JP2021147982A - Ridge roof unit - Google Patents

Abstract

To mainly improve a productivity of a ridge roof unit.SOLUTION: A ridge roof unit 3 has an inclined surface forming material 17 for forming two inclined surfaces 7 and 8 on a unit frame 16 consisting of a pair of parallel girder trusses 14 and a pair of parallel transverse small walls 15. The inclined surface forming material 17 has an inclined surface formation panel 25 having an outer frame 23 assembled with one ridge board 21 and two parallel end rafters 22 in a plan view U-shape, and an intermediate frame member 24 installed inside the outer frame 23. The inclined surface formation panel 25 is installed on a crest of the unit frame 16 arranging the ridge board 21 toward a girder direction 11 in the state of making two ridge boards 21 face each other to be coupled in a crest shape.SELECTED DRAWING: Figure 2

Description

The present invention relates to a ridge roof unit.

The roofs of buildings such as detached houses and apartment houses are composed of roof units. For example, in the case of a gable roof having a general shape, the roof can be composed of a ridge roof unit and an eaves roof unit (see, for example, Patent Document 1).

The ridge roof unit is assumed to have two mountain-shaped inclined surfaces at the upper part, and the eaves roof unit is assumed to have one inclined surface continuous with one of the inclined surfaces of the ridge roof unit at the upper part. .. The eaves roof unit is installed on one side or both sides of the ridge roof unit.

Japanese Unexamined Patent Publication No. 11-256747

In the existing ridge roof unit, two inclined surfaces were formed by multiple Nakatsuma trusses made of timber in a triangular shape, but in the Nakatsuma truss, the diagonal processing of wood is increased, and wood is also used. It is necessary to use metal fittings to connect the metal fittings, and by manufacturing these metal fittings by press processing, there are problems such as long assembly time and poor productivity.

Therefore, the main object of the present invention is to contribute to the improvement of the above-mentioned problems.

In response to the above problems, the present invention
A pair of parallel girder trusses that define the planes in the girder direction,
On the unit frame part composed of a pair of parallel wife small walls that define the surface in the direction of the wife,
A ridge roof unit in which a slope forming material is installed to form two slopes that descend in two directions from the position of the ridge that is the top of the roof toward both sides in the direction of the wife.
The slope forming material is
An outer frame part in which one ridge tree and two wife rafters parallel to each other are assembled in a U-shape in a plan view,
It has a slope forming panel having an inner frame member installed inside the outer frame portion, and has.
The slope forming panel is characterized in that the purlins are installed on the unit frame portion with the purlins facing the girder direction in a state where the purlins are joined together and the two are connected in a mountain shape. ..

According to the present invention, the productivity of the ridge roof unit can be improved by the above configuration.

It is a block diagram of the roof which concerns on Example 1. FIG. It is a figure which shows the ridge roof unit of FIG. Of these, (a) is an overall perspective view of the ridge roof unit, and (b) is a perspective view of a slope forming panel provided on the ridge roof unit. It is a figure which shows the process of forming two inclined surfaces of a ridge roof unit with a slope forming material, and is the figure which shows the process of manufacturing the frame part of the slope forming panel. It is a figure which shows the process of fixing a field board with respect to the frame part of the slope formation panel. It is a figure which shows the process of connecting the slope forming panels together in a mountain shape. It is a figure which shows the process of arranging two slope forming panels connected in a mountain shape in the girder direction, and connecting them to each other. It is a figure which shows the ridge roof unit which concerns on Example 2. FIG. Of these, (a) is an overall perspective view of the ridge roof unit, and (b) is a perspective view of a slope forming panel provided on the ridge roof unit. It is the whole perspective view of the ridge roof unit which concerns on a comparative example. It is a front view of the wife truss of FIG.

Hereinafter, the present embodiment will be described in detail with reference to the drawings.
1 to 6 are for explaining this embodiment.

<Structure> The configuration of this embodiment will be described below.

