JP2003003615A - Roof-receiving frame in repaired roof of slate roof and frame bracket and method for executing roof-receiving frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the damage or the like of an existing roof by largely reducing overload on a superannuated existing slate roof by a new roof in the case of roof repair. SOLUTION: The new roof 6 composed of a folded plate is roofed on the existing roof 4 consisting of a slate corrugated sheet through a roof support frame 5 and a frame bracket 7. The frame bracket 7 has a horizontal section 11 supporting the roof support frame 5 in an upper section, and is composed of a frame member 9 having a curved section 14 approximating to the wave form of the bottom section 3 of the existing roof 4 at the front end of a down section 12, a clamp member 10 arranged to the crest section 2 of the existing roof 4 for fixing the frame member 9 onto the existing roof 4 and a connecting bolt 8 inserted to the members for connecting both members so as to be able to be vertically moved individually at positions where the frame member 9 and the clamp member 10 are separated by a fixed size.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roof support frame used for a refurbished roof of a slate roof, and a frame support fitting thereof.

[0002]

2. Description of the Related Art As a conventional technique relating to a refurbished roof in which a new roof is roofed via a supporting metal fitting on an existing roof made of a slate corrugated sheet fixed on a roof base material, the following conventional examples are roughly classified, There is.

Conventional example: In the valley of an existing slate roof,
For example, Japanese Patent Application Laid-Open No. 5-230941 and Japanese Patent Application Laid-Open No. 2000-274016 can be used to mount a metal fitting for supporting a new roof. In all of these prior inventions, a support metal fitting that matches the shape of the valley is attached by screwing in the valley of the existing slate roof, and the support metal is used to support a support frame such as a horizontal crosspiece or C-shaped steel. A new roof is attached to the frame either directly or via a tight frame.

In the above-mentioned prior invention, since the method of fixing the support fittings is screwing to the existing purlin, etc., there is a possibility that dust, dust, or slate fragments fall into the interior of the building, which has an adverse effect on the room. large.

Conventional example: On the other hand, as a method for preventing dust from falling inside a building by attaching a support fitting to the hook bolt, there is, for example, Japanese Patent Laid-Open No. 10-2193936. In this prior invention, a clamp metal fitting is attached to a hook bolt that passes through a mountain portion of an existing slate corrugated sheet roof, and a new roof is mounted via the clamp metal fitting.

In the above-mentioned prior invention, the load of the new roof is applied to the mountain portion of the existing slate roof that has deteriorated, and the base material (frame) for supporting is not contained in the mountain portion of the existing slate roof. This may cause damage to the roof.

Conventional example: Further, there are many construction methods in which a base material (roof receiving frame in the present invention) for supporting a new roof is constructed by installing a single material in the lateral direction orthogonal to the water gradient of the roof. Considering the work on the old slate corrugated sheet roof, it is necessary to take measures to prevent falling such as netting, and it is necessary to always pay close attention to the construction.

A method of constructing a base material for supporting a new roof by installing single materials in both vertical and horizontal directions is disclosed in, for example, Japanese Patent Laid-Open Nos. 5-118103 and 5-230941.
However, with these construction methods, the safety is improved compared to the case where the single material is installed in one direction, but the construction process is doubled and the efficiency is poor.

[0009]

As described above, in the conventional slate roof repairing method, there is a risk that dust, dust, or slate debris may fall into the interior of the building during repair work, or slate damage may occur. Also, there was a problem such as poor work efficiency during construction.

It is an object of the present invention to provide a roof receiving frame used for a refurbished roof of a slate roof which solves the above-mentioned problems, and a frame receiving metal fitting and a method for constructing the roof receiving frame.

[0011]

In order to solve the above-mentioned problems, the present invention is constructed as follows.

According to a first aspect of the present invention, a new roof is provided on the existing roof made of a slate corrugated sheet fixed on a roof base material, a roof receiving frame and a frame receiving metal fitting supporting the roof receiving frame. In the repaired roof to be cut, the tip of the falling part of the frame receiving metal fitting is supported by the valley part of the existing roof, and the upper part of the frame receiving metal fitting is
By connecting the compressed load from the new roof to the mountain portion of the existing roof through a connecting means that does not transmit the compressed load to the mountain portion of the existing roof, the compressed load does not go through the mountain portion of the existing roof, Characterized by transmission to the roof base.

