JPH03129048A - Unit type horizontally laid roof structure - Google Patents

Abstract

PURPOSE:To improve workability by arranging rafter members each of which has a bottom wall part and the right and left side wall parts and is formed into groove shape, in the prescribed pitch intervals on each base member, and installing a roof plate member on the rafter member. CONSTITUTION:Rafter members 11 are arranged and fixed in the prescribed pitch intervals on each base member A. Then, the right and left face plate receiving supporting parts 17 and 18 on the underside of the contiguous ratter members 11 are allowed to pass, and a horizontally laid roof plate member 31 on the underside is receiving-supported between the center parts. A suspended member 51 is fixed by a set screw B so as to ride over the right and left face plate receiving supporting parts 17 and 18 of the step difference surfaces 15 and 16 of each rafter member 11. Accordingly, the workability in execution can be improved.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a unit type horizontal roof structure applied to a built-in structure, and more specifically, to a systemized rafter member and horizontal roof plate member. This relates to a metal unit type horizontal roof structure in a relatively simplified horizontal roof structure that is constructed by combining the following:

[Conventional technology]

In general, roof structures that are applied to normal-sized building structures and use metal materials as the main constituent materials have traditionally been broadly divided into vertical roof structures and horizontal roof structures. .

In normal cases, each of these types has a structure that is placed on the main roof material that is placed parallel to the ridge direction (hereinafter also referred to as the lateral direction) of the roof frame that makes up the roof structure to give a predetermined roof slope. perpendicular to the ridge direction (hereinafter also referred to as the vertical direction)
In the former vertical roof structure, a plurality of rafter members are fixedly arranged in parallel at predetermined intervals, and with appropriate roofing boards etc. , using a vertical roofing board member having a face plate part in the center, a plurality of vertical roofing board members are placed in parallel in the horizontal direction between each adjacent rafter member, either directly or as appropriate. By interposing engagement members etc. to engage and fasten, the roof is constructed vertically, and in the latter horizontal roof structure, adjacent comrades can engage with each other on both sides in the longitudinal and lateral directions. Using a horizontal roofing board member having a face plate part in the eave-side engaging part, the ridge-side engaging part, and the center part, a plurality of horizontal roofing board members are straddled between each rafter member to form a step in the vertical direction. It is constructed by building up the roof in the horizontal direction by engaging each other in steps to form a low step-like or serrated shape, and securing and securing them using hangers as appropriate on the inside. be.

[Problem to be solved by the invention]

Therefore, each of the conventional vertical and horizontal roof structures constructed as described above has its own merits and demerits in terms of application to numerically normal scale building structures, and each structure has its own merits and demerits. They are arbitrarily selected and used based on various conditions such as the intended use and surrounding environment of the building structure, as well as requests such as external appearance.

In this case, when comparing the horizontal roof shingle members used in the horizontal roof structure with the vertical roof shingle members of the vertical roof structure, there are structural differences.

The coverage area range of each individual roof sheet member on the roof surface is relatively narrow, and for this reason, its effective width dimension (i.e., equivalent to the roofing width dimension on the roof surface, and the longitudinal length ) is reduced in size, which provides sufficient structural strength and effective wooden shelves, as well as
It has a good external design.

However, on the other hand, the horizontal roof structure of the above structure can be used for relatively small-scale architectural structures such as small houses, storage sheds, bungalows, barbecue houses, temporary buildings, meeting places open to the outdoors, and both buildings. When applying the pupil to a relatively small-scale building structure, such as a place, the effective width of the horizontal roofing board members used is narrowed to accommodate the covered surface, so it is not possible to use vertical roofing. Even if the number of roof shingles and components is the same, there is a disadvantage that the number of roofing work per unit area increases. Since the mating parts are engaged with each other to create a dovetail configuration, a space is inevitably formed on the back side of the face plate part in the effective width range, and the corresponding face plate part is likely to be deflected by positive pressure applied from the outside. Therefore, in order to prevent this, the back side of the roof must be backed up for each level of roofing. Backup materials (wood wool cement boards, urethane foam boards, etc.) need to be inserted separately for field boards, etc., and joining materials such as waste boards are also required to join the longitudinal and lateral ends. These results in one.