As shown in FIG. 1, the roof 1 of a building such as a detached house or an apartment house is composed of a roof unit 2. This roof 1 is a gable roof having a general shape, and the gable roof is composed of a ridge roof unit 3 and an eaves roof unit 4. Of these, the ridge roof unit 3 shall have a ridge 6 located at the top and two inclined surfaces 7 and 8 descending from both sides of the ridge 6 in two directions. It is assumed that the eaves roof unit 4 has one inclined surface 9 continuous with the inclined surfaces 7 and 8 of either one of the ridge roof units 3. The eaves roof unit 4 is installed on one side or both sides of the ridge roof unit 3.

Here, the building may have any structure, but it is preferably a unit building. A unit building is a building that can be constructed in a short period of time by transporting a building unit manufactured in advance at a factory to a construction site and assembling it at the construction site. The building itself is composed of a plurality of building units.

The roof 1 is a structure that is installed on the upper part of the building body and protects the building body. Like the building unit, the roof unit 2 is manufactured in advance at the factory, transported to the construction site, and installed on the upper part of the building body composed of the building unit.

The gable roof is a mountain-shaped roof 1 that combines two sloping roof surfaces. The two inclined roof surfaces of the gable roof are formed by the two inclined surfaces 7 and 8 on the upper part of the ridge roof unit 3 and the inclined surfaces 9 on the upper part of the eaves roof unit 4. The ridge roof unit 3 is a roof unit 2 located at the center of the gable roof. The eaves roof unit 4 is a roof unit 2 located at the end of the gable roof.

The ridge 6 is a joint line of two inclined roof surfaces, which is the top of the gable roof, and the ridge 6 is extended in the girder direction 11 of the roof 1.

The two directions are the directions away from the building 6 (wife direction 12) on both sides of the building 6.

The inclined surfaces 7 and 8 are downhill surfaces in which the height of the vertical direction 13 decreases as the distance from the building 6 toward both sides in the wife direction 12 increases. Each of the inclined surfaces 7 and 8 is a flat slope.

Of these, as shown in FIG. 2A, the ridge roof unit 3 is
A pair of parallel girder trusses 14 defining faces in the girder direction 11 and
A unit frame portion 16 composed of a pair of parallel wife small walls 15 defining a surface in the wife direction 12 is provided (at the lower part).
Then, on the unit frame portion 16, the slope forming material 17 for forming two inclined surfaces 7 and 8 descending in two directions from the position of the ridge 6 which is the top of the roof 1 toward both sides in the end direction 12. Is installed.

Here, the girder direction 11 is the longitudinal direction of the unit frame portion 16 and is the extension direction of the building 6.

The girder truss 14 is a frame having a substantially rectangular side view in which both ends of the upper member 14a and the lower member 14b extending horizontally with respect to the girder direction 11 are connected in a rectangular shape by a pair of vertical members 14c extending in the vertical direction 13. Will be done. The girder truss 14 is reinforced by connecting the lower portion of the vertical member 14c and the intermediate portion of the upper member 14a with the diagonal member 14d. The upper member 14a, the lower member 14b, the pair of vertical members 14c, and the diagonal members 14d are aligned with each other so that the plate surfaces are perpendicular to the end direction 12 and are flush with each other by using the metal fittings 14e. Be connected.

The end direction 12 is the lateral direction of the unit frame portion 16 and is orthogonal to the building 6.

The wife small wall 15 will be described later.

The unit frame portion 16 is a three-dimensional frame body extending in the vertical direction 13 having a rectangular shape in a plan view formed by connecting the ends of the pair of wife small walls 15 between the ends of the pair of girder trusses 14. It serves as a support portion for supporting the two inclined surfaces 7 and 8 at a required angle and at a required height.

The top is the highest part of the ridge roof unit 3, which is ridge 6.

The two inclined surfaces 7 and 8 have the same downward slope in this embodiment and are formed to have the same length.

The slope forming material 17 is a mountain-shaped structural material for forming two mountain-shaped roof surfaces of a gable roof (or two inclined surfaces 7 and 8 of the ridge roof unit 3).

The ridge roof unit 3 is a roof unit 2 located in the central portion of the gable roof and forming the periphery of the ridge 6 above the gable roof.

In contrast to the above configuration, in this embodiment, the following configuration can be provided.

