JP2565438Y2 - Beam joint structure in wooden building - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a beam joint structure in a wooden building.

[0002]

2. Description of the Related Art In a wooden building, a joint structure for joining two pieces of wood includes a joint structure between a column and a beam, a joint structure between a column and a base, and a series or orthogonal direction between a beam and a beam. There are various types of joint structures, such as a joint structure, a joint structure at the top of a pair of left and right diagonal members that form a triangle of a truss with a joint, that is, a beam, and a joint structure between an outer end of the diagonal member and an upper end of a column. Conventionally, the joining of two pieces of wood in these various joining structures is performed by processing such as chopping and drilling, by joining metal fittings such as nails, bolts and nuts, dowels, flange plates, and by adhesives. Various types are known, such as those using the same.

[0003]

The above-mentioned various types of conventional joints have been developed and adopted for joining general wood, i.e., Muku material, and have given a certain effect. It is recognized. However, this type of joining is not enough for the joining structure in large-scale wooden buildings that use structural glued laminated lumber for the main structural part, which has recently attracted attention and is being built. Alternatively, it is not always satisfactory because the joining fitting is exposed on the outer surface and is indefinite. The main purpose of the present invention is to provide a sufficiently satisfactory tightening strength for wooden structures using general timber, as well as large-scale wooden buildings using structural glued wood, without impairing the appearance of the beam joint structure. The purpose of the present invention is to provide a beam joint structure that can obtain

[0004]

The construction of the beam joint structure in the wooden building according to the present invention is as follows.

[0005] A main body 1 of a joining metal fitting is provided on an upper surface of a bottom plate 2.
A core plate 3 having a height slightly lower than the height (thickness) of the beams 9 and 10 to be joined to each other is vertically established, and both ends of the core plate 3 in the longitudinal direction and both sides are symmetrical. At positions, wedge guide pieces 4, 4, 5, and 5 having at least inner surfaces facing each other having upward inclined surfaces 6, 6, 7, 7 are formed, and wedge guide pieces 4, 6, 5, 7 are formed. A through hole 2 'is provided in the bottom plate 2 at a position corresponding to each lower end.

[0006] The beams 9, 10 are connected to the joint end 1 thereof.
Flat cavities 14 and 14 which are provided on the bottom surfaces thereof and have a required size and shape to receive the left and right halves of the bottom plate 2 of the joint fitting main body 1 in the longitudinal direction; , 12 are formed along the center line of the core plate 3 and have a required size and shape to receive the left and right halves of the core plate 3 in the longitudinal direction. Widened longitudinal grooves 16 and 17 of a required size and shape which receive the above-mentioned wedge guide pieces 4 and 5 and further have a space for receiving the driving wedges 20 and 21 to be described later.
Are formed continuously with each other.
The fitting cavities 13 and 13 are mounted on the bottom plate 2 of the joining metal body 1 in a state where the fitting cavities 13 and 13 are fitted to the joining metal body 1, and the mounting is performed by the mounting. The upper surface of the core plate 3 and the wedge guide pieces 5 and 6
13, the upper surface of the beams 9, 10, ie, the joint end 1
A slight step s is formed between the upper surfaces 1 and 12.

The driving wedges 20, 2 that are sufficiently longer and taper than the height (thickness) of the joint ends 11, 12 of the beams 9, 10
The wedge guide pieces 4, 5 are densely driven and inserted along the upwardly inclined surfaces 7, 8 of the wedge guide pieces 4, 5 into the extra space of the widened longitudinal grooves 16, 17 which receive the wedge guide pieces 4, 5. , The entire beam 9, 10 is forcibly moved in a direction approaching each other, and the longitudinal end faces 18, 19 of their joint ends 11, 12 are pressed against each other. When the pressure contact is completed,
The upper ends of the driving wedges 20, 21 still projecting above the widened vertical grooves 16, 17 and the lower end projecting from the through hole 2 'of the bottom plate 2 below the widened vertical grooves 16, 17 are provided. Cutting has been removed.

[0008] The cover plate 22 is made of the core plate 3
Are mounted on the upper surfaces of the joint ends 11 and 12 of the beams 9 and 10 in a state in which a gap corresponding to the step s is formed between the upper ends of the core plates 3 by screws 24. Secured to the end face.