Setting aside the case where sufficient measures must be taken to prevent the infiltration of rainwater in each part, as is the case with normal-sized building structures, this type of simplification to a certain extent is acceptable for relatively small-scale buildings. When applying a structure similar to the conventionally used horizontal roofing to a structure, it was a factor that led to an increase in costs, including an increase in the number of man-hours required during construction.

This invention is an attempt to improve such conventional problems, and its purpose is to improve the structure of the horizontal roof structure when it is applied to a relatively small-scale building structure. It is an object of the present invention to provide a unit type horizontal roof structure of this type that improves workability and reduces costs during construction by unitizing members, and also has excellent structural strength and appearance design. .

(Means for Solving the Problems) In order to achieve the above object, a unit type horizontal roof structure according to the present invention has a bottom wall portion and each left and right side wall portions and is shaped like a groove, and each side wall portion has a groove-like structure. At each eave side corresponding to the upper roofing pitch interval, leave each left and right step lid surface in a stepped or sawtooth shape with the eave side step corresponding to the engagement step, and face the left and right side plate receiving branches inward. A rafter member that is bent and arranged at a predetermined pitch interval on each purlin material, and has an effective length in the longitudinal and transverse directions that is the same as or an integral multiple of the arrangement pitch interval, and that has an effective length in the transverse longitudinal direction. Leaving a central face plate part with an effective width that matches the roofing pitch interval, the ridge side engaging part can be engaged with the ridge side engaging part on one side edge, and the eave side engaging part can be engaged with the other side edge, respectively. and are respectively supported through the left and right face plate receiving portions of each of the rafter members, and the end faces of the central face plate portions are abutted against each other at the upper part of the groove, as appropriate.

The present invention is characterized in that it includes a horizontally ruled roof plate member that is fastened and locked on the rafter member.

[For production]

That is, in this invention, on each purlin material,
Individual rafter members are arranged at predetermined pitch intervals,
In this state, first, pass the left and right face plate receiving portions on the lower tier side so as to straddle the longitudinal centers of each rafter member, and first support the horizontally ruled roof plate member on the lower tier side, and then adjust the ridge side engagement portion as appropriate. At the same time as locking on the rafter member, the edge drooping portions at the end faces of the central face plate in the longitudinal and lateral direction are butted against each other at the upper part of the groove of the rafter member and similarly locked, and then the lower ridge side By engaging the eave-side engaging portion of the upper horizontally ruled roof board member with the engaging portion and repeating this process, the horizontally ruled roof structure can be roofed as desired. It is,
In the roofed state, the center plate part of the horizontally ruled roof plate member is
Since it is supported by the left and right side plate receiving sections of the rafter members and reinforced and supported from the back side, it is possible to eliminate bending due to external pressure and prevent rainwater from entering from the butt part of the horizontally ruled roof plate members. The water flows down the grooves of the rafter members and is drained.

〔Example〕

Hereinafter, one embodiment of the unit type horizontal roof structure according to the present invention will be described in detail with reference to FIGS. 1 to 9.

Figures 1 and 2 are a vertical side view and a cross-sectional front view showing the general configuration of a unit type horizontal roof structure to which this embodiment is applied, and Figure 3 is a configuration of the same unit type horizontal roof structure as above. 4 and 5 are a perspective view and an overall conceptual diagram showing the rafter members that are taken out, and FIG. 6 (a > (b) (c) (d) is
FIG. 7 is a sectional view showing other specific examples of the bent edge portion, FIG. 7 is a partial perspective view showing separate rafter members, and FIG. FIGS. 9(a) to 9(d) are plan explanatory views showing the aspect of the invention, and FIGS. 9(a) to 9(d) are partial cross-sectional views showing the respective attachment states of the rafter members to the purlin material in the same unit type horizontal roof structure.

