JP2004300668A - Roof renovation structure - Google Patents

Abstract

[PROBLEMS] A solid connection / fixing relationship between a fixing device and an existing roof is maintained while using a fixing device that is a piece member having a single shape, and the connection / fixing relationship is not lost even when a load is applied by a new roof. Provided is a renovated structure with a robust structural strength that is securely laid on the existing roof so that the new roof does not move in the flow direction.
A lower mounting portion (8) is interposed between an existing roof (2) and a washer (5), and at least one of a plurality of fixtures (7) on the existing roof (2) on which bolts (3) are inserted and inserted into insertion grooves (11). One fixture 7 is attached to the other fixtures 7 in a state where the groove entrances 11a of the insertion grooves 11 are opposite to each other in the flow direction, and a new roof 13 is constructed over each of the upper attachment portions 9 to be newly installed. By integrating each fixture 7 including at least one fixture 7 having at least one opposite direction in the flow direction using the roof 13 as a connection medium, the movement of the new roof 13 in the flow direction on the existing roof 2 is regulated. It is laid in the laid state.
[Selection diagram] Fig. 4

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a roof renovation structure that is useful for stacking a new roof on an existing roof.
[0002]
[Prior art]
Prior art document 1 describes a roof repair method of repairing a new roof by overlaying it on an existing roof, and as a clamp fitting used in the method, penetrates the bottom of a mountain-shaped cross section, passing through the top. A notch consisting of a hole to be fitted around a shaft portion directly below the nut of the hook bolt and the above-mentioned edge of the bottom portion is formed by a guide groove for fitting the shaft portion of the hook bolt into the hole. The guide groove is described and illustrated in a tapered shape in which a groove width of a connecting portion with the hole is smaller than a diameter of the hole, and the groove width is increased toward an opening at a bottom edge. ing.
By the way, in such a clamp, the fitting relationship between the shaft portion of the bolt and the hole is secured by expanding the hole and the guide groove following the hole. There is a possibility that the position regulation may be lost, and there is a structural defect that the bolt may come off from the hole. The point is that the bottom and the cross section are mountain-shaped and the shape is along the peak of the existing corrugated slate, and the weight of the newly installed metal sheet roof material is synergistically combined. It can be said that the expanding operation is easy.
Further, the contact frictional resistance obtained by the packing material under the washer may be impaired by deterioration of the packing material or vibration, and the degree of contribution to the connection with the existing roof is low.
In such an expanded state, the connection and fixing relationship of the fixing device to the existing roof material is lost, so the new roof material becomes free with the fixing device and moves in the flow direction seriously. The structure may still be an unsolved problem as a roof repair method, which could lead to problems.
[0003]
[Prior literature 1]
Patent 2907422
[0004]
[Problems to be solved by the invention]
The problem to be solved is that, first, while using a fixing member which is a piece member of a single shape, a strong connection and fixing relationship between the fixing member and the existing roof, that is, the purlin side, is maintained, The renovation structure has a robust structural strength that ensures that the connection / fixing relationship is not lost even when the load is applied by the new roof, and that the new roof is securely laid on the existing roof so that it does not move in the flow direction. Secondly, it is another object of the present invention to provide a refurbished structure that can be laid in a more robust connection / fixing relationship by forcibly restricting the connection / fixing relationship.
[0005]
[Means for Solving the Problems]
In order to achieve the first object, the present invention relates to a roof renovation structure in which a new roof is overlaid on a current roof through a plurality of flow direction or girder direction fixing devices, wherein the fixing device includes an existing roof. It has a lower mounting part mounted on the roof, and an upper mounting part for mounting a new roof, and the lower mounting part is screwed into a screw portion of a bolt protruding above the existing roof to fix the existing roof to the purlin. A guide hole having a diameter larger than the diameter of the nut and the washer fixed to the material, and an insertion groove slightly larger than the diameter of the screw portion of the bolt are formed so as to communicate with the guide hole. The lower mounting portion is interposed between the mounting member and the washer, and at least one of the plurality of fixing devices on the existing roof, in which the screw portion of the bolt is inserted into the insertion groove and mounted, is attached to another fixing device. , The groove entrance of the insertion groove is Constructing a new roof over the upper mounting portion of each fixture including the fixture opposite to the flow direction, and using the new roof as a connection medium in at least one reverse direction in the flow direction. By integrating the fixing tools including the fixing tool described above, the new roof is laid on the existing roof in a laid state in which the displacement in the flow direction is restricted.