A second aspect of the present invention is the frame member according to the first aspect of the present invention, in which the tip of the falling portion is supported by the valley portion of the existing roof and the upper portion supports the new roof.
A connecting means configured to include a clamp member for fixing the frame member to an existing roof, the clamp member being installed in a mountain portion of the existing roof, and not transmitting a compressive load from the upper portion to the mountain portion of the existing roof. Is constituted by a bolt connecting both members so that the frame member and the clamp member can independently move up and down.

A third aspect of the present invention is the frame fitting of the second aspect, wherein the frame member has a horizontal surface in the upper portion,
The tip of the falling part has a substantially gate shape having a curved portion close to the wave shape of the valley of the existing roof, and the lower part of the clamp member is fixed to the mountain portion of the existing roof using the existing hook bolt. , Through the holes formed in the upper part of the frame member and the upper part of the clamp member, through the bolts connecting the two members at a position separated by a predetermined dimension, the upper horizontal surface of the frame member and the upper horizontal surface of the clamp member. It is characterized in that both the members are independently movably coupled in the vertical direction by a bolt head located on the lower surface and a nut washer.

In a fourth invention according to any one of the first to third inventions, the roof receiving frame is made of a material processed into a hat shape or an L shape into a ladder shape having a predetermined width and length. It is characterized in that it is constructed as an assembled roof receiving frame unit, and the new roof base is constructed by fixing the frame unit to the frame receiving metal fitting by a fixing means such as a screw.

In the construction method of the fifth aspect of the invention, the roof receiving frame unit of the fourth aspect of the present invention is installed on the existing roof surface while fixing the frame receiving metal fittings to the existing roof by using the roof receiving frame unit arranged in advance as a work scaffold. It is characterized in that it is sequentially fixed over a predetermined range at intervals in the front, rear, left and right, and then the roof receiving frame unit is spread over the spaces.

[0017]

According to the present invention, when the roof is renovated, the compressive load from the new roof is transmitted to the existing roof base through the valley of the existing roof without passing through the peaks of the existing roof which are weak in strength. By doing so, it is possible to significantly reduce the load on the mountain portion of the existing slate roof that has deteriorated and prevent damage.

Further, the roof receiving frame is constructed as a frame unit in which a material processed into a hat shape or an L shape is assembled into a ladder shape with predetermined width and length dimensions, and is fixed to the frame receiving metal fitting with screws or the like. By constructing a new roof substrate with this construction, it is possible to perform construction with high safety without impairing construction efficiency. Furthermore, by implementing the construction method of the fourth invention, construction efficiency is further improved and repairs are made. Uneven load on the existing slate roof can be eliminated on the way.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a sectional view of a modified roof structure according to the present invention in a direction orthogonal to a water gradient, FIG. 2 is an enlarged sectional view showing a roof receiving frame and a frame receiving metal fitting in FIG. 1, and FIG. 1 is a cross-sectional view in a direction orthogonal to the above, FIG. 4 is a cross-sectional view of a previous step of FIG. 1 in a roof repair process, FIG. 5 is a plan view of the roof receiving frame unitized, and FIGS.
It is an upper perspective view of the process of attaching the roof receiving frame unitized to the existing slate roof.

In FIGS. 1 to 3, an existing roof 4 made of slate corrugated sheet arranged so that peaks 2 and valleys 3 flow along a roof slope is made of channel steel erected between columns. Is supported by a main building material (base material) 1.

According to the present invention, the new roof 6 is stacked on the existing slate roof 4 by using the roof receiving frame 5, and the roof receiving frame 5 and the frame receiving metal fitting 7 for supporting the roof receiving frame 5 are provided. The frame receiving metal fitting 7 is provided inside the frame member 9 and the frame member 9, and the frame member 9 is connected to the existing roof 4 via the connecting bolt 8.
It is composed of a clamp member 10 fixed to.

The frame member 9 will be described below in order.
As shown in FIG. 1 and FIG. 2, each of the horizontal portions 11 has a vertical falling portion 12 at both ends of the horizontal portion 11, and the existing roof 4 is provided at the lower end of the falling portion 12. Has a corrugated curved portion 14 close to the valley portion 3 of the slate corrugated plate, and the central portion of the horizontal portion 11 is larger than the diameter of the connecting bolt 8 described later and smaller than the size of the nut washer 15. The opening 16 is opened. Further, as shown in FIG. 3, the frame member 9 is provided with a length dimension in the water gradient direction which is slightly longer than the interval between the falling portions 12 when viewed from the side, and the overall size and shape of the frame receiving fitting 7 Has the appearance of a component hardware that can be handled with one hand.