(1) As shown in FIG. 2 (b), in the ridge roof unit 3, the slope forming material 17 is
An outer frame portion 23 in which one ridge tree 21 and two wife rafters 22 parallel to each other are assembled in a U-shape in a plan view, and
It is assumed that the slope forming panel 25 having the middle frame member 24 installed inside the outer frame portion 23 is provided.
The slope forming panel 25 is installed on the unit frame portion 16 with the purlins 21 facing the girder direction 11 in a state where the purlins 21 are joined together and the two are connected in a mountain shape.

Here, the purlin 21 is wood that is stretched horizontally with respect to the girder direction 11 in order to form the ridge 6, and is installed with the board surface facing the direction perpendicular to the end direction 12. The end of the purlin 21 is cut vertically.

The wife rafters 22 are wood that is extended downward in the direction of the wife 12 in order to form the slopes of the inclined surfaces 7 and 8, and the board surface is installed so as to be perpendicular to the girder direction 11. NS. The end of the wife rafter 22 is cut diagonally according to the inclination of the inclined surfaces 7 and 8. The end portion of the end rafter 22 is directed to the vertical direction 13 when the slope forming panel 25 is installed on the unit frame portion 16. The board surface of the wife rafters 22 is formed to have substantially the same width as the board surface of the ridge tree 21, the board surface of the middle frame member 24, and the board surface of the upper member 14a of the girder truss 14.

The outer frame portion 23 is a frame body that constitutes the outer shape of the slope forming panel 25, and is a flat surface in which one side on the lower end side is opened by connecting the upper end portions of the pair of rafters 22 to both ends of the ridge tree 21. It has a rectangular shape (U-shaped in plan view). The outer frame portion 23 is finally closed by the upper member 14a of the girder truss 14.

When forming the outer frame portion 23, as shown in FIG. 2, the purlin 21 is formed to have a length equal to the distance between the outer surfaces of the wife rafters 22 constituting the outer frame portion 23, and the wife rafters are formed. The purlin 21 may be connected to the rafters 22 by nailing (nail 26) from the outside in the direction of the wife 12 with the inner surface abutting on the upper end of the 22. The purlin 21 may be connected to the rafters 22 as shown in FIG. 3A. In the girder direction 11, the length is equal to the distance between the inner side surfaces of the rafters 22 constituting the outer frame portion 23, and the end faces are in contact with the inner side surfaces of the upper end of the rafters 22. It may be connected to the wife rafters 22 by nailing (nail 26) from the outside.

In other words, as shown in FIG. 2, even if the end rafter 22 is connected to the ridge 21 by nailing from the outside in the wife direction 12 with the upper end abutting against the inner side surface of the end of the ridge 21. Good, as shown in FIG. 3A, the wife rafter 22 is connected to the purlin 21 by nailing from the outside in the girder direction 11 in a state where the end of the purlin 21 is in contact with the inner surface of the upper end. You may.

The middle frame member 24 will be described later.

The slope forming panel 25 is a panel-shaped member that forms a part of the slope forming material 17, and is two in order to form two mountain-shaped inclined surfaces 7 and 8 on the upper part of the ridge roof unit 3. Used. Then, by connecting the two slope forming panels 25 to each other by aligning the purlins 21 with each other, the slope forming material 17 forming the two mountain-shaped inclined surfaces 7 and 8 is formed.

Hereinafter, a step of forming the slope forming material 17 to be the two mountain-shaped inclined surfaces 7 and 8 on the upper part of the ridge roof unit 3 will be described.

First, as shown in FIG. 3A, the ridge tree 21 and the wife rafters 22 are connected to form a U-shaped outer frame portion 23 in a plan view, and the middle frame member 24 is attached inside the outer frame portion 23. Therefore, the frame portion of the slope forming panel 25 is formed.

Next, as shown in FIG. 3B, by fixing the roof surface material (or roof base material) such as the field board 27 to the entire upper surface of the frame part described above, the frame part is reinforced by the field board 27 and the slope. The forming panel 25 is used. The slope forming panel 25 can be manufactured by using an automatic nailing machine. In the slope forming panel 25, the ridge tree 21, the wife rafters 22, and the middle frame member 24 are connected and fixed with at least the upper portions aligned in the same plane so that the field board 27 can be easily attached.