[0009]

The beams 9 and 10 to be joined are joined at the joining ends 11 and 1 thereof.
The fitting wedges 20, 20, 21, 21 are mounted on the bottom plate 2 of the fitting main body 1 in a state where the fitting cavities 13, 13 formed in the fitting 2 are fitted to the above-mentioned fitting main body 1. The entire beams 9 and 10 are brought close to each other by being densely driven and inserted along the wedge guide pieces 4 and 5 into the extra space of the widened longitudinal grooves 16 and 17 receiving the wedge guide pieces 4 and 5. Forcibly in the direction, so that the longitudinal end faces 18 and 19 of the joint ends 11 and 12 are pressed against each other, thereby simplifying a beam joint structure with sufficient tightening or joint strength in a wooden building. Is obtained.

The driving wedges 20 and 21 are sufficiently longer and tapered than the height (thickness) of the joining ends 11 and 12 of the beams 9 and 10, and the longitudinal end faces 18 and 17 of the joining ends 11 and 12 are formed. 1
9, when the pressure contact is completed, the upper end portion still protruding above the widened vertical grooves 16, 17 and the through hole 2 'of the bottom plate 2 below the widened vertical grooves 16, 17 and Since the protruding lower end portion is cut and removed by a saw, the driving length is not limited as in the case where the lower ends of the widened vertical grooves 16, 17 are closed by the bottom plate 2 and become blind ends. Therefore, the pressing and tightening of the longitudinal end faces 18 and 19 of the joining ends 11 and 17 can be sufficiently performed.

A cover plate 22 is mounted on and covers the upper surfaces of the joint ends 11 and 12, and the core plate 3 of the joint fitting main body 1 is covered by the cover plate 22.
Since it is fixed to the upper end face, the tightening strength of the beams 9 and 10 is improved by at least that much. The cover plate 22
A gap corresponding to the step s described above is formed between the cover plate 22 and the upper end surface of the core plate 3, so that unlike the case where the cover plate 22 is in direct contact with the upper end surface of the core plate 3, Is performed more firmly.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference numeral 1 designates a joining metal body, which comprises a rectangular bottom plate 2, a rectangular core plate 3 which is vertically formed along the center line on the upper surface thereof, and a longitudinal plate of the core plate 3. And wedge guide pieces 4, 4, 5, and 5 attached at symmetrical positions on both sides in the direction. The wedge guide pieces 4, 4,
5, 5 are upwardly inclined surfaces 6, which guide at least inner surfaces facing each other to drive wedges 20, 21 described later.
6, 7, 7, and through holes 2 ′ are provided in the bottom plate 2 at positions corresponding to the lower ends of the upwardly inclined surfaces 6, 6, 7, 7.
The height of the core plate 3 is determined by beams 9, 1 to be described later to be joined.
0, or more precisely, slightly lower than the height (thickness) of their joint ends 11,12. 8 are screw holes drilled at required intervals in the upper end surface of the core plate 3.

In the main body 1 of the joint, the bottom plate 2, the core plate 3, and the wedge guide pieces 4, 5 are separately prepared, and they are assembled by an appropriate means or method such as welding or screwing, or are integrally formed as a whole. Obviously, it can be manufactured arbitrarily. The beams 9 and 10 to be joined to each other have their joint ends 1
In FIGS. 1 and 12, fitting cavities 13 and 13 having substantially the same shape as the outer shape of the joint 1 are formed (FIG. 2). That is,
The fitting cavities 13, 13 are provided on the bottom surfaces of the joining ends 11, 12 and have flat cavities 14, 14 of a required size and shape for receiving the left and right halves in the longitudinal direction of the bottom plate 2. Vertical grooves 15, 15 formed along the center lines of the joint ends 11, 12 and having the required size and shape to receive the left and right halves in the longitudinal direction of the core plate 3, and in the middle of the vertical grooves 15, 15 Widened longitudinal grooves 16 and 17 of a required size and shape having a space for receiving the wedge guide pieces 4 and 5 and having a space for receiving the driving wedges 20 and 21 described later.
Are formed continuously with each other.

