JPH09291602A - Manufacture of roof unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve workability and productivity by prefabricating a roof body constituted such that a plurality of sarking support frames are arrange, a ridge pole between the top parts of the sarking support frames, a sarking is stretched between the upper surfaces of the ridge pole and a rafter. SOLUTION: Sarking support frames 5, containing a rafter 4, assembled approximately in a triangular shape are arranged at intervals of a proper distance on a work table outside a main manufacture line by a jig. After a rafter 6 is spaned between the top parts of the support frames 5 for mounting, a sarking 7 is stretched between the upper surfaces of the rafter 6 and the rafter 4 to integrally assemble a roof body 3. Next, a roof unit 1 is constituted such that the roof body 3 is transferred to a main manufacture line, a pair of gable friezes 15 and girder trusses 11 and 12, being a roof body support body, are joined with the two side parts on the gable side and a front part and a rear part on the girder side. By assembling the roof body 3 outside the main manufacturing line, a residence time on the main manufacturing line is shortened and workability and productivity are improved.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a method for manufacturing a roof unit having a ridge.

[0002]

2. Description of the Related Art A unit building is known as a method for industrializing buildings such as houses (Japanese Patent Publication No. 61-15).
No. 83 publication). In this unit building, the building is divided into a plurality of transportable units, manufactured in a factory, and then joined at a construction site to complete the building. This unit building is composed of a building unit that constitutes a building body portion and a roof unit that constitutes a roof portion.

As the roof unit, for example, as disclosed in Japanese Examined Patent Publication No. 6-72457, a roof panel and a supporting panel for supporting the roof panel can be joined to each other. ing.

When assembling a roof unit having a ridge, a pair of gable small walls 15 and girder trusses 11 and 12 are combined and then the girder truss 1 is assembled as shown in FIG.
A plurality of field board support frames (also referred to as Nakatsuma trusses) 5, which are assembled in a substantially triangular shape including rafters 4 on 1 and 12, are attached one by one, and then the purlins are attached to the tops of these field board support frames 5. 6 is laid over, and a base plate is stretched on the upper surfaces of the purlins 6 and the rafters 4.

[0005]

However, in the roof unit manufacturing method described above, since the roof plate support frames 5 are mounted one by one, the residence time of the roof unit on the manufacturing line becomes long and the productivity is improved. There is a limit. In addition, for the highest roof unit, the purlin 6 is fixed to 2
Since it exceeds m, there is a problem that workability is poor because a stepladder or the like is required.

Therefore, the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a method of manufacturing a roof panel which can improve workability and productivity.

[0007]

In order to achieve the above object, in the method for manufacturing a roof unit according to claim 1 of the present invention, a plurality of field board support frames assembled in a substantially triangular shape including rafters. The purlins are lined up side by side and the purlins are hung over the tops of the roofboard support frames, and the roofboards are also preassembled on the upper surfaces of the purlins and the rafters, and both sides and front and rear portions of the roof are preassembled. The roof support is joined to at least two of the four sides.

A roof unit manufacturing method according to a second aspect of the present invention is characterized in that beam members for joining the roof support members are provided at the front and rear portions of the roof body.

[0009]

According to the method of manufacturing a roof unit according to the first aspect of the invention, a plurality of base plate support frames that are assembled in a substantially triangular shape including rafters are arranged, and the purlins are hung on the tops of the base plate support frames. In order to preassemble a roof body made by stretching a base plate on the upper surface of the purlin and the rafters, and to join the roof support body to both sides of this roof body and at least two sides of the front and rear sides. , Work at height can be reduced. Also, if the roof body is assembled outside the main production line, the residence time on the main production line can be shortened, and workability and productivity can be improved.

According to the method of manufacturing a roof unit according to the second aspect of the invention, since beam members for joining the roof body support member are provided at the front and rear portions of the roof body, The work of joining the roof support can be easily performed, and workability and productivity can be further improved.

[0011]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

1 to 3, reference numeral 1 denotes a roof unit having a ridge portion 2, and the roof unit 1 includes a roof body 3 which is integrally assembled in advance. This roof body 3
As shown in FIG. 2, a plurality of base plate support frames (Nakazuma truss) 5 that are assembled in a substantially triangular shape including the rafters 4 are arranged at appropriate intervals, and the purlins 6 are hung on the tops of the base plate support frames 5. Along with passing, a field board 7 is stretched on the upper surfaces of the purlin 6 and the rafters 4 (the field board 7 is not shown in FIG. 1).

More specifically, the field board support frame 5 is
The vertical members 9a and 9b having different lengths located at the ridge and the rear end are joined to the horizontal member 8 made of a plate material, and between the upper end of the vertical member 9a of the ridge and the front end of the horizontal member 8 and both vertical members 9a. , 9b Rafters 4a and 4b are respectively hung between the upper end portions, and both vertical members 9a,
A diagonal member 10 is laid between 9b to form a truss structure.

