JPH10311095A - Connecting hardware for joint - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a simple and sturdy lengthwise connection by applying the constitution that a metallic plate having an inverted trapezoidal form with a tubular part wound around both side pieces is fitted into a slantwise hole formed on a wooden material end. SOLUTION: Tubular parts 4 and 4' are wound around both lateral sides of a metallic plate 3 having an inverted trapezoidal form, thereby forming jointing hardware. Thereafter, notches 6 and 6' slantwise holes 7 and 7' and a through-hole 8 are formed on the ends of square timbers A and B. At the time of connecting the square timbers A and B to each other, the plate 3 and the tubular part 4 are driven into the notch 6 and the slantwise hole 7 of the square timber A. Then, a fixing pin or the like is inserted in the through-hole 8 and passed through a corresponding fixing hole 5, thereby fixing timbers A and B to each other. Also, the notch 6' and the slantwise hole 7' on the lower surface of the square timer B are aligned with the upper side 1 of the plate 3 projected from the joint edge of the square timber A, and the upper surface of the tubular part 4'. Then, the upper surface of the square timber B is hammered and the square timber B is pulled toward the square timer A via the wedge action of the tubular part 4'. The square timbers A and B are thereby jointed to each other in a pressed contact state and fixed with a fixing pin. According to this construction, a jointing work can be easily and quickly executed, and the hardware is not conspicuous, thereby preventing a lowering in good appearance.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal joint for connecting a wooden piece such as a beam or a girder of a wooden house in a longitudinal direction.

[0002]

2. Description of the Related Art In wooden constructions, in order to connect wood in the length direction, generally, a method such as chasing a large plug, a metal ring, a dovetail perched, a sickle, etc. has been adopted. Since it requires processing such as notching, it takes time, and in consideration of seismic resistance, further strength is required.In recent years, metal joints such as strip hardware, palm hardware, etc. Has been reinforced.

[0003]

In the above-mentioned conventional metal joints, the function and strength are prioritized because the joints of the wood to be used are mainly located in an invisible place such as above the ceiling or under the floor. The aesthetics are not considered at all. But,
In modern architecture, there is an increasing number of novel designs that utilize wood frames and braces, such as beams, on the top or wall surfaces without using ceiling boards. However, when the above-mentioned conventional metal fittings are used, the metal parts are exposed to the outside of the wood, and the appearance is greatly impaired. An object of the present invention is to provide a metal joint which is hardly noticeable from the outside and can easily and firmly join wood and the like.

[0004]

A joint metal fitting for a joint according to the present invention has a tubular portion wound on both sides of an inverted trapezoidal metal plate, and on both sides of a center line of the metal plate, Each is provided with a fixing hole. In the metal joint for joints of the present invention, the tubular portions on both sides of the metal plate are fitted into the oblique holes formed in advance in the opposite end portions of two pieces of wood connected in the longitudinal direction, Maintains the pressure-welded joint between the woods and prevents both woods from separating in the length direction.
In addition, the inclination of the tubular portion acts as a wedge when the wood is inserted, and presses the joints of the wood in abutting manner.

The fixing hole of the metal plate is a hole for a pin for penetrating and fixing the wood and the metal plate attached to the metal plate, and is usually symmetrical with respect to the center line of the metal plate. Are provided in plurality. As a fixing pin attached to this fixing hole, the drift pin or the tip is chamfered,
A pin made of a metal rod having screw holes for bolts formed at both ends or a metal pipe having similar screw holes formed at both ends can be used. As the metal plate used for the metal joint of the present invention, a metal plate made of a galvanized alloy having a thickness of 2.3 mm or more and having a strength is usually used.

[0006]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing an example of a joint hardware for a joint according to the present invention, and FIG. 2 is a schematic partial perspective view showing a procedure for joining square members using the joint hardware of the present invention. FIG. 3 is a schematic partial perspective view showing a state in which square members are joined using the joint hardware of the present invention.

