JP2000257202A - Wooden arch structure, and connection piece used therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wooden arch structure capable of forming an extensive space in a garret, and a connection piece used therefore. SOLUTION: In this wooden arch structure, a pair of upward beams 1, 1 are butted to each other in an inverted V-shaped between upper sides of a pair of columns erected with an interval therebetween in the right-to-left direction, a connection piece 2 is arranged in a corner portion of a bottom surface continuous to the inverted V-shaped portion in an abutted manner on both upward beams 1, 1, and the connection piece 2 is fixed to each upward beam 1 by a fixing means 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wooden arch structure in which a pair of climbing beams are erected in an inverted V-shape between the upper sides of a pair of columns which are vertically spaced apart from each other, and a connection used therefor. About metal fittings.

[0002]

2. Description of the Related Art As a conventional wooden house, there is no arch structure of a frame. Usually, as shown in FIG. 8, a plurality of beams 92 are provided above a ceiling 91, and an interval is provided in a depth direction of the drawing. The roof was opened and arranged, and a ridge bundle 93 and a field bundle 94 were erected above each beam to support the roof 95. As another example, as shown in FIG. 9, a pair of climbing beams 9 is provided immediately below the roof.
There is also a structure in which 6, 96 are abutted via a bridge 97, and a pillar 98 is erected below the bridge.

In the above two structures, since a large load supporting the roof is applied to the ridge, it is necessary to raise a bundle or a pillar on the lower side of the ridge, and the bundle or the pillar hinders a large space in the attic. There was a common problem. Therefore, the present inventor
We worked on the development of a wooden arch structure that can provide a large space, and at the same time, we started the development of a dedicated connection bracket that can be used as a substitute for a bundle or a pillar.

[0004]

SUMMARY OF THE INVENTION The present invention has been developed in view of the above circumstances, and an object of the present invention is to provide a wooden arch structure capable of forming a large space in an attic and a connecting metal fitting used therefor. It is.

[0005]

According to the present invention, a wooden arch structure is provided between a pair of columns vertically spaced apart from each other.
A pair of climbing beams are erected in an inverted V-shape, and a connecting bracket is arranged at a corner portion of a bottom surface continuous with the inverted V-shape so as to abut on both climbing beams, and a connecting bracket is attached to each climbing beam. Are fixed by fixing means.

The fixing means is for fixing the connecting fitting to the climbing beam, and examples thereof include a bolt, a nut, and a pin.

The construction of a pair of climbing beams between the upper sides of a pair of columns means a structure in which the columns and the climbing beams are connected in a substantially abutting state, and a girder extending in the front-rear direction above the columns. This is a concept that includes a structure that is fixed in a state and a climbing beam is connected to the girder.

In order to improve the connection strength more than the above-mentioned structure, the pillar and the climbing beam are abutted in a substantially rectangular shape. It is preferable that the connecting members are arranged in contact with the beams, and the connecting fittings are fixed to the columns and the climbing beams by fixing means.

[0009] The connecting bracket of the present invention joins the right and left climbing beams abutted in an inverted V-shape at the corners of the bottom surface continuous with the inverted V-shape using fixing means. At the center of the front and rear width of the bottom of the beam, while fixing the inclined piece in abutment, the supporting piece that holds the inclination angle of both inclined pieces at the front and rear two places between both inclined pieces is attached to the side of the climbing beam It is characterized in that it is interposed in a parallel state, and the upper part of each support piece is formed in an inverted V-shape in contact with the front and rear edges of the bottom surfaces of both climbing beams.

[0010] In the above-mentioned connecting fitting, the structure in which the pair of inclined pieces abuts the bottom surfaces of the pair of climbing beams is an inverted V-shape or a C-shape.