The clamp member 10 has a substantially rectangular front shape,
It is arranged inside the frame receiving member 7 with a predetermined interval. An existing hook bolt 20 in which the bottom surface portion 17 of the clamp portion 10 is placed on the mountain portion 2 of the existing roof 4 and the notch 18 provided in the bottom surface portion 17 projects from the mountain portion 2 of the existing roof 4
Insert the washer for the hook bolt 2 from the side.
By pressing the bottom portion 17 with 1, the clamp portion 10
Is fixed to the hook bolt 20.

Further, a bolt insertion hole 23 formed in the upper surface portion 22 of the clamp member 10 and an opening 16 formed in the horizontal portion 11 of the frame member 9 are passed through the connection bolt 8 of a predetermined length from below to horizontally By fastening the nut 24 on the upper side of the portion 11 via the nut washer 15 having a diameter larger than the diameter of the opening 16, the frame member 9 is pressed against the existing roof 4 via the clamp member 10 and the connecting bolt 8. Falling part 1
The curved portion 14 at the lower end of 2 is pressed against the valley portion 3 of the existing roof 4 and is supported by the main building material 1 to which the existing roof 4 is attached, and the compressive load from the upper portion flows to the mountain portion 2 of the existing roof 4. No, Figure 2
It flows to the main material 1 via the valley 3 as shown by the arrow (d).

The roof receiving frame 5 is arranged at a right angle to the water gradient of the existing roof 4. The roof receiving frame 5 may be formed of a hat-shaped or L-shaped shaped steel,
In the illustrated example, it is made of a hat-shaped steel, cut into a predetermined length dimension, and its end is supported by the horizontal portion 11 of the frame receiving metal fitting 7, and penetrates the hat-shaped horizontal bent portion. It is fixed to the horizontal portion 11 by a drill screw 29. Further, as shown in FIG. 2, the end portions of the adjacent roof receiving frames 5 of a predetermined length are provided apart from each other, avoiding the connecting bolt 8 located in the central portion of the upper surface of the horizontal portion 11. There is.

Then, by supporting the valley portion 25 of the new roof 6 on the top surface of the roof receiving frame 5 and penetrating the mountain portion 26, a drill screw 27 is driven on the top surface of the roof receiving frame 5. The new roof 6 is fixed to the roof receiving frame 5.

In this embodiment, as shown in FIG. 5, the roof receiving frame unit 5 is formed by connecting a plurality of roof receiving frames 5 with a connecting frame 28.
It is configured as a. That is, as shown in the drawing, a plurality of roof receiving frames 5 are arranged in parallel at a predetermined interval, and both ends of the roof receiving frame 5 are welded or bolted to each other by a connecting frame 28 of a predetermined length made of L-shaped steel. A ladder-shaped roof receiving frame unit 5a. The roof receiving frame 5 may be used as a single material.

A construction process in the embodiment of the present invention will be described.

First, as shown in FIG. 6 (and FIG. 4), the frame receiving member 7 is fixed to the existing roof 4, and the clamp member 10 is fixed to the existing roof 4 by the hook bolts 20. The curved portion 14 of the member 9 is applied to the valley portion 3 of the existing roof 4. Next, the nut 24 is fastened to the connecting bolt 8 that connects the clamp member 10 and the frame member 9, thereby fixing the frame member 9 to the existing roof 4 by using the valley portion 3 of the existing roof 4 as a support portion.

Before installing the roof receiving frame unit 5a on the existing roof 4, the worker installs the frame receiving metal fitting 7 on the existing roof 4 while the worker walks on the existing roof 4 without scaffolding. However, since the existing roof 4 is often deteriorated and its strength is lowered, it is desirable that the scaffold should originally have a scaffold in order to safely perform the mounting work of the metal fittings and the like.

In the present invention, even without the above-mentioned scaffold, FIG.
In order to safely and efficiently install the frame receiving metal fitting 7 from one roof side of the roof, the frame receiving metal fitting 7 and the roof receiving frame unit 5a are attached in the next step.