According to the present invention, in order to achieve the second object, the fixing device includes a restricting portion that functions to prevent rotation around the axis of the bolt and prevent the bolt from coming off. I do.
[0006]
The new roof in the present invention is not limited to the new roof material, but also includes rafters, floor boards, and the like. The existing roof is a large wave slate or the like, and includes all other known existing roof materials.
The connection / fixing part of the new roof to the fixture on the existing roof may be a mountain or a valley of the new roof, or it may be a side edge of the adjacent new roof material that overlaps the top and bottom of the new roof material. Connection may also be used.
The fixture is a piece material, and the material is a hard material such as a metal or a resin, and may be formed from a plurality of members. The form of the fixing tool includes all of the lower mounting portion that is mounted on the existing roof and the upper mounting portion that mounts the new roof having a vertical positional relationship. And the like. It is desirable that the lower mounting portion is formed in a shape along the existing roof. Further, the upper mounting portion for mounting the new roof may be a mode in which an exterior material such as a roof material is directly mounted, a support member such as a rafter, or a holding member (extension member or the like) of an exterior material, a heat insulating material. It may be of a mode in which it is attached with an interposition or the like. The upper mounting portion may have a shape following the shape of the exterior material when the exterior material is directly attached, or may be formed substantially horizontal when the upper and lower surfaces are interposed by horizontal rafters or the like. Similarly, the lower mounting portion mounted on the existing roof may be configured to be directly mounted on the roof upper surface, or may be configured to be mounted via another member.
[0007]
The guide hole may be any of a round hole, a square hole, a semicircle, and other similar shapes. The insertion groove may be a groove of, for example, a substantially U shape into which a bolt can be inserted, and the groove entrance is desirably a tapered shape that spreads toward the guide hole side.
The restricting portion may be a restricting portion that is a side edge portion that can abut or abut on an outer surface portion of the protruding ridge portion in the lower mounting portion formed in a convex curve along the protruding ridge portion of the existing roof made of large wave slate. Alternatively, a side edge portion that can abut or abut on the inner surface of the ridge portion in the horizontally formed upper mounting portion along the ridge portion of the new roof made of folded plates may be used as the restriction portion. Further, the restricting portion may be a claw-shaped or saw-tooth-shaped or knurled-shaped engaging portion that protrudes downward from a part of the lower mounting portion and can mesh with the existing roof, or may be a part of the upper mounting portion. It may be a claw-shaped, saw-tooth-shaped or knurl-shaped meshing portion that projects upward and can mesh with the new roof. The restricting portion may be of any type as long as it prevents rotation of the fixing device about the axis of the bolt and prevents the bolt from being inserted into the insertion groove.
[0008]
The fixing tool may be a plurality of fixing tools arranged in the flow direction of the existing roof, or a plurality of fixing tools arranged in the girder direction of the existing roof. Then, when mounting each fixture on the existing roof and attaching it, at least one fixture is arranged in a reverse state in which the groove entrance of the insertion groove is opposite to the flow direction with respect to the other fixtures. Will be placed on the existing roof, and each lower mounting part will be slid in the opposite direction along the flow direction so that the bolts are inserted from the guide holes into the insertion grooves, and By being pushed between the lower surface of the washer or the lower surface of the elastic material, it is mounted on the existing roof. Each of the fixtures including at least one or more fixtures in the opposite direction is integrated with the new roof as a connection medium, so that the bolt insertion / connection relationship in each of the insertion grooves is maintained and the existing roof is connected to the existing roof. The new roof will be laid in a laying state in which the displacement in the flow direction is restricted.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
1 to 5 show one embodiment of a roof repair structure according to the present invention. A purlin 1 has an existing roof 2 made of large wave slate laid on the purlin 1. A nut 4 screwed into a screw portion 3a of a hook bolt 3 protruding above the ridge 2a of the material 2 is fixed with a washer 5 and an elastic material 6 such as a packing interposed therebetween. Fixing tools 7 are respectively attached to the protruding ridges 2a at the positions of the screw portions 3a of the existing roofing material 2 which project upward, and the new roofing material 13 is overlaid with the fixing tools 7 adjacent in the flow direction. I have.