[0011] In addition, the connecting bracket of the present invention joins a pillar and a climbing beam which are substantially abutted at a corner portion of an inner surface which is continuous in a substantially L-shape using a fixing means, At the center of the front and rear width of each inner surface of the pillar and the climbing beam, the inclined piece is fixed in contact with the center, and the supporting piece that holds the inclination angle of both inclined pieces is climbed at two places before and after the two inclined pieces. It is characterized in that each support piece is interposed in parallel with the side surface of the beam, and the upper part of each support piece is formed in a substantially rectangular shape in contact with the front and rear edges of the inner surface of the pillar and the climbing beam.

The above-mentioned two connection fittings may have any structure as long as the pair of inclined pieces and the pair of support pieces are integrated. The following are three examples. One example is an integrated product in which a pair of inclined pieces and a pair of support pieces are continuous by welding.
In two examples, each support piece is formed from two plate bodies, and right and left side bodies having a substantially U-shaped cross section are provided by connecting the plate bodies before and after the inclined piece, respectively. In this structure, the parts are overlapped with each other, are pivotally supported at the top of the center, and are fixed so as not to swing at the lower part of the center. In three examples, the pair of inclined pieces and the pair of support pieces are separate pieces, the central piece of the U-shaped bracket opening downward is the inclined piece, and the front and rear pieces are connected to the support piece. It is a structure to do.

[0013] Since the inverted V-shaped angle at which a pair of climbing beams abuts is usually different for each house, when the supporting piece is a single plate, it is necessary to prepare various kinds of supporting pieces having different inverted V-shaped angles. However, in order to correspond to all angles with one type of support piece, the structure of each support plate overlaps the left and right plate bodies at the center part, pivotally supports the overlapping tops, and overlaps What is necessary is just to fix in a lower part so that it cannot swing. Note that the same can be said for the angle in a substantially rectangular shape where the pillar and the ascending beam abut.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The outline of a first example of a wooden arch structure of the present invention is shown in FIG.
The first example of the connecting metal fitting 2 is abutted on the climbing beam 1 and fixed by the fixing means 3 at the corner of the bottom of the ridge, and the auxiliary metal fitting is housed inside the ridge. 4
Is joined to each climbing beam 1 by the fixing means 3. Although not shown in the drawings, a pair of climbing beams 1, 1
Are arranged in rows at intervals in the front-rear direction, and are all joined together by the connecting fitting 2, the auxiliary fitting 4, and the fixing means 3.

Next, each component will be described in detail. As shown in FIG. 1, each climbing beam 1 has an engaging groove 5 for accommodating an auxiliary fitting 4 formed in the center of the front-rear width of the abutting surface along the vertical direction, and the center of the front-rear width of the bottom surface. In the lower part, a plurality of fitting holes 6 for accommodating a part of the connection fitting 2 are formed at a lower portion slightly away from the abutted portion at intervals along the longitudinal direction. Further, on the side surface, a plurality of holes 7, 7 communicating with the engaging groove 5 are provided at intervals vertically, and a plurality of holes 8, 8 communicating with the inner part of each fitting hole 6 are opened. A pin P as the fixing means 3 is driven into each of the holes 7 and 8. The height of each hole 8 is changed to make the column hard to break. The butting surface is perpendicular to the ground.

The first example of the connecting metal fitting 2 is that a bracket 9 is attached to the lower part of the bottom of each climbing beam 1 at the center of the front-rear width, and a little away from the abutted portion, in a state of hanging down by the fixing means 3. Support strips 10 at the front and rear edges of the front and rear width of the bottom
Are arranged in a state where their upper end surfaces are in contact with each other and are parallel to the side surfaces of the climbing beams, and the overlapping portions of the pair of support pieces 10, 10 and the pair of brackets 9, 9 are connected by bolts B and nuts N. It is integrated in a state where it is clamped.