First of all, the one side of the building (the c side in FIG. 6).
A scaffold (called an external scaffold, but not shown),
Starting from this point, work is performed sequentially from one end face to the other end face. First, in the step before the worker climbs up to the roof, the worker (not shown) riding on the outer scaffold from one gable face side (C side in Fig. 6) shown in Fig. 6 extends his body on the roof. The clamp member 10 and the frame member 9 (that is, the frame receiving member 7) are fixed to the existing roof 4 at the positions of the four corners of the rectangle within the reach of both arms. Next, an operator who rides on an external scaffold pulls up the roof receiving frame unit 5a onto the roof, and the four corners of the roof receiving frame unit 5a are supported by the horizontal portions 11 of the frame member 9 arranged at the four corners of the rectangle. Drill screw 27
Then, the roof receiving frame unit 5a is fixed to the frame member 9 (this becomes the first scaffold (a)).

Using the roof receiving frame unit 5a as the first scaffold (a), the worker can use the first scaffold (a).
Then, in order to form the second scaffold (b), the clamp member 10 and the frame member 9 are fixed to the existing roof 4 at the positions of the four corners of the diagonally upper rectangle, and the first scaffold ( An operator riding on (a) pulls up the next roof receiving frame unit 5a to the roof, and supports its four corners by the horizontal portions 11 of the clamp members 10 arranged at the four corners of the rectangle.
Roof support frame unit 5a by drill screw 27
Are fixed to the frame member 9.

In this embodiment, when the installation work of the roof receiving frame unit 5a is viewed on the entire roof surface, it is divided into the first half and the latter half. In the first half of the work, as shown in FIG. 5a are installed in the front and rear, and left and right every other space, and are installed as if they were in a checkered pattern, and the roof receiving frame unit 5a is installed so as to fill the space in the latter half work (shown in FIG. 7). .

Thus, the roof receiving frame unit 5a
When the work is divided into the first half and the second half, the load of the roof receiving frame unit 5a is less likely to be biased on the roof surface compared to the case where the roof receiving frame unit 5a is laid from one end surface without a gap, and the roof is less likely to be biased. The roof receiving frame unit 5a can be spread over the entire surface in a well-balanced manner, and in addition, in the latter half of the work, the scaffolding is more stable, and work efficiency is further improved.

After the roof receiving frame unit 5a is spread over the entire roof surface as described above, the valley portion 25 of the new roof 6 is formed on the top surface of the roof receiving frame 5 made of hat-shaped steel as shown in FIG. The new roof 6 can be fixed to the roof receiving frame 5 by supporting the above, and driving the drill screw 27 on the top surface of the roof receiving frame 5 through the mountain portion 26.

In the present invention, the transmission path of the compressive load from the new roof 6 will be described with reference to FIG.

In the connection structure of the frame member 9 and the clamp member 10 by the connecting bolt 8, the nut washer 15 having a diameter larger than the diameter of the opening 16 is provided on the upper surface of the opening 16 formed in the horizontal portion 11 of the frame member 9. Arranged and clamp member 1
Since the head portion of the connecting bolt 8 is arranged on the lower surface of the bolt insertion hole 23 formed on the upper surface portion 22 of 0, the new roof 6
Also, the compressive load from the roof receiving frame 5 flows in the path indicated by the arrow (d), is not transmitted to the clamp member 10, and is therefore transmitted to the mountain portion 2 of the existing roof 4 which is weak in strength via the clamp member 10. Instead, it is transmitted from the curved portion 14 at the lower end of the falling portion 12 of the frame member 9 to the valley portion 3 of the existing roof 4, and further flows to the existing main building material 1.

The present invention is not limited to the illustrated structure,
If the configuration is such that the transmission path of the compressive load from the new roof 6 is directly transmitted from the valley portion 3 of the existing roof 4 to the existing main building material 1,
The partial modification of the frame receiving member 7 belongs to the design matter of the present invention.

[0041]

According to the present invention, in a refurbished roof in which a new roof is roofed on an existing slate roof through the roof receiving frame and the frame receiving metal fitting, the compressive load from the new roof is
By transmitting to the existing roof base through the valley instead of through the mountain of the existing roof, it is possible to significantly reduce the overload on the aged existing slate roof and prevent damage. it can.