As shown in FIG. 1, the joint metal fitting for the joint of the present invention comprises an inverted trapezoidal metal plate body 3 in which the upper side 1 and the lower side 2 facing each other are parallel, and the upper side 1 is longer than the lower side 2. The wound tubular portions 4, 4 'are integrally formed on both sides thereof,
Fixing holes 5, 5 'are provided symmetrically with respect to the center line between the tubular portions 4 and 4', vertically and in parallel. As shown in the figure, the tubular portions 4, 4 'are located on opposite sides of the metal plate 3 in terms of strength, but may be on the same side.

Next, a procedure for joining the rectangular members A and B in the longitudinal direction using the joint metal of the present invention will be described. Square lumber A,
At the joint portion B, as shown in FIG. 2, linear cuts 6, 6 ′ for fitting fittings in advance and oblique holes 7, 7 ′ and a through hole 8 for fixing to the metal plate 3 are provided. It is formed. Here, the width of the cuts 6, 6 'is slightly smaller than the thickness of the metal plate 3, and the diameter of the oblique holes 7, 7' is formed to be substantially the same as or slightly smaller than the diameter of the tubular portions 4, 4 '. The inclination angles of the oblique holes 7, 7 'are formed to be the same as the inclination angles of the tubular portions 4, 4'. Further, it is important that the combined length of the cuts 6 and 6 'is formed to be slightly longer than the length of the metal plate 3 in the lateral direction.
The metal plates 3 are firmly pressed together by the tubular portions 4 and 4 ′.

At the time of joining, first, one of the square members A and B, for example, the cut 6 and the oblique hole 7 of the square member A shown in FIG.
The lower or upper side 1 of the metal plate 3 and the tubular portion 4 are
From the upper surface or the lower surface side, and is driven into the square material A with a hammer or the like. Then, the through hole 8 of the square bar A
Then, a fixing pin 9 as shown in FIG. 4 is inserted and penetrated through the corresponding fixing hole 5 of the metal plate body 3 to the opposite side of the square bar A, and a bolt 11 is inserted into a screw hole 10 formed at both ends of the fixing pin 9. To fix the joint metal of the present invention to the square bar A.

Next, the notch 6 'and the oblique hole 7' on the lower surface of the square member B are aligned with the upper side 1 of the metal plate 3 and the upper surface of the tubular portion 4 ', which are fixed to the square member A and protrude from the joint end face. By driving the upper surface of B with a hammer or the like, the tubular portion 4 'acts as a wedge, and the square bar B is gradually drawn toward the square bar A. Finally, the square bars A and B are butted against each other at the joint end surfaces. It is joined in the state. Furthermore, the square members A and B are firmly joined by fixing the square members B to the metal plate 3 using the fixing pins 9 in the same manner as the square members A.

As described above, the metal joint for joints of the present invention is
The metal part is almost inconspicuous from the outside, and, for example, by using a decorative bolt for the bolt 11, not only the end face of the fixing pin 9 is covered, but also the decorativeness of the part is enhanced, and the frame of wood or the like is removed. Applicable to modern architecture that makes use of it. The fixing of the square members A and B to the metal plate 3 has been described using a fixing pin as shown in FIG. 4, but the present invention is not limited to this, and is performed by using a long bolt or a drift pin. May be.

[0012]

According to the metal joint of the present invention, two pieces of wood can be easily and quickly butt-joined with one metal in the longitudinal direction, and the metal itself is almost inconspicuous. Since it does not impair the aesthetics at all, it can be widely used not only for Japanese architecture but also for Western style architecture for interior and exterior construction work.

[Brief description of the drawings]

FIG. 1 is a perspective view of an example of a joint hardware for a joint according to the present invention.

FIG. 2 is a schematic partial perspective view showing a joint portion between a joint hardware of the present invention and a square member used.

FIG. 3 is a schematic perspective view of a state in which square members are joined using the joint hardware of the present invention.

FIG. 4 is a perspective view showing an example of a fixing pin used for the metal joint of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Upper side 2 Lower side 3 Metal plate 4, 4 'Tubular part 5, 5' Fixing hole 6, 6 'Cut 7, 7' Oblique hole 8 Through hole 9 Fixing pin 10 Screw hole 11 Bolt

Claims (1)

[Claims] 1. A joint metal fitting for a joint comprising a tubular portion wound on both sides of an inverted trapezoidal metal plate, and fixing holes provided on both sides of a center line of the metal plate.