As shown in FIG. 2, the bracket 9 has a U-shaped cross section that opens downward, and the central piece is an inclined piece 11 that abuts the center of the bottom of the climbing beam 1 in the front-rear direction. The connection piece 12 overlaps a part of the piece 10. A plurality of cup-shaped protrusions 13 which protrude into the entrance portion of the fitting hole 6 are provided at intervals in the longitudinal direction at the center of the front and rear widths of the inclined piece 11, and a hole 14 is formed on the upper surface of the protrusion 13. It is open. Also, holes 15 are formed at a plurality of opposing positions of the connection pieces 12, 12. In addition, the projection 13 has a function of making it difficult for the position of the bracket 9 to be displaced even when the tree becomes thin.

The fixing means 3 for fixing the bracket 9 to the climbing beam 1 includes a sheath tube 16 inserted into the inner side of the fitting hole 6 as shown in FIG. By inserting the portion into a hole 17 opened in the upper part of the sheath tube 16, the sheath tube 6 is fixed to the back side, and one end of the rod 18 is screwed into the lower part inside the sheath tube 16, and the In this structure, the end is inserted into the projection 13 through the hole 14 and the nut N is screwed into the projection 13 to be integrated.

As another fixing means 3 for the bracket 9, as shown in FIG. 6, a bolt B and a nut N may be simply used. In this case, the fitting hole 6 is opened in the climbing beam 1 until it reaches the upper surface. Then, a nut N is screwed into the bolt B inserted from the bottom surface side into the hole 14 of the projection 13 from the bottom surface side and fixed.
The upper and lower ends of the fitting hole 6 are formed in a counterbore shape, so that the protrusion 13 and the nut N can be accommodated well and the appearance is improved.

As shown in FIG. 1, the support piece 10 has a substantially triangular shape having an inverted V-shaped upper portion, and the inclination angle of each of the right and left upper sides is formed corresponding to the inclination angle of the climbing beam 1. An elongated hole 19 is opened at a position corresponding to the hole 15 of the piece 12 so that the elongated hole 19 communicates with the hole 15 even if the height position at which the bracket 9 is attached to the climbing beam 1 is slightly shifted.

The auxiliary fitting 4 has a pair of communicating engagement grooves 5,
5 is a flat plate that is slidably inserted into the upper and lower portions, both of which are formed in an inverted V-shape, and a hole 20 communicating with the hole 7 formed in the side surface of the climbing beam 1 is formed. In addition, even if a force is applied in the direction in which the butted surfaces are shifted by the auxiliary metal fittings 4, the force can be prevented.

In the first example of the wooden arch structure, the front and rear surfaces and the bottom surface of the support piece 10 are covered with concealing plates S, respectively, so that the connecting fitting 2 is not visible.

Next, a second example of the wooden arch structure of the present invention will be described. As shown in FIG. 7, the lower end face of the climbing beam 1 and the upper end face of the pillar H are abutted to connect the pillar H and the climbing beam 1 in a substantially rectangular shape and connect the corners of the abutted inner surface. It is characterized in that it is joined using the metal fitting 2 and the butted surfaces are joined using the auxiliary metal fitting 4. Note that the upper end surface of the pillar H and the lower end surface of the climbing beam 1 have a structure that is inclined outward and upward.

Finally, another example of the connecting fitting 2 will be described.
The second example of the connection fitting 2 is characterized by the support piece 10. As shown in FIG. 3, the support piece 10 is formed by superimposing the left and right plate bodies 21 and 21 back and forth at the center so that the upper part becomes an inverted V-shape, and the top of the superimposed portion can be swung. And the lower part of the overlapped portion is connected so as to be non-swingably fixed.

The method of supporting and connecting the two support pieces 10,
The pipes 22 are respectively interposed between the tops of the pipes 10 and between the lower portions of the central portions, and the bolts B are passed from one of the support pieces 10 to the other support pieces 10 through the respective pipes 22.
And the nut N is fastened. Also, since both plate members 21 and 21 are bilaterally symmetrical, only one of them will be described. The left plate member 21 is substantially rectangular, the upper side is inclined downward to the left shoulder, the right part is a superposed part, and the upper part of the right part is A hole 23 for supporting the shaft is formed, and an arc-shaped hole 24 centering on the shaft supporting portion is formed below the right side portion. Further, in order to improve the strength of the connection fitting 2, a bolt B used for connecting the bracket 9 and the support piece 10 is passed through a pipe 22 interposed between the front and rear connection pieces 12, 12, and both ends are connected by the pipe 22. The spacing between the pieces 12, 12 is maintained.