That is, in these configurations of FIGS. 1 to 5,
In the unit type horizontal roof structure according to this embodiment, each component is formed into a predetermined shape by press forming or roll forming a metal steel plate, forming using a combination of these, or appropriately press forming after extrusion forming. , ie.

Parallel to the ridge direction of the roof frame that makes up the roof structure surface.

In other words, on each purlin material (A) arranged in parallel to the lateral direction to give a predetermined roof slope, the thickness is fixed perpendicular to the ridge direction, that is, fixedly arranged in parallel at a predetermined pitch interval in the longitudinal direction. A rafter member (11) made of a metal steel plate with a diameter of 100 mm, and a rafter member (II) that is directly supported on each of these rafter members (II) and is roofed from the lower eave side to the upper eave side at a predetermined pitch interval. ＼ Horizontal ruled roof board member (31) made of thin metal steel plate and each of these horizontal ruled roof board members (
31) and a hanger member (51) similarly made of a thick metal steel plate, which is individually held and locked on each rafter member (11) at each roofing position.

As shown in FIG. 3, the rafter member (11) has a bottom wall (12) and left and right side walls (+3) and (14) raised on both sides. The cross section is shaped like an upwardly U-shaped groove, and is located at the upper part of each of these side walls (13) and (14), and is arranged at the roofing pitch interval of each of the horizontally ruled roof board members (31). At each corresponding part of the corresponding eaves side, install the left and right step surfaces (15
), (16) are left in a stepped or sawtooth shape, respectively, and the left and right face plate support portions (+7) are left in place.

(+8) are formed by bending them inward to face each other, and inside the groove, a gutter space (19) is formed to allow rainwater and the like to flow down.

Further, as shown in FIG. 4, the horizontally ruled roof board member (31) is located in the longitudinal and lateral direction parallel to the ridge direction in the roofed state, ) is the same as or an integral multiple of the arrangement pitch interval p of the effective length I1. (p
), and similarly leave a central face plate part (32) of the stomach with an effective width corresponding to the roofing pitch interval in the short longitudinal direction corresponding to orthogonal to the ridge direction in the roofing state, A ridge-side engaging part (33) is formed on one side edge, and an eave-side engaging part (34) is formed on the other side edge. The ridge side engaging part (
In order not to interfere with the work for engaging the eave side engaging part (34) with The grooves are formed in such a manner that rainwater or the like can be prevented from entering the inside of each of the ridge-side engaging portion (33) and the eave-side engaging portion (34) from the abutted end faces as much as possible. It should be noted that various shapes of the bent edge portions (39) and (40) can be considered, as shown in Fig. 6(a), (b), (c), and (d) in addition to Fig. 4. , also, the edge bent portion (39), (4
An elastic material such as rubber or resin may be placed on the abutting end surfaces of 0) for waterproofing and expansion/contraction.

), the ridge side engaging portions (33) and the eave side engaging portions (34) on both sides in the transverse longitudinal direction of the horizontally ruled roof board member (31)
), each horizontally ruled roof board member (3
1) may be configured so that when they are placed adjacent to each other, they can be engaged with each other by a predetermined engagement step. In this case, in particular,
Although the engagement configuration is not limited, as an example of a specific engagement configuration, the former ridge-side engagement portion (33) has an end folded back upwardly and inwardly for engagement. A retaining part (35) and an upper retaining part (36) bulging upwardly and inwardly from the end-folded engaging part (35) are formed, and a part of both ends of the upper retaining part (36) is formed to prevent engagement. There are notches (33a) and (33a) to prevent
Regarding the latter eave-side engaging portion (34), the front edge hanging portion (37) is bent downward so that the upper retaining portion (36) can be enclosed therein, and this front edge Drooping part (3
7) is bent inwardly so that it can be inserted into and engaged with the end folded part (35) and has an upwardly bulging part (38).
a) forming an end engaging edge (38);