More specifically, the flat cavities 14 and 14 are not only the bottom surfaces of the joint ends 11 and 12 but also the longitudinal end surfaces 1 thereof.
8 and 19, and the vertical grooves 15 and 15 are flat
4, 14 and open to the upper surfaces of the joint ends 11, 12 and the longitudinal end surfaces 18, 19, and the widened vertical grooves 16, 17 also have lower ends at the flat empty spaces 14, 1 as well.
4 and an upper end is opened at the upper surface of the joint ends 11 and 12.

The joining of the beams 9 and 10 is performed as follows.
The joining ends 11 and 12 of the beams 9 and 10 are mounted on the bottom plate 2 by fitting fitting spaces 13 and 13 to the joining metal body 1. With this mounting, the upper surfaces of the core plate 3 and the wedge guide pieces 4 and 5 of the main body 1 of the joining fitting are located in the fitting cavities 13 and 13, and the upper surfaces of the beams 9 and 10, that is, the joining ends 11 and 1.
A slight step s is formed with the upper surface of the second substrate 2 (FIG. 3). Further, the upper surface openings of the widened vertical grooves 16 and 17 are in a state where the half portions on the end faces 18 and 19 in the longitudinal direction are empty (FIG. 3).

Then, the driving wedges 20, 20, 21, 21 are inserted into the open sides of the widened vertical grooves 16, 17, ie, the half portions of the wedge guide pieces 4, 5 on the upward inclined surfaces 7, 8 side. Driving closely along surfaces 7 and 8 (Fig. 3,
4). The driving wedges 20 and 21 are connected to the joining ends 1 of the beams 9 and 10.
It is sufficiently longer and tapered than the thicknesses (heights) of the beams 1 and 12. By the driving, the entire beams 9 and 10 move along the main body 1 of the joining tool in a direction approaching each other, and the joining ends 11. , 12 are pressed against the longitudinal end faces 18, 19.

When this pressure contact is completed,
The upper ends of the driving wedges 20 and 21 still protruding above the widened vertical grooves 16 and 17 and the lower end protruding from the through hole 2 ′ of the bottom plate 2 below the widened vertical grooves 16 and 17. Cut and remove with a saw. Since the lower ends of the widened vertical grooves 16 and 17 into which the driving wedges 20 and 21 are inserted are opened through the through holes 2 ′ of the bottom plate 2, the tapered lower ends can be penetrated downward. There is therefore no limitation on the length of the driving, as in the case where the lower ends of the widened longitudinal grooves 16, 17 are closed and blind at the bottom plate 2, and the longitudinal end faces 18 of the joining ends 11, 12 , 19 can be sufficiently tightened.

Reference numeral 22 denotes a cover mounted on the upper surfaces of the joint ends 11 and 12 and fixed to the upper end surface of the core plate 3 of the joint fitting main body 1 by screws 24 inserted through through holes 23. The plate protects the upper surfaces of the joint ends 11 and 12 of the beams 9 and 10 and further strengthens the connection between the main body 1 and the beams 9 and 10. The cover plate 22 has joint ends 11 and 12 with which the longitudinal end faces 18 and 19 are pressed.
Are screwed into the screw holes 8 in the upper end surface of the core plate 3 by the screws 24.

The tightening by the screws 24...
Since a gap corresponding to the step s is also formed between the cover plate 22 mounted on the first and second plates 12 and the upper end surface of the core plate 3, the cover plate 22 directly impacts the upper end surface of the core plate 3. Unlike when they are in contact, they are performed firmly (Fig. 1,
5). Thus, a joint structure between the two beams 9 and 10 is completed.

[0020]

[Effect of the invention] As is clear from the above description,
According to the present invention, the following effects can be obtained.

The beams to be joined to each other are mounted on the bottom plate mainly of the joint fitting with the fitting space formed at the joint end fitted to the joint fitting main body. The whole of the beams is forcibly moved in the direction of approaching each other by densely driving and inserting the guide pieces into the extra space of the widened vertical groove that has received the guide pieces along the wedge guide pieces. By pressing the longitudinal end faces of
In a wooden structure, a beam-joined structure with sufficient tightening or joint strength can be easily obtained.

