JP5178245B2 - Horizontal material joining device - Google Patents

Description

  The present invention relates to a horizontal member joining apparatus used when joining horizontal members such as beams and girders of a wooden building to structural members such as columns and trunk differences.

  The joint plate of the joint fitting attached to the horizontal member is provided with a notch having a lower end opening, and a first projecting member that receives the upper edge of the notch and a second projecting member disposed below the first projecting column. Projecting on the side surfaces of the horizontal projections, and engaging insertion holes of the locking pins for locking the second projections and the locking pins for locking to the lower edges of the second projections, There exists the thing of the structure provided (for example, patent document 1).

JP 2002-146918 A

  The joining device having the above structure is used as one type of joining bracket system instead of the so-called mortise joining type, but the upper edge (back) of the notch in the lower end opening provided in the joining bracket attached to the horizontal member. The edge is hooked to the first protrusion provided on the structural material and the horizontal member is joined to the structural material. The load of the material is applied to the first protrusion through the joint fitting (notch) (even if it is not full load). Due to the combination of the child and the notch (upper edge), the horizontal member tends to swing around the first protrusion, and the integrity with the structural member may be impaired.

  The present invention has been devised to cope with such a load of an external force to be swung and to provide a horizontal member joining apparatus having a novel structure as a joining metal fitting system.

  A horizontal bracket is provided at the end of a horizontal member such as a beam or a girder that has a receiving metal projecting on the side of a structural material such as a column or trunk, and a vertical groove that fits the receiving metal is provided on the end surface. A joining plate is attached so as to be overlapped in the longitudinal direction, and the joining plate is engaged with a notch in the lower end opening, and a reverse U-shaped sandwiching groove in front view is formed on the peripheral side surface of the metal fitting, The peripheral side surface is provided with an insertion hole for a connection pin that is inserted into the end of the horizontal member through the vertical groove.

  Since the notch of the lower end opening provided on the retaining plate fits into the engagement groove provided on the bracket and the horizontal member is joined to the structural member, the horizontal member is swung. Therefore, it is possible to provide a joining device for a horizontal member having an unprecedented structure, which can be joined to a structural material without any external force acting.

  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 front view of a receiving bracket, and FIG. FIG. 5 is a plan view of the receiving bracket, FIG. 6 is a perspective view of the receiving bracket, and FIG. 7 is a perspective view of the joining bracket.

  In the joining apparatus of the embodiment, a joining bracket A is attached (fixed) to an end b ′ of a horizontal member (an embodiment is a beam, but a girder) b, and a structural member (a pillar in the embodiment). A receiving bracket B is projected on the side surface of c, and the joining bracket A is assembled to the receiving bracket B to join the horizontal member b to the structural member c.

  The joining bracket A is formed of a U-shaped steel plate frame with a mounting plate 2 provided on both sides of the joining plate 1, and the joining plate 1 is provided with a notch 3 having a lower end opening shape, leaving an upper end portion. The mounting plate 2 has through holes 6, 6 'for insertion of the upper and lower connection pins 4, 4' and through holes 7, 7 'for insertion of the upper and lower fixing pins 5, 5'. The two are arranged side by side so as to coincide with each other.

  A through hole 6 for inserting the upper connection pin 4 is provided above the notch 3 and in proximity to the joining plate 1. The lower connection pin 4 ′ is inserted in the intermediate position immediately below the through hole 6. A through hole 6 ′ is provided, and the upper and lower fixing pins 5, 5 ′ through holes 7 and 7 ′ are arranged in the longitudinal (up and down) direction of the notch 3 on the free (front) end side of the mounting plate 2. .

  Insertion holes 8, 8 ', 9, 9' are installed horizontally at appropriate positions on the side surface of the end b 'of the horizontal member b so as to coincide with the through holes 6, 6', 7, 7 '. The end surface b ″ is provided with a longitudinal groove 10 so as to be orthogonal to the respective fitting insertion holes 8, 8 ′, 9, 9 ′, and the joining metal A is engaged with the longitudinal groove 10 so that the joining metal A The fixing pins 5 and 5 'are inserted into the through holes 7 and 7' arranged in the vertical direction on the free end side of the mounting plate 2 and one of the upper and lower fitting insertion holes 9 and 9 'provided in the horizontal member end b'. And the joining bracket A is attached to the horizontal member end b ′ so that the joining plate 1 is overlapped in the longitudinal direction of the horizontal member b.