Furthermore, as shown in FIG.
5) Place the set screw (11) between the left and right face plate support parts (37) and (38) near the base of (36).
Attachment is performed by engaging and retaining the upper retaining portion (36) of the ridge side engaging portion (33) of the horizontally ruled roof plate member (31) with the base plate portion (52). Department (53)
It consists of

The attachment of each rafter member (II) to each main building material (A) arranged with the predetermined roof slope described above is shown in FIGS. 9(a) to 9(d) as several examples of fixing methods. As shown, the left and right side walls (13) of the rafter member (11)
, (+4), holes (22) and (23) are formed respectively, and the mounting means (in the same figure (
a)) or each side wall part (+3), (1
4) Attach to the bottom of the flange part (24), (25)
There is a means (see figure (b)) for attaching the brackets (72) and (72) to each other by folding them back and fixing them on the main building material (8).
) A protrusion (26) is provided in the center of the bottom wall (12) so as to protrude upward, and installation is done through this protrusion (26) using screws or bold bolts (7:]). means ((C) in the same figure), or a protruding strip (27) whose lower surface is in the shape of an inverted end groove is provided in the center of the bottom wall (12) and protrudes upward. Mounting means using a bold nut (74) with a head of a corresponding shape by utilizing the inside of the inverted dovetail groove-shaped recess of the strip (27) (FIG. 2(d))
According to the means, each of these installations is carried out on rafter members (
11) without obstructing the flow of rainwater flowing down inside the groove,
In addition, it is possible to install it while preventing water leakage to the main building material (A) side.

Therefore, in the structure of each member according to the above embodiment, as shown in FIGS. 1 and 2, each rafter member (11) is located on each purlin member (A).

(11) are respectively arranged and fixed at a predetermined pitch interval p, and in this state, first, each mutually adjacent rafter member CI, and each left and right face plate receiver on the lower side of (11) The horizontal roof board member (31) on the lower level side is supported by passing the branches (17) and (+8) and straddling between the center portions in the longitudinal direction.

In this state, each step surface (35) in each of these mutually adjacent rafter members (11), (It).

(36) The left and right side plate receivers near the base (Yi 7)
.

(18) To mount the hanger member (51) so as to straddle between The ridge side engagement part (33) of the horizontal roof plate member (31)
) is engaged with the upper retaining part (36) by the retaining engaging part (53), and furthermore, for this lower horizontal roofing board member (31), its longitudinal The horizontal roof board members (31) at the same level in the horizontal direction are attached to the center panel part (32).
The respective edge bent portions (39) and (40) at the end portions are connected so as to butt against each other, and are held and locked one after another in exactly the same manner. That is, in this case, the adjacent horizontal roofing board members (31), (31) connected at the same stage are simultaneously held and locked by one hanger member (51). become. Note that, for example, a joiner or a cover may be applied to the butt joint portion in the same stage, if necessary.

Next, the end engaging edge (38) of the eave side engaging portion (34) of the upper horizontal roof board member (31) is connected to each of the mutually adjacent rafter members (+1), (] I) Horizontal roof board members on the lower tier side that are placed on top (3I)
) at the end of the ridge side engaging portion (33) folded back engaging portion (35)
In this case, the horizontal roof board member (31) on the upper tier side is inserted into the left and right side of each mutually adjacent rafter member (11), (It). Pass through each face plate support branch (17) and (18) and extend it between the longitudinal center portions, and support this upper horizontal roof plate member (31), and do the same in the same way. In this case, as shown in FIG. 8, the upper and lower horizontal roofs are plate member (31),
(31) Each edge drooping part (3
9), (40) The abutment surfaces between each other appear in series on the - line in the corresponding rafter members (11).

That is, each of the individual horizontal roof board members (31) is arranged in a rectangular shape (mosaic shape) when viewed from the front side.