Then, as shown in FIG. 3C, with the two slope forming panels 25 arranged in the end direction 12, the purlins 21 were brought into contact with each other, placed on the support jig 28, and brought into contact with each other. By connecting the purlins 21 to each other by nailing from the end direction 12, the two slope forming panels 25 are integrated to form the slope forming material 17. At this time, the support jig 28 can support the two slope forming panels 25 in a state of being inclined to opposite slopes so that the two slope forming panels 25 are combined in a mountain shape. A plurality of support jigs 28 are provided, including a U-shaped receiving portion 28a with an open top and support legs 28b for supporting the receiving portion 28a at a required height. The receiving portion 28a has a width dimension that allows two of the ridge tree 21 and the wife rafters 22 to be received at the same time. A plurality of support jigs 28 (six in the figure) having the same receiving portion 28a but different heights of the support legs 28b are prepared. The plurality of support jigs 28 are arranged at positions near both ends of the purlin 21 and near the lower ends of each rafter 22 in a state where the two slope forming panels 25 are combined.

As shown in FIG. 3D, a plurality of slope forming members 17 in which two slope forming panels 25 are connected in a mountain shape are prepared, and in a state where the wife rafters 22 are put together, the unit frame portion 16 (on the girder truss 14 in) is prepared. By arranging the members 14a) in the girder direction 11 by the amount that is approximately the same length as the girder direction 11, and connecting and integrating the wife rafters 22 that are in contact with each other by nailing from the girder direction 11. , The slope forming material 17 is formed to a required size. At this time, if necessary, another short ridge 31 is attached so as to extend the ridge 6, and another wife rafter 32 (FIG. 6) is installed between the tip of the other ridge 31 and the upper member 14a of the girder truss 14. 2) An eaves portion or the like protruding from the unit frame portion 16 may be formed by attaching or the like. In this case, the upper member 14a of the girder truss 14 is formed to have a length of 11 in the girder direction including another purlin 31.

A mountain-shaped slope forming member 17 having substantially the same size as the girder direction 11 of the unit frame portion 16 thus formed is mounted on the unit frame portion 16. At this time, the end rafter 22 is connected to the upper member 14a by nailing from the outside in the end direction 12 with the lower end portion in contact with the inner surface of the upper member 14a of the girder truss 14. As a result, each outer frame portion 23 is closed by the girder truss 14. The end rafter 22 and the upper member 14a of the girder truss 14 are attached in a state where at least the upper portion thereof is aligned with the upper surfaces of the inclined surfaces 7 and 8.

(2) As shown in FIG. 2, the wife small wall 15 has an outer frame body 41 having a substantially pentagonal shape in a side view, and a vertical frame member 42 extending in the vertical direction 13 inside the outer frame body 41. May be installed.

Here, the outer frame body 41 is a frame body that constitutes the outer shape portion of the wife small wall 15. The outer frame 41 is formed between a horizontal lower frame 41a, a pair of side frames 41b that are parallel to each other and have the same height and rise upward from both ends of the lower frame 41a in the vertical direction 13, and an upper end portion of the pair of side frames 41b. The two inclined upper frames 43c and 43d attached to the above frame form a substantially pentagonal shape in a side view. The two inclined upper frames 43c and 43d have the same length and are combined with the mountain shape at the same angle as the two slope forming panels 25 connected to the mountain shape. The two inclined upper frames 43c and 43d are brought into contact with the two slope forming panels 25 (the wife rafters 22) connected in a mountain shape from the lower side, and the two slope forming panels 25 are placed on the lower side. Support in line contact.

A single or a plurality of vertical frame members 42 are provided between the pair of side frames 41b in parallel with the side frames 41b at intervals. The vertical frame member 42 connects the lower frame 41a and the two inclined upper frames 43c and 43d in the vertical direction 13 to support the two inclined upper frames 43c and 43d from the lower side. The plurality of vertical frame members 42 are formed to have different lengths from each other, that is, longer than the side frames 41b and corresponding to the height of the connecting positions of the upper frames 43c and 43d. The vertical frame member 42 is appropriately provided, for example, at a position directly below the purlin 21 and a position between the purlin 21 and the side frame 41b (for example, a position directly below the middle frame member 24). When a single vertical frame member 42 is provided, it is preferable to install it at a position directly below the purlin 21. When a plurality of vertical frame members 42 are provided, it is preferable to install them symmetrically with the position directly below the purlin 21 as the center.

