horizontal member in such a manner that the assembly piece is overlapped on the side wall and the locking piece is opposed to each other with a gap therebetween. A first protrusion with a head is installed between the upper part on the front end side that overlaps with the locking piece through the horizontal member, and receives the hook in the intermediate portion through the gap. An appropriate number of second protrusions with heads interposed between the assembly pieces in a state of passing through the gaps below the first protrusions, and a structural member such as a column or trunk A second hook that protrudes on the side surface and latches on an intermediate portion of the second protrusion, and a latch that engages with a lower edge of one or both of the first protrusion and the second protrusion. Each of perching The fitting means is composed of an assembly piece and an engagement piece that overlaps and overlaps the tip of the assembly piece with a basic means that the insertion hole is provided on the side surface of the end portion of the horizontal member. By doing so, the contact area of the locking piece with the first and second protrusions can be increased, and the rattling can be reduced. In other words, the load can be applied by two plates of the assembly piece and the locking piece. Therefore, the joining strength can be increased, and the followability to the protrusion can be improved by utilizing the spring function of the locking piece. A taper edge having a gradually increasing diameter in the tip direction of the head is provided on the peripheral side of the rear end of each head of the first protrusion and the second protrusion, and the first edge and the second protrusion are arranged at positions where they contact the taper edge. By adopting a configuration in which all or a part of the first and second hooks, the hooks and the locking pieces are arranged, the locking pieces have a spring function and the horizontal member is pulled toward the structural material. Can be performed reliably.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
The drawings show an embodiment of a horizontal member joining apparatus according to the present invention. FIG. 1 is a longitudinal sectional view, FIG. 2 is a transverse sectional view, FIG. 3 is a partially enlarged view of FIG. FIG. 5 is a partial cross-sectional view of the joint fitting, FIG. 6 is a perspective view of the joint fitting, FIG. 7 is a perspective view of the second embodiment of the joint fitting, and FIG. FIG. 9 is a partial enlarged cross-sectional view using the joint fitting of the third embodiment.
[0008]
The joining apparatus shown as an embodiment is a horizontal member (the embodiment is a beam but may be a girder). A pair of joint hardware A and A is attached (fixed) to one side, and the joint hardware A and a structural material (Example) Is a pillar, but it may be a trunk difference) The first and second protrusions 3 and 4 provided on the side 2 are attached to the horizontal member 1 through the joint A and the latches 11 and 11A They are assembled with each other using a fastener 16 and the horizontal member 1 is joined to the structural member 2.
[0009]
The metal joint A is composed of a vertically rectangular assembly piece 5 and a locking piece 6 arranged in a folded manner at the tip of the assembly piece 5, and the tip of the assembly piece 5 and the locking piece 6 are connected to each other. A pair of through-holes 7, 7, 7, 7, 7, 7 are provided so as to penetrate, and three through-holes 7A, 7A, 7A are provided vertically symmetrically at the rear end portion to select the left and right sides. (A pair of metal fittings A and A attached to the horizontal member 1 have the same form as each other).
[0010]
The separation width between the pair of through-holes 7 and 7 is made substantially equal to the diameter of the middle part of the protrusions 3 and 4 and is smaller than the diameter of the heads of the protrusions 3 and 4. Therefore, the horizontal member 1 can cope with the tensile load applied by fitting the latching rods 11, 11 </ b> A or the locking rods 16 into the pair of through holes 7, 7.
[0011]
Further, the joining hardware A of the embodiment is intended to reduce the manufacturing cost and inventory management cost of the joining hardware A so as to be applicable to either the left or right side facing the end surface 1a of the horizontal member 1. However, if these points are ignored, there is no inconvenience even if a joint metal (for example, a through hole or a through hole 7A position is provided asymmetrically in the vertical direction) is used for each of the left and right sides.
[0012]
In addition, as for the said one pair of three through-holes 7, 7, 7, 7, 7, 7, the upper side thing is always used in each group, and a lower side thing may be always used, but as shown in FIG. In the embodiment, the lower side of the lowest group (of the joint hardware A in which the application direction is determined by selecting the left and right sides) is used.