In other words, in this way, the desired horizontal roof structure can be raised, and in this roofing state, both the upper and lower horizontal roof plate members (31) have their respective center plate parts. (32) is each rafter member (11), (11
) are supported by the left and right face plate support portions (17) and (18), and are reinforced and supported from the back side, effectively eliminating deflection of the central face plate (32) due to external pressure. At the same time, for each horizontal roofing board member (31), (31) in the same stage that is connected in the longitudinal and lateral direction, each edge fold at the center panel part (32), (32) is Curved section (
39) and (40) are butted against each other at the longitudinal center of the rafter member (11), so rainwater, etc. that infiltrates from the butting surfaces of these respective edge ridges (39) and (40). are the respective edge bent portions (39) and (40).
By lowering the end faces of the ridge-side engaging portion (33) and the eave-side engaging portion (34) that are engaged with each other, both engaging portions (33)
).

(34), and can flow down into the gutter space (19) in the groove of the rafter member (11) and drain through the groove to the outside. In addition, the edge bent portion (39).

(40>) and the front end engaging portion (34), as appropriate.
It is preferable to perform a treatment such as welding or sealing because it can prevent rainwater from entering and can also cope with thermal expansion and contraction of roof panels.

Furthermore, in the embodiment, the horizontal roof plate member (3
In order to retain and lock the ridge side engaging portion (33) in step 1), a separate member, the hanger member (51), is used, but as shown in Fig. 7, the rafter member Each suspender part (20 ), (21) and can be locked using the springback of the rear end locking part (33) of the roof plate member, which further facilitates locking work by fitting or press-fitting, and This is extremely advantageous in that the amount of materials used can be reduced and the manufacturing process can be simplified.

In the above embodiment, both the left and right face plate receiving portions (+7) and (ta) of the rafter member (11) are bent inward, but as shown in FIG. Both of these may be bent outward, and similar actions and effects can be obtained.

What is shown in FIGS. 11 and 12 is a sectional view of a main part of a systemized rafter member according to the present invention fixed to a roof board or the like of another shape. Among these, the one shown in FIG. 11 folds the ridge-side engaging portion (33) of the roof plate member (31) into a predetermined shape and overlaps them, and then connects the end portions to the face plate receiving portions (17), (18). ) with a contact surface (33a) that can be fixed with a fixing device such as a screw (B).

In addition, in the case shown in Fig. 12, the ridge side engaging portion (33) of the roof plate member (31) is folded back into a predetermined shape and overlapped, and the end portion is further extended in a stock pattern and brought into contact. A surface (33a) is formed, and an upright portion (33b) is formed at the tip thereof. Moreover, a hanger (51) corresponding to the curved surface shape of the abutment surface (33a) and the upright portion (33b) is formed, and the face plate is supported by the hanger (51) and fixing devices such as screws (B). (17) , (18) Fix on top. This hanger (
As shown in the figure, the shape of 51) is approximately hat-shaped, and the top part is formed to support the center plate part (32) of the roof plate member (31) from below.

Note that the same reference numerals are given to the same parts as those shown in the embodiment of FIG. 2, and the explanation thereof will be omitted.

(Effects of the Invention) As described in detail above, according to the present invention, the bottom wall portion and each left and right side wall portion are formed into a groove shape, and each eave is formed in a groove shape, and each eaves corresponds to the roofing pitch interval at the top of each side wall portion. In the side corresponding part, there is a rafter member in which the left and right sides of each step are left in a step-like or serrated shape with the eaves side step corresponding to the engagement step, and the left and right side plate receiving parts are bent inward to face each other, and in the longitudinal and lateral direction. A ridge-side engaging portion is provided on one side edge, leaving a central face plate portion that has an effective length that is the same as or an integral multiple of the installation pitch interval and has an effective width that matches the roofing pitch interval in the transverse longitudinal direction. Since the eave side engaging portions are formed on the other side edge so that they can be secured between adjacent parts, and the horizontal roof plate members are appropriately fastened and locked on the rafter members, each On the main building material, the individual rafter members are arranged at a predetermined pitch interval, and in this state, the rafters are passed through the left and right side plate receiving parts on the lower side of each rafter member, and are straddled between the longitudinal center parts. In this state, the horizontal roof board members on the lower tier side are supported and the ridge side engaging parts are appropriately locked on the rafter members, and the @edge hanging parts of the end faces of the central face plate parts in the 5 longitudinal directions are mutually connected. are butted together at the upper part of the groove of the same rafter member and similarly locked, and the eave side engaging part of the horizontal roof board member on the upper stage side is engaged with the ridge side engaging part on the lower stage side, The desired horizontal roof structure can be installed extremely easily and with good workability.