[0010]
The fixing member 7 is a piece material having a substantially U-shaped cross section. The lower mounting portion 8 has a cross-sectionally convex shape along the upper surface of the ridge portion 2a of the existing roof material 2 and a horizontal upper shape having a shape along the lower surface of the new roof material 13. The mounting part 9 is provided in a vertically opposed manner. A guide hole 10 and an insertion groove 11 are opened in the lower mounting portion 8 along the longitudinal direction of the plate surface so as to communicate with each other. The guide hole 10 is provided with a hook bolt 3 projecting above the existing roofing material 2. The nut 4 and the washer 5 screwed to the screw portion 3a are formed in a round hole shape larger in diameter than the diameter of the elastic member 6, and the insertion groove 11 is slightly larger than the diameter of the screw portion 3a of the hook bolt 3. Further, the nut 4, the washer 5, and the elastic member 6 are formed in a substantially U-shape smaller in diameter than the diameter of the elastic member 6. The groove entrance 11a of the insertion groove 11 is formed in a round shape or a tapered shape so that the hook bolt 3 can easily enter from the guide hole 10 side. The lower mounting portion 8 has left and right side edges along the longitudinal direction formed as regulating portions 12. The restricting portion 12 does not prevent the sliding operation of the lower mounting portion 8 along the ridge portion 2a, that is, the insertion of the hook bolt 3 into the insertion groove 11, while the rotation / reverse sliding operation of the lower mounting portion 8, that is, the fixing tool. The stopper 7 is formed so as to be able to prevent the movement of the hook bolt 3 from coming out of the insertion groove 11 by rotating the hook bolt 3 around the axis of the hook bolt 3 by 180 degrees by contact of the restricting portion 12 with the side surface of the protrusion 2a. I have. The restricting portion 12 can prevent the hook bolt 3 from being removed from the insertion groove 11 by preventing the lower mounting portion 8 from rotating.
[0011]
Each of the fixtures 7 adjacent in the flow direction is placed on the ridge 2a with the lower mounting portion 8 placed over the guide hole 10 so that the nut 4, the washer 5, and the elastic material 6 pass therethrough. The one or more fixtures 7 are arranged with respect to the other fixtures 7 so that the groove inlets 11a of the respective insertion grooves 11 are opposite to each other in the flow direction, and thereafter, each fixture 7 is attached to the ridge 2a. The hook bolt 3 is inserted into the insertion groove 11 from the guide hole 10 side by pushing the lower mounting portion 8 between the upper surface of the ridge portion 2a and the lower surface of the elastic material 6 by sliding in the opposite directions along the It is attached on the material 2.
[0012]
Then, a new roof material 13 made of folded plate is laid on the existing roof material 2, and on the upper surface of the upper mounting portion 9 of each fixture 7 in the flow direction mounted on the ridge 2 a of the existing roof material 2. The right and left side edges 13a of the adjacent left and right new roofing materials 13 are placed in a vertically overlapping state, and the left and right side edges 13a are connected and fixed to the upper mounting portion 9 with fasteners 14 such as tapping screws. By integrating the fixtures 7 in the flow direction using the new roofing material 13 as a connection medium, the insertion and connection relationship of the bolts 3 in the respective insertion grooves 11 is secured, and the purlin 1, that is, the existing roofing material 2 is Thus, a connection / fixed state in which the new roofing material 13 cannot move in the flow direction is formed by each fixture 7. In addition, the restricting portion 12 is in contact with the side surface of the ridge portion 2 a, and prevents the lower mounting portion 8 from rotating, thereby restricting the hook bolt 3 from being removed in the insertion groove 11.