[0013]
On the side surface of the end portion 1 ′ of the horizontal member 1, the first fitting is performed at a position that coincides with the upper one 7 in the through holes 7, 7 of each set provided on the tip end side of the joint metal A. Insertion holes 8, 8, 8 are provided, and the lowermost first insertion insertion hole 8 (indicated by reference numeral 8 a for convenience) in the first insertion insertion holes 8, 8, 8 is provided below the insertion insertion hole 8. The other through-holes 7 (indicated by reference numeral 7a for convenience) and the corresponding lower through-holes 7 (indicated by reference numeral 7b for convenience) corresponding to the corresponding through-holes 7 (indicated by reference numeral 8a) While providing the 1st insertion hole 8 (it shows with the code | symbol 8b for convenience), the through-hole 7A, 7A provided in the rear-end part side of the said assembly piece 5 in the rear-end side of the side surface of the said end part 1 ', Second fitting insertion holes 8A, 8A, 8A are laterally provided at positions corresponding to 7A.
[0014]
Further, the end surface 1a of the horizontal member 1 is provided with an engaging groove (vertical groove) 9 having a lower end opening in a direction intersecting with the fitting insertion holes 8 and 8A, and the engaging groove 9 is provided on the structural material 2 side. A pair of grooves 9a having a depth that can be engaged with the projecting first and second protrusions 3 and 4 and the corners of the inner wall of the groove 9a are partially extended. Engage the pair of metal fittings A and A, which are composed of slit portions 9b and 9b and select the direction of the engagement groove 9, so that the assembly piece 5 overlaps the side wall of the engagement groove 9. As described above, the horizontal member 1 (the end 1 ′ thereof) is fixed. That is, the metal fitting A is provided on the rear end side of the assembly piece 5 so that the assembly piece 5 part is fitted into the slit part 9b of the engagement groove 9 and the locking piece 6 part is arranged in the groove part 9a. The through hole 7 and the first fitting insertion holes 8 are made to coincide with each other, and the through hole 7 and the second fitting insertion hole 8A provided on the side of the horizontal member 2 are made to coincide with each other. The first latching rod 11 which is the highest latching rod composed of drift pins is driven into the topmost one of them, and is inserted and fixed to the end of the horizontal member 1. The end surface 1 a of the horizontal member 1 On the side, a gap 12 is formed that is folded back from the assembly pieces 5 and 5 in the direction opposite to each other and is formed of opposing locking pieces 6 and 6, and is orthogonal to (crosses) the gap 12. In this way, the first latch bar 11 is arranged.
[0015]
The first and second protrusions 3, 4 pass through the structural material 2, and are on the head side of a bolt rod 15 attached by screwing a nut 14 to a screw portion 13 protruding from the structural material 2. And arranged in the longitudinal direction on the side surface of the structural member 2 (the surface facing the horizontal member 1) with the positional relationship relatively set with respect to the gap 12, the through hole 7 or the first fitting insertion hole 8. The first protrusion 3 is the first retaining rod 11 (the uppermost through hole 7 and the first fitting insertion hole 8), and the second protrusion 4 is the other through hole 7 except the uppermost one. (7a, 7b) and the other first fitting insertion holes 8 (8a, 8b) other than the uppermost one are projected from the structural member 2 so as to coincide with each other.
[0016]
Then, the rear ends of the heads of the first and second protrusions 3 and 4 (in the embodiment, the same as the heads of the bolt rods 15) are formed into a truncated cone shape. Are provided with tapered edges 3 ′ and 4 ′ that gradually increase in diameter toward the tip of the head, and the heads of the protrusions 3 and 4 have a diameter larger than the width of the gap 12.