  The vertical groove 10 has a width substantially equal to the outer diameter width between the mounting plates 2 and 2 of the joint metal A, and has a depth that can be engaged with the support metal B protruding from the structural material c side. 10A and a pair of slit portions 10B and 10B provided by extending the groove portion 10A partially at both corners of the back wall of the groove portion 10A. That is, the joining bracket A crosses the slit portion 10B by engaging the groove portion 10A of the longitudinal groove 10 with one half of the attachment plate 1 side of the mounting plate 2 and the other half with the slit portion 10 respectively. The one upper and lower fitting insertion holes 9, 9 ′ provided on the side surface of the end b ′ of the horizontal member b and the transparent on the mounting plate 2 side arranged so as to coincide with the fitting insertion holes 9, 9 ′. The fixing pins 5 and 5 'are driven into and inserted into the holes 7 and 7', and are attached and fixed to the horizontal member end b 'as described above.

  The bracket B is disposed on the inner side of the L-shaped part in a side view (between both parts 11, 12) with a plate-like blocking part 12 projecting from the lower end of the plate-like contact part 11, on the side of the contact part 11. It is composed of a vertically long block body having a shape such that the metal shell main body 13 is arranged in an integral manner, and the base portion of the metal shell main body 13 on the closing portion 12 side is left on the horizontal member end b ′ at the upper end edge of the remaining portion. An insertion groove 14 for the upper latch pin 4 is provided in a horizontal position, and a width of separation from the insertion groove 14 is set directly below the insertion groove 14 to the through holes 6 and 6 ′ (or the insertion holes 8 and 8 ′. The connection hole 15 of the lower connection pin 4 ′ is provided so as to have the same width as the separation width of the bracket main body 13, and a peripheral side surface portion (in contact with the outside of the metal shell main body 13) A sandwiching groove 16 on the inverted U-shape in front view is provided along a longitudinally inverted U-shaped contour), and the constituent edge 3 'of the notch 3 is engaged with the sandwiching groove 16 to Joining The metal fitting A is assembled to the metal fitting B.

  In addition, the receiving bracket B has a through hole 17 at a position where it does not overlap the fitting groove 14 and the connection hole 15 at the center of the front surface of the bracket main body 13 (the surface facing the end surface b ″ of the horizontal member b). , 17 are arranged side by side, the tightening bolt 18 through the through hole 17 is passed through the through hole 19 provided in the structural material c, and the tightening nut 20 is screwed onto the tip of the bolt 18 protruding from the structural material c. Tightened and protruded by contacting the side of the contact portion 11 to the side surface of the structural material c.

  Then, as described above, the joining plate 1 of the joining bracket A that is engaged and housed in the longitudinal groove 10 and fixed to the horizontal member b by the fixing pins 5 and 5 ′ is fastened by the fastening bolts 18, and the side surface of the structural member c When the horizontal member b is lowered (by a crane or the like) while being engaged with the insertion groove 16 of the receiving metal fitting B projecting at the notch 3, the joining plate 1 is connected to the notch constituting edge 3 of the horizontal member b. 'Is engaged with the insertion groove 16 of the metal fitting B and is received and supported by the metal fitting B (the joint metal A is partially placed on the closing portion 12). Temporarily joined. In this state, the upper connection pin 4 is inserted into the upper insertion hole 9 through the other upper through hole 6 and the insertion groove 4, and the lower connection pin 4 ′ is connected to the other lower through hole 6 ′ and the connection hole 15. The connecting device for the horizontal member b to which the embodiment is applied can be obtained by inserting and driving the lower insertion holes 9′2 through the respective insertion holes.

  The closing portion 12 on the side of the bracket B has an outline shape substantially the same as the rectangular cross section of the groove portion 10A of the vertical groove 10, and is engaged in the vertical groove 10 (groove portion 10A). The vertical groove 10 (groove portion 10A) is divided into upper and lower parts depending on the combined state, the air flow through the vertical groove 10 is cut off, and the spread of fire during a fire is prevented as much as possible.

  Note that there is no inconvenience even if a connection hole is used instead of the fitting groove 14.

FIG. FIG. The front view of a receiving metal fitting. The side view of a receiving metal fitting. The top view of a receiving metal fitting. The perspective view of a receiving metal fitting. The perspective view of a joining metal fitting.

Explanation of symbols

B Receptacle b Horizontal member b 'End c Structural material 1 Joint plate 3 Notch 4' Connection pin 8 'Insertion hole 10 Vertical groove 16 Insertion groove

Claims (1)

  A horizontal bracket is provided at the end of a horizontal member such as a beam or a girder that has a receiving metal projecting on the side of a structural material such as a column or trunk, and a vertical groove that fits the receiving metal is provided on the end surface. A joining plate is attached so as to be overlapped in the longitudinal direction, and the joining plate is engaged with a notch in the lower end opening, and a reverse U-shaped sandwiching groove in front view is formed on the peripheral side surface of the metal fitting, An apparatus for joining horizontal members, wherein an insertion hole for a connection pin that is inserted into the end portion of the horizontal member through the vertical groove is provided on the peripheral side surface.

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