The second example of the connecting fitting 2 has a structure in which the distance between the front and rear plates 21 and 21 located on the left side is different from the distance between the front and rear plates 21 and 21 located on the right side. Therefore, the left and right brackets 9 and 9 have different front and rear widths. More specifically, the front support piece 10 overlaps the left plate body 21 behind the right plate body 21, and the rear support piece 10 overlaps the left plate body 21 in front of the right plate body 21.
Are superposed.

As shown in FIG. 4, a third example of the connection fitting 2 is as follows.
In order to use the same product for the left and right brackets 9, 9, the interval between the front and rear plate members 21, 21 located on the left side is equal to the interval between the front and rear plate members 21, 21 located on the right side.
Specifically, each of the front and rear support pieces 10 has a structure in which the left plate 21 is superimposed on the rear of the right plate 21.

As shown in FIG. 5, a fourth example of the connection fitting 2 is as follows.
Left side body 25 and right side body 26 that open downward and have a U-shaped cross section
Are overlapped back and forth at the center thereof, the top of the overlapped portion is pivotally supported by a bolt B and a nut N, and the lower portion of the overlapped portion is non-swingably connected by a bolt B and a nut N. It is the structure which did. In each of the side bodies 25 and 26, the center piece is the above-described inclined piece 11, and the front and rear side pieces are the plate 21.
Becomes

[0029]

According to the first aspect of the present invention, since the connecting metal fittings are fixed to the bottom sides of the right and left climbing beams abutting in an inverted V-shape in a state in which they are in contact with each other, the downwardly extending hanging from the top of the ridge. This makes it possible to make a strong connection that can withstand the force and eliminate the need to set up pillars or bundles under the ridge or climbing beam, thereby creating a large space in the attic.

According to the second aspect of the present invention, since the connecting metal fitting is fixed to the substantially continuous inner surface of the butted pillar and the climbing beam in a state of abutting on the pillar and the climbing beam, a stronger connection is achieved. And improve safety.

According to the third aspect of the present invention, the connecting bracket has a hollow shape in which the left and right inclined pieces and the front and rear supporting pieces surround the front, rear, left and right surfaces, and the hollow mold has a strong shape that is not easily deformed. The butted state of the beams can be reliably maintained. In addition, the support pieces are provided in a state parallel to the side surfaces of the climbing beams, and the upper portions of the support pieces are formed in an inverted V-shape to contact the front and rear edges of the bottom surfaces of both climbing beams, and are hung from above the ridge. Since the structure in which the pair of climbing beams are abutted by a downward force is not deformed, the pair of climbing beams can be firmly connected.

The connecting bracket according to the fourth aspect can firmly connect the column and the climbing beam that are substantially butted to each other.

According to a fifth aspect of the present invention, the pair of inclined pieces and the pair of support pieces are separate products, and the central piece of the downwardly opening U-shaped bracket is an inclined piece, and the front and rear side pieces are provided. Since it is a structure that is a connecting piece to the supporting piece, if an inverted V-shaped supporting piece of a different angle is prepared in advance, even if a pair of climbing beams are butted at any angle, it corresponds to that angle. Use of the support piece is useful because the bracket does not need to be changed. The same effect can be obtained also when connecting the pillar and the climbing beam.

According to a sixth aspect of the present invention, the structure of each support plate is such that the left and right plates are overlapped at the center, the overlapping tops are pivotally supported, and the overlapping lower portions are not swingable. Is very useful because a pair of climbing beams can be used at any angle. The same effect can be obtained also when connecting the pillar and the climbing beam.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first example of a wooden arch structure of the present invention and a first example of a connection fitting.