The driving wedge is sufficiently longer and tapered than the height (thickness) of the joint end of the beam, and when the press-contact of the longitudinal end face of the joint end is completed, the width is widened. Since the upper end still protruding above the vertical groove and the lower end protruding from the through hole of the bottom plate 2 below the widened vertical groove are cut and removed, the lower end of the widened vertical groove is formed by the bottom plate. The length of the drive is not restricted as in the case of a closed blind end, so that the crimping of the longitudinal end face of the joint end of the beam is sufficient.

Further, since the cover plate is mounted on and covers the upper surface of the joint end and is fixed to the upper end surface of the core plate mainly composed of the joint fitting, the tightening joint strength between the beams is at least that much. Only improve. Since a gap corresponding to the step s is formed between the cover plate and the upper end surface of the core plate, the cover plate is
Unlike the case where the upper end face is in direct contact with the upper end face, the above-described tightening connection is performed more firmly.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a beam joint structure according to an embodiment of the present invention.

FIG. 2 is a perspective view of the same disassembled state.

FIG. 3 is a perspective view showing a state in which a joint end of a beam is mounted on a joint fitting main body.

FIG. 4 is a cross-sectional view of a state where a driving wedge is driven into the joint end of the above.

FIG. 5 is a sectional view showing a state where the upper and lower ends of the driving wedge are cut off and a cover plate is mounted and fixed.

[Explanation of symbols]

 s Step 1 Bonding fixture main body 2 Bottom plate 2 'Through hole 3 Core plate 4 Wedge guide piece 5 Wedge guide piece 6 Upward inclined surface 7 Upward inclined surface 9 Beam 10 Beam 11 Joint end 12 Joint end 13 Fitting space 14 Flat Empty 15 Vertical groove 16 Widened vertical groove 17 Widened vertical groove 18 Longitudinal end face 19 Longitudinal end face 20 Driving wedge 21 Driving wedge 22 Cover plate 24 Screw

Claims (1)

(57) [Scope of request for utility model registration] The present invention is characterized in that a joining metal body vertically establishes a core plate having a height slightly lower than a height (thickness) of a beam to be joined to each other on an upper surface of a bottom plate, and a longitudinal direction of the core plate. At both ends and at symmetrical positions on both side surfaces, wedge guide pieces having at least the inner surfaces facing each other are formed as upwardly inclined surfaces, and through holes are formed in the bottom plate at positions corresponding to the lower ends of the upwardly inclined surfaces. That the beam is provided at the joint end thereof, at the bottom thereof, and has a flat space having a required size and shape to receive the left and right halves in the longitudinal direction of the bottom plate mainly composed of the joint fittings. A vertical groove provided along the center line of the joint end and having a required size and shape to receive each of the left and right halves in the longitudinal direction of the core plate, and provided to be widened in the middle of the vertical groove; After receiving the above wedge guide piece, further drive the wedge A fitting cavity is formed by continuously forming a widened vertical groove having a required size and shape having a space to receive the fitting space, and the fitting cavity is fitted to the main body of the joining fitting. In this state, it is mounted on the bottom plate mainly composed of the joint, and by this mounting, the upper surfaces of the core plate mainly composed of the joint and the wedge guide piece are located in the fitting space, and the upper surface of the beam, that is, A slight step s is formed between the upper surface of the joint end and the driving wedge that is sufficiently longer and tapered than the height (thickness) of the joint end of the beam to receive the wedge guide piece; The wedge guide piece is densely driven and inserted into the extra space of the widened vertical groove along the upwardly inclined surface of the wedge guide, and the entire beam is forcibly moved in a direction of approaching each other, and the longitudinal direction of the joint ends thereof is The end faces are pressed against each other, and when the pressing is completed, The upper end of the driving wedge still protruding, and the lower end below the widened vertical groove and protruding from the through hole of the bottom plate are cut and removed. The beam is mounted on the upper surface of the joint end of the beam in a state in which a gap corresponding to the step s is formed between the beam and the upper end surface of the beam, and is tightly fixed to the upper end surface of the core plate by a screw. Beam joint structure in wooden buildings.