[0017]
The tapered edges 3 ′ and 4 ′ (configured by a truncated cone) provided on the protrusions 3 and 4 serve to draw the horizontal member in the direction of the structural material 2. When the first retaining rod 11 is placed on the taper edge 3 ′, the retaining rod 11 moves in the direction of the structural member 2 while being lowered due to the inclination thereof, and the horizontal member 1 to which the joining bracket A is attached is the structural member 2. In the case of the tapered edge 4 ′ of the second protrusion 4, the through hole 7 (7 a, 7 b) provided in the joint fitting A so that a part of the tapered edge 4 ′ overlaps. ) When the second latching rod 11A or the locking rod 16 is inserted through (except for the uppermost one), the latching rod 11A or the locking rod 16 presses the taper edge 4 'relatively, and the through hole 7 (7a, 7b) and the tapered edge 4 'pressed by the second hook 11A or the like, that is, the second protrusion 4 is stationary. Therefore, the joining bracket A to which the second latching rod 11A and the like are assembled, that is, the horizontal member 1 side moves in the direction of the structural member 2, and the horizontal member 1 to which the joining bracket A is attached moves in the direction of the structural member 2. Will be attracted.
[0018]
Further, the tapered edges 3 ′ and 4 ′ are brought into pressure contact with the distal end portion of the free end side of the locking piece 6 in a bent shape (by the elastic action of the locking piece 6), and are stable with the locking piece 6. The assembled state can be obtained.
[0019]
And between the 1st protrusion 3 and the 2nd protrusion 4 which protruded in the structural material 2 in the gap | interval 12 (consisting of the locking pieces 6 and 6) provided by fixing the joining metal fitting A to the horizontal member 1 When the horizontal member 1 is lowered along the side surface of the structural member 2 so that the portions are relatively engaged with each other, the first hooking rod 11 disposed on the upper side of the gap 12 is hooked on the first protrusion 3. The horizontal member 1 is received by the first protrusion 3 via the first hook 11 and temporarily joined to the structural member 2 (note that the width of the gap 12 is set to the first and second protrusions). If the diameter is slightly narrower than the diameter of the intermediate portion of 3, 4, the protrusions 3, 4 are forced, that is, the locking pieces 6, 6 are pressed against each other by elastic deformation of the locking pieces 6, 6. A state in which the protrusions 3, 4 are clamped by the locking pieces 6, 6 when the first hooking rod 11, which is the movement end point, is relatively moved in the gap 12 and is hooked on the first protrusion 3. And the “temporary bonding” state is stable. ).
[0020]
In this state, the second hooking rod 11A is driven into the through hole 7 (7a, 7b) and the first fitting insertion hole 8 which are in communication with each other. As a result, the horizontal member 1 is drawn in the direction of the structural member 2 and the second hooking rod 11A is installed horizontally on the horizontal member 1. It is arranged at a position where it is fixed and received by the second protrusion 4, and the load on the side of the horizontal member 1 is applied to the second protrusion 4 to obtain load resistance strength.
[0021]
Also, the locking rod 16 is inserted into the lowest through hole 7 (indicated by reference numeral 7b) and the first fitting insertion hole 8 (indicated by reference numeral 8b) at the same time as the driving operation of the second hooking rod 11A. When driven and inserted, the locking bar 16 is placed horizontally on the horizontal member 1 at a position in contact with the lower edge of the second lowest protrusion 4, and when an external force is applied to the horizontal member 1 from below, The latch 16 is locked to the lower second protrusion 4 to prevent the horizontal member 1 from being lifted.
[0022]
Incidentally, after the first locking rod 11 is locked to the first protrusion 3, the lowest fitting first insertion hole (8) indicated by reference numeral 8b and the lowest through hole (7) indicated by reference numeral 7b are engaged. The horizontal member 1 is substantially fixed to the structural member 2 by driving and inserting the stoppers 16, and then the second hooks 11 </ b> A may be inserted and inserted into the through holes 7 or the like.
[0023]
Note that the number of the second protrusions 4 (the corresponding through holes 7 and the first fitting insertion holes 8) may be selected as appropriate, and an appropriate number may be selected and used. The second hooks 11 and 11A may be provided corresponding to all or appropriate ones of the protrusions (all of the first protrusions 3 and the second protrusions 4 in the embodiment). Need not be limited to placement).