Further, by constructing the roof receiving frame as a frame unit assembled in the shape of a ladder and fixing it to the frame receiving metal fittings to construct a new roof base, it is possible to perform a highly safe construction without impairing the construction efficiency. It will be possible. Furthermore, by implementing the construction method of the present invention, construction efficiency can be further improved, and a biased excessive load on the existing slate roof can be eliminated during the repair.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a modified roof structure according to the present invention in a direction orthogonal to a water gradient.

FIG. 2 is an enlarged sectional view showing a roof receiving frame and a frame receiving metal fitting in FIG.

FIG. 3 is a cross-sectional view in a direction orthogonal to FIG.

FIG. 4 is a cross-sectional view of the pre-process of the roof repair shown in FIG.

FIG. 5 is a plan view of the roof receiving frame unitized.

FIG. 6 is a top perspective view of step 1 in which the unitized roof support frame is attached to an existing slate roof.

FIG. 7 is an upper perspective view of step 2 in which the unitized roof receiving frame is attached to an existing slate roof.

[Explanation of symbols]

1 main building materials 2 Yamabe 3 Tanibe 4 Existing roof 5 roof support frame 6 new roof 7 Frame receiving bracket 8 connecting bolts 9 frame members 10 Clamp member 11 Horizontal part 12 Falling part 13 nuts 14 Curved part 15 Washer for nut 16 holes 17 Bottom part 18 notches 19 Hook part 20 hook bolt 21 Washer for hook bolt 22 Upper surface 23 Bolt insertion hole 24 nuts 25 Valley of new roof 26 Mountains of new roof 27 drill screw 28 connecting frame 29 drill screw

Claims (5)

[Claims] 1. A refurbished roof in which a new roof is roofed through a roof receiving frame and a frame receiving metal fitting supporting the roof receiving frame, on an existing roof made of a slate corrugated sheet fixed on a roof base material. , A connecting means for supporting the tip of the falling part of the frame receiving metal fitting in the valley part of the existing roof and for not transmitting the upper part of the frame receiving metal fitting from the new roof to the mountain portion of the existing roof. A frame receiving metal fitting for a slate roof, characterized in that the compression load is transmitted to the existing roof substrate without passing through the mountain portion of the existing roof by connecting to the mountain portion of the existing roof via the mountain portion of the existing roof. 2. A frame member for supporting a new roof at an upper portion of the frame receiving member, the tip of a falling portion being supported by a valley portion of the existing roof, and a clamp member for fixing the frame member to the existing roof. The clamp member is installed on the mountain portion of the existing roof, and the frame member and the clamp member independently move up and down the connecting means for not transmitting the compressive load from the upper portion to the mountain portion of the existing roof. The frame receiving metal fitting according to claim 1, which is used for repairing a slate roof, characterized in that it is constituted by a bolt connecting both members so as to be capable. 3. The frame member has a substantially horizontal shape at an upper portion thereof, and has a substantially gate shape having a curved portion close to a wave shape of a valley portion of an existing roof at a tip end of a falling portion, and a lower portion of the clamp member is It is fixed to the mountain part of the existing roof using the existing hook bolts, and the bolts that connect the two members at a specified distance apart are inserted into the openings formed in the upper part of the frame member and the upper part of the clamp member. However, the two members are independently movably coupled in the vertical direction by a bolt head and a nut washer located on the upper surface of the upper horizontal surface of the frame member and the lower surface of the upper horizontal surface of the clamp member. A frame bracket used for repairing the slate roof according to Item 2. 4. The roof receiving frame is constructed as a roof receiving frame unit in which a material processed into a hat shape or an L shape is assembled in a ladder shape to have predetermined width and length dimensions, and the unit is the frame. The roof support frame used for the refurbishment of the slate roof according to any one of claims 1 to 3, wherein the new roof base is constructed by fixing it to the receiving fitting with a fixing means such as a screw. 5. The roof receiving frame unit according to claim 4, wherein the roof receiving frame unit arranged in advance is used as a work scaffold while fixing the frame receiving metal member to the existing roof, and the roof receiving frame unit according to claim 4 is provided in front, back, left and right of the existing roof surface. A method for constructing a roof receiving frame unit, characterized in that the roof receiving frame unit is spread over a predetermined range and sequentially fixed, and then the roof receiving frame unit is spread over the spaces.