JP5189867B2 - Cylindrical cylindrical fitting for shaft assembly - Google Patents

Description

  The present invention relates to a cylindrical joining metal member used for joining together frame members in a wooden building used for joining a beam and a column, for example.

  A shaft assembly cylinder provided with an insertion hole for a pin that is inserted through the shaft assembly at one end that is inserted into one of the shaft assemblies and the other end that is inserted into the other assembly. The joint metal fitting is known (for example, Patent Document 1).

JP 2003-13503 A

  The joint fitting is constituted by a so-called welded steel pipe, and the welded steel pipe is obtained by welding both ends along the longitudinal direction (axial direction) of the joint fitting. For this reason, it has also been proposed that a cylindrical body in which welding is omitted, i.e., with the both ends along the longitudinal direction simply abutting, is applied as a fitting, but when the external force is applied unevenly in the longitudinal direction, As a result, the pin assembled to the joint fitting bends, resulting in an uneven squeezing force on the shaft assembly (wood). It was recognized that the shaft assembly material was sometimes split and lacked practicality.

  The present invention was devised for the purpose of removing such disadvantages of a conventional cylindrical joining metal fitting formed without welding and obtaining a product that is cheaper than a welded one.

A longitudinal direction is formed by providing a pin or bolt insertion hole to be inserted through the shaft assembly material at one end portion of the shaft assembly material to be joined to each other and at the other end portion of the other shaft assembly material. A projecting piece provided on the one end on the other end corresponding to the one end, and a notch having the same shape as the projecting piece in the longitudinal direction. A rectangular metal plate in which a notch having the same shape as the protruding piece and a protruding piece having the same shape as the notch is provided in parallel with the notch provided at the one end is bent, The projecting piece is engaged with the notch on the other end side, and the projecting piece on the other end side is engaged with the notch on the one end side, so that the one end and the other end are arranged at the corresponding positions. Is.

  According to the present invention, since the protruding piece and the notch are engaged with each other and both ends along the longitudinal direction are combined with each other, even if an external force is applied in the longitudinal direction, there is no deviation along the longitudinal direction. Thus, it is possible to provide a joint fitting having a practical tenon function that reliably holds the joint state between the shaft assemblies and is inexpensive.

  The drawings show one embodiment of the cylindrical joint metal fitting according to the present invention, FIG. 1 is a front view, FIG. 2 is a plan view, and FIG. 3 is a sectional view showing a use state.

In the figure, A is a cylindrical joint metal fitting according to the present invention, and the joint metal fitting A is obtained by bending a substantially rectangular metal plate 10 that has been press-formed, and the longitudinal direction of the metal plate 10 that has been press-formed. The other end 10b corresponding to the one end 1a is arranged in parallel to the one end 10a along the longitudinal direction with the rectangular protrusions 11 and the notches 12 having the same shape as the protrusions 11 along the longitudinal direction. A notch 12 having the same shape as the protruding part piece 11 corresponding to the protruding part piece 11 provided at the one end 10a, and a protruding part piece 11 having the same shape as the notch 12 corresponding to the notch 12 provided at the one end 10a. When the metal plates 10 are bent, the protruding piece 11 on the one end 10a side is set to the notch 12 on the other end 1b side, and the protruding piece 11 on the other end 10b side is set to the notch 12 on the one end 1a side. The one end 10a and the other end 10b It is a cylindrical joint metal fitting A arranged so as to be in contact with the joint metal A. The joint metal fitting A is provided with insertion holes 13 at both ends so as to penetrate the pins 14. When the plate 10 is press-formed, a long long hole is provided in a direction perpendicular to the longitudinal direction, and the metal plate 10 is obtained by circular deformation processing in which the pin 14 is inserted when the metal plate 10 is bent.

  In the embodiment, one insertion hole 13 is provided at each end, but it is not inconvenient if three or more insertion holes 13 are provided if necessary, and the projecting piece 11 and the notches 12 have the same rectangular shape. However, it is not always inconvenient even if the sizes of the protruding pieces 11 (and thus notches 12) change.

  FIG. 3 shows a state in which the column 17 and the body insert 20 are joined using the joining fitting A as a tenon material. That is, one end side of the joint fitting A is inserted into the insertion hole 18 provided on the upper end surface of the column 17, and the insertion hole 13 on the one end side and the through hole 19 provided on the column 17 are made to coincide with each other. Pin) is inserted and the fitting A is fixed to the column 17, and the other end of the fitting A protruding from the column 17 is inserted into the insertion hole 18 'provided in the barrel 20, and the insertion provided at the other end Bolts 14 ′ are fitted into the holes 13 and the corresponding through holes 19 provided in the body insert 20 to be fastened to the body insert 20, and the column 17 and the body insert 20 are joined.

  The present fitting A can be applied to a combination other than the combination of shaft assemblies shown in FIG.

  It should be noted that a beam 23 is joined to the body insert 20 of FIG.

Front view. Plan view. Sectional drawing which shows a use condition.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Metal plate 11 Protruding part piece 12 Notch 13 Through-hole 17, 20 Shaft assembly material

Claims (1)

A longitudinal direction is formed by providing a pin or bolt insertion hole to be inserted through the shaft assembly material at one end portion of the shaft assembly material to be joined to each other and at the other end portion of the other shaft assembly material. A projecting piece provided on the one end on the other end corresponding to the one end, and a notch having the same shape as the projecting piece in the longitudinal direction. A rectangular metal plate in which a notch having the same shape as the protruding piece and a protruding piece having the same shape as the notch is provided in parallel with the notch provided at the one end is bent, The projecting piece is engaged with the notch on the other end side, and the projecting piece on the other end side is engaged with the notch on the one end side, so that the one end and the other end are arranged at the corresponding positions. , Cylindrical cylindrical fittings.

Images