(3) As shown in FIG. 2, the middle frame member 24 may be a girder rafter 51 extending in the girder direction 11 (Example 1).

Here, the girder rafters 51 are wood extending horizontally with respect to the girder direction 11 like the ridge rafters 21, and are installed with the plate surface directed in a direction substantially perpendicular to the inclined directions of the inclined surfaces 7 and 8. The ends of the girder rafters 51 are cut vertically. The girder rafters 51 are formed to have a length equal to the distance between the inner side surfaces of the wife rafters 22 constituting the outer frame portion 23, and the end faces are in contact with the inner side surfaces of the wife rafters 22 in the girder direction 11. It is connected to the wife rafter 22 by nailing from the outside.

(4) As shown in FIG. 4, the middle frame member 24 may be a wife rafter 22 extending in the wife direction 12 (Example 2).

Here, the wife rafters 22 are made of wood extending downward in a downward slope toward the wife direction 12, similar to the wife rafters 22 constituting the outer frame portion 23, and the board surface is directed in a direction perpendicular to the girder direction 11. Will be installed. The end of the wife rafter 22 is cut diagonally according to the inclination of the inclined surfaces 7 and 8. The end portion of the end rafter 22 is directed to the vertical direction 13 when the slope forming panel 25 is installed on the unit frame portion 16. The wife rafters 22 are connected to the purlins 21 by nailing from the outside in the direction of the wives 12 with the end faces in contact with the inner side surfaces of the purlins 21.

<Action> The action of this example will be described below.

The roof 1 of a building such as a detached house or an apartment house is composed of a roof unit 2. The roof 1 is a gable roof having a general shape, and the gable roof is composed of a ridge roof unit 3 and an eaves roof unit 4. The ridge roof unit 3 shall have a ridge 6 located at the top and two inclined surfaces 7 and 8 descending from both sides of the ridge 6 in two directions. It is assumed that the eaves roof unit 4 has one inclined surface 9 continuous with the inclined surfaces 7 and 8 of either one of the ridge roof units 3. The eaves roof unit 4 is installed on one side or both sides of the ridge roof unit 3.

At this time, the ridge roof unit 3 is composed of a pair of parallel girder trusses 14 defining the surfaces in the girder direction 11 and a pair of parallel wife small walls 15 defining the surfaces in the wife direction 12, and the unit frame portion 16 A slope for forming two inclined surfaces 7 and 8 that descend in two directions from the position of the ridge 6 that is the top of the roof 1 toward both sides of the wife direction 12 on the unit frame portion 16. Manufactured by installing the forming material 17.

<Effect> According to this embodiment, the following effects can be obtained.

(Effect 1) The slope forming material 17 was constructed by using the slope forming panel 25. As a result, the slope forming panel 25 can reduce the diagonal processing of wood, and can be produced only by nailing with an automatic nailing machine without the need to use metal fittings for connecting the wood to each other. The work time required for assembling the forming panel 25 and the slope forming material 17 can be reduced, and the productivity can be improved.

Further, the slope forming member 17 formed by connecting the two slope forming panels 25 in a mountain shape is installed on the unit frame portion 16. As a result, the slope forming material 17 can be stably installed on the unit frame portion 16, so that the slope forming material 17 can be easily mounted on the unit frame portion 16, and the total of the ridge roof unit 3 can be installed. The man-hours required for the group can be reduced. At this time, for example, the work of connecting the purlins 21 of the two slope forming panels 25 to each other can be performed from the lower side of the slope forming panels 25, so that it is easy. Further, the work of arranging the two slope forming panels 25 connected in a mountain shape in the girder direction 11 and connecting the adjacent end wall 15s to each other can be performed from the lower side of the slope forming panel 25, so that it is easy. Is.