FIG. 2 is an enlarged perspective view of a bracket which is a component of the first example of the connection fitting.

FIG. 3 is a plan view, a front view, a right side view, and a cross-sectional view taken along the line AA showing a second example of the connecting bracket (a), (b), (c), and (d).

FIG. 4 is a plan view showing a third example of the connection fitting.

FIG. 5 is a plan view, a front view, a right side view, and an AA sectional view showing a fourth example of the connection fitting.

FIG. 6 is a partially cutaway front view showing a connection state of the climbing beams in an enlarged manner.

FIG. 7 is a front view showing a second example of the wooden arch structure of the present invention.

FIG. 8 is a front view showing a conventional wooden house.

FIG. 9 is a front view showing another example of a conventional wooden house.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Climbing beam 2 Connecting metal fitting 3 Fixing means 9 Bracket 10 Supporting piece 11 Inclined piece 12 Connection piece H pillar

Claims (6)

[Claims] 1. A pair of climbing beams (1, 1) are erected in an inverted V-shape between upper sides of a pair of pillars (H, H) which are erected at right and left sides. The connecting metal fittings (2) are arranged at the corners of the bottom surface continuous with the mold in a state of contacting both climbing beams (1, 1), and the connecting metal fittings (2) are fixed to each climbing beam (1). A wooden arch structure fixed by 3). 2. The wooden arch structure according to claim 1, wherein the pillar (H) and the climbing beam (1) are abutted in a substantially rectangular shape, and a connecting metal fitting is provided at a corner portion of an inner surface which is substantially continuous in a rectangular shape. (2) is arranged in contact with the column (H) and the climbing beam (1), and the connecting fittings (2) are fixed to the column (H) and the climbing beam (1) by fixing means (3), respectively. A wooden arch structure characterized by the existence. 3. A connecting metal fitting (2) for joining left and right climbing beams (1, 1) butted in an inverted V-shape at a corner portion of a bottom surface continuous with the inverted V-shape using a fixing means (3). ), And an inclined piece (1) is provided at the center in the front-rear width of the bottom surface of each climbing beam (1).
1) is fixed in a contact state, and both inclined pieces (1) are fixed.
Two inclined pieces (11, 1)
The support pieces (10) holding the inclination angle of (1) are interposed in parallel with the side faces of the climbing beam (1), and the upper portions of the support pieces (10) are placed on both climbing beams (1, 1). A connecting metal fitting having an inverted V-shape contacting the front and rear edges of the bottom surface. 4. A connecting metal fitting (3) for joining a pillar (H) and an ascending beam (1), which are abutted in a substantially rectangular shape, using fixing means (3) at a corner portion of an inner surface continuous in a substantially rectangular shape. 2), wherein the inclined piece (11) is fixed in contact with the central part of the front and rear width of each inner surface of the column (H) and the climbing beam (1), and is fixed between the two inclined pieces (11, 11). The two inclined pieces (1
The support pieces (10) holding the inclination angles of (1, 11) are interposed in parallel with the side surfaces of the climbing beam (1), and the upper part of each support piece (10) is connected to the column (H) and the climbing beam. (1) A connecting bracket having a substantially rectangular shape which abuts on the front and rear edges of the inner surface. 5. A bracket (9) having a U-shaped cross section, wherein the pair of inclined pieces (11, 11) and the pair of support pieces (10, 10) are separate articles and open downward.
3. The center piece of the first embodiment is an inclined piece, and the front and rear pieces are connection pieces to a support piece.
Or the connection fitting of 4. 6. The structure of each of the support plates (10) is such that the left and right plates (21, 21) are overlapped at the center, the overlapping tops are pivotally supported, and the overlapping lower portions are pivoted. The connection fitting according to claim 5, wherein the connection fitting is fixed immovably.