In addition, in this roofing state, the central face plate part of the horizontal roof board member is supported by the left and right face plate receiving branches of the rafter member, and in order to reinforce and support it from the back side, it is necessary to prevent bending due to external pressure. It eliminates the need for back-up boards at all, and rainwater that enters from the butt parts of the roof board members can be drained by flowing down into the grooves of the rafter members.
It has excellent features such as being extremely simple in structure and can be provided easily and inexpensively.

[Brief explanation of the drawing]

1 and 2 are a longitudinal sectional side view and a sectional front view showing the general configuration of a unit type horizontal roof structure to which this embodiment is applied, and FIG.
The figure is a perspective view of the rafter members, horizontal roof plate members, and hanger members, which are the constituent members of the same unit type horizontal roof structure as above. 7 is a partial perspective view showing a separate rafter member, and FIG. 8 is an explanatory plan view showing an aspect of the unit type horizontal roof structure that has been raised up. Figures 9 (a) to d) are partial cross-sectional views showing how the rafter members are attached to the main building in the same unit type horizontal roof structure as above, and Figure 10 is a modified example of the rafter members; FIGS. 11 and 12 are partial vertical cross-sectional views showing roof structures using different roof plate members and the like. +1)...Rafter member, (12)...Bottom wall part, +3), (14)...Right and left side wall parts, 15
), (+6)...each step surface on the left and right, 17),
(18)... Left and right side plate receiving parts, 19)...
- Gutter space, h... Eave side step, p... Arrangement pitch interval, A)... Purlin material, 20, (2])... Hanging section. 31...Horizontal roof board member, 32...Central face plate part, (33)...Ridge side engagement part, 34...Eave side engagement part, 35...Edge (36)...Upper retaining part, (37)...Front edge hanging part, (38)...End engagement edge, (39), (40) )...Edge bend, 2(p)...Effective length, W...Effective width. (51)... Hanging member, (52)... Attaching to the base plate, (53)... Retaining and engaging part, (B)... Set screw.

Claims (3)

[Claims] (1) Groove-shaped with a bottom wall and left and right side walls;
At each eaves side corresponding to the roofing pitch interval at the top of each side wall part, leave each left and right step surface in a step-like or sawtooth shape with the eave side step corresponding to the engagement step, and install the left and right face plate receiving parts. A rafter member is bent inwardly and arranged at a predetermined pitch interval on each purlin member, and the rafter member has an effective length in the longitudinal and lateral direction that is the same as or an integral multiple of the arrangement pitch interval, and is short. Leaving a central face plate part with an effective width that matches the roofing pitch interval in the vertical direction, install a ridge side engaging part on one side edge and an eave side engaging part on the other side edge between each other. They are formed so that they can be engaged with each other, and are respectively supported through the left and right face plate receiving portions of each of the rafter members, and are engaged on the rafter members as appropriate by abutting the end hanging portions of the end faces at the upper part of the groove. 1. A unit type horizontal roof structure characterized by comprising: a horizontal roof plate member that is stopped; (2) A hanger member is attached and fixed to the hanging member spanning between the left and right side plate receiving parts, and this hanger member engages the eave side engaging portion of the horizontal roof board member on the ridge side. The unit type horizontal roof structure according to claim 1, wherein the engaging portion is locked. (3) Ridge side engagement in which the rafter members are integrally formed with hanger parts at the top of each step surface on the left and right, and these hanger parts engage the eave side engagement parts of the horizontal roofing board members. 2. The unit type horizontal roof structure according to claim 1, wherein the parts are locked.