[0024]
In the figure, reference numeral 17 denotes a locking bar provided on the head side (the side of the protrusions 3 and 4) of the bolt bar 15. , 4 can be arranged at the designed positions. That is, when the nut 14 is screwed and tightened, the head side (projections 3 and 4) of the bolt rod 15 retains the projection amount as designed by the locking rod 17 being locked to the side surface of the structural member 2. Thus, the lowering operation of the horizontal member 1 in the locking piece 6 (joint metal A) in a state of protruding from the side surface and passing through the gap 12 can be smoothly performed.
[0025]
In addition, a first fitting insertion hole 8 is provided in the horizontal member end 1 ′ so as to correspond to each through hole 7 provided in the joint fitting A, and the pair of through holes 7, 7 and the through holes 7, 7 may be fitted to all of the lower side of the set of insertion holes 8, 8 corresponding to 7 (in the case of FIG. Only fitted).
[0026]
7 has a sloped surface a that coincides with the tapered edges 3 ′ and 4 ′ (in the case of the first embodiment, the portion corresponding to the sloped surface a is a curved surface). FIG. 8 shows a joint metal fitting according to the third embodiment, in which a non-cylindrical one is welded to the assembly piece 5 to form a locking piece 6. These locking pieces are elastically deformed as in the first embodiment and are pressed against the protrusions 3 and 4.
[0027]
【The invention's effect】
As described above, the present invention attaches the joining bracket to the end face side of the wood, so there is no inconvenience in transportation, and as in the conventional example, the horizontal member can be reliably joined to the structural material. It is possible to provide a joining apparatus having a novel structure that can be made.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view.
FIG. 2 is a cross-sectional view.
FIG. 3 is a partially enlarged view of FIG. 2;
4 is a partially enlarged cross-sectional view of FIG.
FIG. 5 is a partial cross-sectional view of a joint fitting.
FIG. 6 is a perspective view of a joint fitting.
FIG. 7 is a perspective view of a second embodiment of the joint fitting.
FIG. 8 is a perspective view of a third embodiment of the joint fitting.
FIG. 9 is an enlarged cross-sectional view of a part using the joint fitting of the third embodiment.
[Explanation of symbols]
A Joint metal 1 Horizontal member 1 'End 2 Structural material 3 First protrusion 4 Second protrusion 5 Assembly piece 6 Locking piece 7 Through hole 8 Insertion hole 9 Engaging groove 11 Latch 11A Second Hanging rod 12 Gap 16 Locking rod

Claims (3)

An engagement groove of a lower end opening in which a joining metal piece is constituted by an assembling piece and a locking piece provided continuously at the tip of the assembling piece, and the pair of joining hardware is vertically provided on an end surface of a horizontal member such as a beam. The assembly piece is fixed to the end of the horizontal member such that the assembly piece is overlapped on the side wall and the locking piece is opposed to each other with a gap therebetween. A first protrusion with a head is installed between the upper part on the front end side that overlaps with the locking piece through the horizontal member, and the hook is supported in the intermediate portion through the gap. An appropriate number of second protrusions with heads interposed between the assembly pieces in a state of passing through the gaps below the first protrusions, and a structural member such as a column or a trunk difference. A second hook that protrudes from the side surface and latches on an intermediate portion of the second protrusion; and a latch that engages with a lower edge of one or both of the first protrusion and the second protrusion. Each of perching It was horizontally provided the insertion hole on a side surface of said end portion of the horizontal members, the welding device of the horizontal member. 2. The horizontal member joining apparatus according to claim 1, wherein the joint hardware is composed of an assembly piece and a locking piece that is folded back and overlapped with the tip of the assembly piece. On the circumferential side of the rear end of the head of each of the first protrusion and the second protrusion, a tapered edge that gradually increases in diameter toward the distal end of the head is provided, and the first and The joining apparatus of the horizontal member of Claim 1 or 2 which has arrange | positioned all or one part of a 2nd latching rod, a locking rod, and a locking piece.

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