On the other hand, as shown in the comparative example of FIG. 5, when the slope forming member 17 is formed by a plurality of independent triangular Nakatsuma trusses 61, the Nakatsuma truss 61 is as shown in FIG. , In order to assemble a plurality of timbers (two slanted timbers 61a, b, lower horizontal timbers 61c, and bundled timbers 61d) in a triangular shape, the slanting of the timbers is increased, and there are multiple types of timbers used for connecting the timbers. Since the metal fittings 61e are formed one by one by press working, it takes time to assemble and the productivity deteriorates. Further, since the plurality of independent Nakatsuma trusses 61 cannot stand on their own when installed on the unit frame portion 16 and are not stable, it takes time and effort for the total assembly of the ridge roof unit 3.

Therefore, by forming the slope forming material 17 with the slope forming panel 25, the productivity of the ridge roof unit 3 can be remarkably improved as compared with the case where the Nakatsuma truss 61 is used.

(Effect 2) Since the wife small wall 15 has an outer frame body 41 having a substantially pentagonal shape in a side view, two slope forming panels 25 (slope forming material 17 composed of) connected in a mountain shape are formed on the wife small wall 15. Side view The outer frame 41 having a substantially pentagonal shape can support the outer frame 41 from below. Further, by installing the vertical frame member 42 extending in the vertical direction 13 inside the outer frame body 41, the strength of the end wall 15 in the vertical direction 13 is increased, so that two slope forming panels connected in a mountain shape are formed. When the slope forming material 17 made of 25 is placed on the end wall 15, the support strength of the end wall 15 with respect to the slope forming material 17 can be secured and improved.

(Effect 3) The middle frame member 24 may be a girder rafter 51 extending in the girder direction 11. As a result, the number of girder rafters 51 used can be reduced, and the diagonal cut with respect to the end portion of the girder rafters 51 can be eliminated to improve productivity. Further, by providing the girder rafters 51, a closed cross-section portion is formed in the outer frame portion 23 of the slope forming panel 25 before being attached to the girder truss 14, so that the strength of the outer frame portion 23 can be improved.

(Effect 4) The middle frame member 24 may be a wife rafter 22 extending in the wife direction 12. As a result, the wife rafters 22 which are substantially the same as the wife rafters 22 constituting the outer frame body 41 can be used as the middle frame member 24. Further, since the middle frame member 24 is a wife rafter 22 extending in the wife direction 12, the slope forming material 17 and the slope forming panel 25 are stopped with respect to the girder truss 14 at the end of the wife rafter 22 opposite to the ridge tree 21. By increasing the number of points, it is possible to improve the strength of the slope forming panel 25 and the ridge roof unit 3.

1 roof 3 ridge roof unit 6 ridge 8 sloping surface 8 sloping surface 11 girder direction 12 wife direction 13 vertical direction 14 girder truss 15 wife small wall 16 unit frame part 17 slope forming material 21 ridge tree 22 wife rafter 23 outer frame part 24 middle frame Member 25 Slope forming panel 41 Outer frame body 42 Vertical frame material 51 Girder rafters

Claims (4)

A pair of parallel girder trusses that define the planes in the girder direction,
On the unit frame part composed of a pair of parallel wife small walls that define the surface in the direction of the wife,
A ridge roof unit in which a slope forming material is installed to form two slopes that descend in two directions from the position of the ridge that is the top of the roof toward both sides in the direction of the wife.
The slope forming material is
An outer frame part in which one ridge tree and two wife rafters parallel to each other are assembled in a U-shape in a plan view,
It has a slope forming panel having an inner frame member installed inside the outer frame portion, and has.
The slope forming panel is characterized in that the purlins are installed on the unit frame portion with the purlins facing the girder direction in a state where the purlins are joined together and the two are connected in a mountain shape. Rafter unit. The ridge roof unit according to claim 1.
The ridge roof unit is characterized in that the wife small wall has an outer frame body having a substantially pentagonal shape in a side view, and a vertical frame member extending in the vertical direction is installed inside the outer frame body. .. The ridge roof unit according to claim 1 or 2.
The ridge roof unit is characterized in that the middle frame member is a girder rafter extending in the girder direction. The ridge roof unit according to claim 1 or 2.
The middle frame member is a ridge roof unit characterized by being a wife rafter extending in the direction of the wife.

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