JP4327782B2 - Column and foundation mortise joining device - Google Patents

Description

  The present invention relates to a mortise joining apparatus for a pillar and a foundation, which joins a pillar in a wooden building to a foundation placed on foundation concrete.

  A so-called tenon joining apparatus that joins a tenon provided on the lower end surface of a column to a tenon provided in a base and joins the column and the base is well known.

  Even though the conventional tenon joint can structurally cope with the load of the external force in the horizontal direction on the column, it has a drawback that it lacks the resistance to the external force in the pulling direction.

  The present invention has been devised to provide a tenon joining device for a column and a base that can sufficiently cope with an external force applied in a pulling direction with respect to the column.

  In a tenon joining device for a column and a base, which joins and joins a tenon projecting from the lower end surface of the column to a tenon hole provided in the base, the slit is formed on the lower end surface of the column on the extension of the opposite side of the tenon. A lower part of a pair of metal joining plates fitted to the pillar by fitting the upper ends of the slits into the slits is fitted into the mortises together with the tenons interposed between the joining plates. The lower part and the joining material of the joining metal fitting inserted into the mortise from the lower side of the foundation were fixed to each other by a fixing rod penetrating the foundation, and the joining metal fitting was placed on the foundation and the foundation. It is set as the structure comprised with the base | substrate interposed between foundation concrete and the said joining material standingly set | placed on this base | substrate.

  According to the present invention, the tenon (wooden) itself is reinforced by adopting a configuration in which a metal connecting plate is superposed on the tenon projecting from the bottom end surface of the column, and therefore the proof against horizontal external force is increased. In addition, the connecting plate is inserted into the mortise on the base side together with the mortise, and the joining material (the substrate interposed between the base and the foundation concrete) And a fixed column-base joining device that can cope with pulling out.

  A tenon joining apparatus for a pillar and a base according to the present invention includes a base 1 of a joining metal fitting A constructed by standing a joining material 2 on a base 1, and a base 3 on which the base concrete b is placed. The joining material 2 is fitted into the mortise 4 provided in the base 3 and is inserted between the joining material 2 and the tenon 5 on the side of the column 6 inserted into the mortise 4 together with the tenon 5. The overlapped connection plates 7 (made of metal) are connected to each other by a joining rod 8 fitted into the base 3.

  The connecting plate 7 is inserted into the slits 9 and 9 provided in the column 6 on the extension of the opposing side surfaces 5a and 5a of the tenon 5 protruding from the lower end surface of the column 6, and the upper end side is inserted. A fixing rod 12 is inserted into the upper through hole 10 provided in the connecting plate 7 and the through hole 11 provided on the column 6 side from the outside of the column 6 and assembled to the column 6. The joint rod 8 is inserted from the outside of the base 3 into the lower through-hole 13 provided in the inserted lower part and the through hole 15 horizontally provided in the base 3 so as to coincide with these, and the lower side thereof is attached to the base 3. It is intended to be connected.

  In addition, the base | substrate 1 which comprises the joining metal fitting A functions as a forming material of the ventilation port which is interposed between the foundation concrete b and the base 3, and connects under floor and the outdoors, It is fastened to the foundation concrete b together with the base 3 by a nut screwed into this.

First embodiment

  FIGS. 1 and 2 show a first embodiment. This first embodiment uses a reinforcing frame 17 (FIGS. 5 and 6) constructed by disposing the connecting plate 7 at both ends of the intermediate piece 16 as a constituent material. The length of the connecting plate 7 is made slightly equal to the sum of the protruding amount (length) of the tenon 5 protruding from the lower end surface of the column 6 and the length (depth) of the slit 9 and connected. The connection plate 7 is inserted into the slit 9 so that the separation width between the plates 7 and 7 (inner diameter of the reinforcing frame 17) is substantially equal to the width (heat) between the side surfaces 5a and 5a of the tenon 5. As described above, the frame is fixed with the fixing rod 12 and the reinforcing frame 17 is assembled to the column 6. In this assembled state, the tenon 5 is positioned near the intermediate piece 16 of the reinforcing frame 17. The through hole 18 provided in the existing tip is located at a position coincident with the lower through hole 13 provided in the connection plate 7 (which constitutes the reinforcing frame 17). By the joint rod 8 which fits inserted through hole 18, the tenon 5 is fixed to one another and the connecting plate 7, the bonding material 2 and base 3 (the joining pieces 2A described later).