The field board support frames 5 are arranged, for example, on a workbench outside the main manufacturing line by jigs or the like at appropriate intervals, and the purlins 6 are attached to the tops of the field board support frames 5 so as to extend over them. Later, this purlin 6 and the rafter 4 (4
By sticking the base plate 7 on the upper surface of a, 4b),
Assemble the roof body 3 integrally. The girder trusses 11 and 12 are joined to the front and rear portions of the roof body 3, but in order to facilitate the joining work and to improve the strength of the roof body 3, between the front end portions of the cross members 8 and It is preferable that beam members (also referred to as sub-assembling beams) 13 and 14 are hung and attached between the rear end portions.

Then, the roof body 3 is transferred to a main manufacturing line, and a pair of gable small walls 15 as roof body support members are formed on both sides of the roof side of the roof body 3 and on the front and rear sides of the girder side. By connecting the girder trusses 11 and 12, respectively,
The roof unit 1 is completed. The gable small wall 15 is composed of a panel body in which a face member is stretched over a frame, and is joined to the gable end of the roof body 3 by nailing. Front girder truss 11 above
Has a truss structure in which a plurality of vertical members 18 and diagonal members 19 are appropriately provided between the upper chord member 16 and the lower chord member 17, and the upper chord member 16 is provided on the front surface of the front beam member 13 of the roof body 3. They are brought into contact with each other and joined by nailing.

The rear girder truss 12 has an upper chord member 21 between the upper ends of the vertical frames 20 on both sides and a lower chord member 2 between the middle portions.
2, and a plurality of vertical members 23 and diagonal members 24 are appropriately provided between the upper chord member 21 and the lower chord member 22 to form a truss structure, and the truss portion is located at the rear portion of the roof body 3. It is brought into contact with the rear surface of the material 9b or the like and joined by nailing. In this case, the lower chord member 22 of the rear girder truss 12 overlaps the upper portion of the rear beam member 14 of the roof body 3. The gable small wall 15 and the girder trusses 11 and 12 joined to the periphery of the roof body 3 in this manner are joined to each other by nailing at adjacent portions.

According to the method of manufacturing the roof unit 1 constructed as described above, a plurality of base plate support frames 5 including the rafters 4 and assembled in a substantially triangular shape are arranged side by side, and the purlins 6 are provided on top of the base plate support frames 5. The roof body 3 formed by stretching the roof boards 7 on the upper surfaces of the purlins 6 and the rafters 4 is integrally assembled in advance, and a pair of side portions and front and rear portions of the roof body 3 are provided. Since the gable small wall 15 and the girder trusses 11 and 12 are joined, work at high places can be reduced. Further, if the roof body 3 is assembled outside the main production line, the residence time on the main production line can be shortened and workability and productivity can be improved.

Beam members 13 and 14 for connecting the girder trusses 11 and 12 to the front portion and the rear portion of the roof body 3, respectively.
Since it is provided, the girder truss 1 for the roof 3
The joining work of 1 and 12 can be performed easily, and workability and productivity can be further improved.

The embodiments of the present invention have been described in detail above with reference to the drawings. However, the specific configuration is not limited to the above-mentioned embodiments, and changes in the design within the scope not departing from the gist of the present invention are possible. Even if it exists, it is included in the present invention. For example, in the above-mentioned embodiment, the roof body supports are joined to the both sides of the roof body and the four sides of the front and rear portions, but the roof body supports may be joined to at least two sides of the roof body.

[0020]

In summary, according to the present invention, the following excellent effects can be obtained. (1) According to the method for manufacturing a roof unit according to claim 1, a plurality of base plate support frames that are assembled in a substantially triangular shape including rafters are arranged, and a purlin is hung on the tops of the base plate support frames. In order to preassemble a roof body made by stretching a base plate on the upper surface of the purlin and the rafters, and to join the roof support body to both sides of this roof body and at least two sides of the front and rear sides. , Work at height can be reduced. Also, if the roof body is assembled outside the main production line, the residence time on the main production line can be shortened, and workability and productivity can be improved. (2) According to the method for manufacturing a roof unit according to claim 2, since beam members for joining the roof body support member are provided at the front portion and the rear portion of the roof body, Girder truss connection work can be done easily, and workability and productivity can be further improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing a configuration of a roof unit that is an embodiment of the present invention.

FIG. 2 is a side sectional view of a roof body that constitutes the roof unit of FIG.

FIG. 3 is a side sectional view showing a state in which a girder truss is joined to the front part and the rear part of the roof body.

FIG. 4 is a perspective view showing a conventional roof unit manufacturing method.

[Explanation of symbols]

 1 roof unit 3 roof body 4 rafters 5 field board support frame 6 purlin 7 field board 11,12 girder truss (roof body support) 13,14 beam material 15 gable small wall (roof body support)

Claims (2)

[Claims] 1. A plurality of base plate support frames assembled in a substantially triangular shape including rafters are lined up, and a purlin is hung on the tops of these plank support frames, and a plan plate is stretched over the purlin and the rafters. A method for manufacturing a roof unit, comprising pre-assembling a roof body having the above structure, and joining the roof body support to at least two sides of the roof body on both sides and front and rear sides. 2. The method of manufacturing a roof unit according to claim 1, wherein beam members for joining the roof support members are provided on front and rear portions of the roof member.