  Further, the joining bracket A applied in the first embodiment is formed by welding a central piece of a groove-like frame body to a metal base 1 and connecting a pair of joining pieces 2A and 2A so as to face each other. The reinforcing frame 17 (connecting plate 7) in which the tenon 5 is fitted between the joining pieces 2A and 2A constituting the joining material 2 is fitted, and the joining rod 8 through the through hole 15 is used. As described above, the tenon 5, the reinforcing frame 17 (connection plate 7), the joining material 2 (joining piece 2A), and the base 3 are connected to each other and integrated.

  In the figure, 19 is a through-hole for the joint rod 8 provided in the joining material 2 (joint piece 24).

Second embodiment

  3 and 4 (and FIGS. 5 to 8) show a second embodiment, in which the first embodiment allows the joint rod 8 to pass through the tenon 5 using the through hole 18. In contrast, the column 6 and the base 3 are joined, and the amount of protrusion of the tenon 5 from the lower end surface of the column 6 is reduced so that the tenon 5 and the joining rod 8 can be directly assembled (connected). It is omitted.

  That is, the tenon 5 does not need to be directly connected to the base 3 as shown in the first embodiment.

  Since the remaining points are the same as those in the first embodiment as indicated by the same reference numerals, the description thereof is omitted.

Third embodiment

  In the third embodiment shown in FIGS. 9 to 10, each of the first and second embodiments comprises the connecting plate 7 with the constituent material of the reinforcing frame 17, whereas this is constituted with a metal plate. The upper end side is inserted into the slit 9 and fixed to the column 6 with the fixing rod 12 so as to be opposed to each other through the tenon 5, and the lower end side is fitted with the tenon 4 provided on the base 3 side together with the tenon 5 As described above, the bonding material 2 of the bonding metal A is fixed to the base 3 using the bonding rod 8.

  And the joining metal fitting A applied to this 3rd Example is what made the said joining material 2 by welding the metal frame of a cross-section reverse groove shape to the base | substrate 1, The mortise 4 of this joining material 2 and the base 3, The base plate 3 is combined with the base 3 so that the lower end of the connecting plate 7 protruding from the tenon 5 fitted in the mortise 5 is engaged with the inner surface of the base plate 3, and these through the through holes 15 provided in the base 3. The joining rod 8 is inserted and driven into the joining material 2 and the connecting plate 7 to form the joining device of the third embodiment.

  It should be noted that it is not inconvenient to use the joint fitting having the shape (state) shown in the first and second embodiments in place of the joint fitting A of the third embodiment.

The front view of 1st Example. Sectional drawing of FIG. The front view of 2nd Example. Sectional drawing of FIG. The front view of a reinforcement frame. The side view of a reinforcement frame. The front view of a joining metal fitting. The side view of a joining metal fitting. The front view of 3rd Example. Sectional drawing of FIG. The front view of a connection board. The side view of a connection board. The front view of a joining metal fitting. The side view of a joining metal fitting.

Explanation of symbols

2 Joining material 3 Base 4 Mortise 5 Mortise 6 Column 7 Connection plate 9 Slit 12 Fixing rod A Joint fitting b Basic concrete

Claims (1)

In a tenon joining device for a column and a base, which joins and joins a tenon projecting from the lower end surface of the column to a tenon hole provided in the base, a slit is formed on the lower end surface of the column on the extension of the opposite side of the tenon A lower part of a pair of metal joining plates fitted to the pillar by fitting the upper ends of the slits into the slits is fitted into the mortises together with the tenons interposed between the joining plates. The lower part and the joining material of the joining metal fitting inserted into the mortise from the lower side of the foundation were fixed to each other by a fixing rod penetrating the foundation, and the joining metal fitting was placed on the foundation and the foundation. A mortise joining apparatus for a column and a base, which is composed of a base interposed between the base concrete and the joining material erected on the base.

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