[0013]
An elastic member 16 such as a washer 15 and a packing is interposed between the enlarged head portion 14a of the fastener 14 and the side edge portion 13a to perform a rain. The fixing relationship between each fixture 7 and the existing roofing material 2, that is, the main house side is maintained firmly by the deterioration or vibration of the elastic member 16, and the new roofing material 13 is placed on the existing roofing material 2 via each fixing tool 7. It is layered surely.
[0014]
FIGS. 6 to 10 illustrate another embodiment of the modified structure of the present invention. Since the structure is basically the same as that of the embodiment of FIG. The description will be omitted using the reference numerals, and different configurations will be described.
Fixing members 7 are respectively attached to the protruding ridge portions 2a at the positions of the screw portions 3a protruding upward in the existing roofing material 2, and the new roofing material 13 is overlapped with the roofing materials 13 via the fixing members 7 adjacent in the girder direction. is there.
[0015]
Each of the fixtures 7 adjacent to each other in the girder direction is placed with the lower mounting portion 8 placed on the ridge 2a so that the nut 4, the washer 5, and the elastic material 6 pass through the guide hole 10 thereof. At least one or more fixtures 7 are arranged with respect to the other fixtures 7 so that the groove entrances 11a of the respective insertion grooves 11 are in opposite directions opposite to the flow direction. The hook bolt 3 is inserted into the insertion groove 11 from the guide hole 10 side by pushing the lower mounting portion 8 between the upper surface of the ridge portion 2a and the lower surface of the elastic material 6 by sliding the hook bolt 3 in the opposite direction along It is mounted on the roofing material 2.
[0016]
Then, a new roofing material 13 made of folded plate is laid on the existing roofing material 2, and on the upper surface of the upper mounting portion 9 of each fixture 7 in the girder direction attached on the ridge 2 a of the existing roofing material 2. Are placed on the left and right side edge portions 13a of the adjacent left and right new roofing materials 13 in a vertically overlapping manner, and on the upper surface of the upper mounting portion 9 of the other fixture 7, a mountain portion 13b of the same new roofing material 13 is provided. And the left and right side edges 13a and the ridges 13b are connected and fixed to the respective upper mounting portions 9 with fasteners 14 such as tapping screws. 7, the insertion / connection relationship of the bolts 3 in the respective insertion grooves 11 is secured, and the connection / fixation of the new roofing material 13 to the main roofing material 1, ie, the existing roofing material 2 is impossible to move in the flow direction. The state is formed by each fixture 7. In addition, the restricting portion 12 is in contact with the side surface of the ridge portion 2 a, and prevents the lower mounting portion 8 from rotating, thereby restricting the hook bolt 3 from being removed in the insertion groove 11.
[0017]
FIG. 11 exemplifies another embodiment of the fixing device in the modified structure of the present invention, and the configuration is basically the same as that of the embodiment of FIG. 5 described above. The reference numerals are applied mutatis mutandis, and different configurations will be described.
In the fixture 7 of (a), the upper mounting portion 9 is formed in a mouth shape in cross section, and is vertically opposed to the lower mounting portion 8. In the fixture 7 of (b), the upper mounting portion 9 is formed in a side face U shape so as to be vertically opposed to the lower mounting portion 8. In the fixture 7 of (c), the upper mounting part 9 is formed in a side crank shape and is vertically symmetrical with the lower mounting part 8. In the fixture 7 of (d) and (e), the lower mounting part 8 and the upper mounting part 9 are formed vertically symmetrically, and the guide hole 10 is formed in a semicircular shape. .
[0018]
【The invention's effect】
A. According to claim 1, while using the fixing member which is a piece member having a single shape, a strong connection and fixing relationship between the fixing member and the existing roof, that is, the purlin side is maintained, and the load by the new roof is also maintained. The connection / fixing relationship is not lost, and the new roof is securely overlaid on the existing roof so that it does not move in the flow direction.
Therefore, it is useful for laying a new roof on an existing roof, and is also useful for constructing a double-roofed roof having upper and lower layers in which a heat insulating material or a heat insulating space layer is formed therebetween.
B. According to the second aspect of the present invention, there is provided a refurbished structure in which a more rigid connection / fixing relationship is forcibly restricted, so that a more robust connection / fixing relationship can be laid and constructed.
[Brief description of the drawings]
FIG. 1 is a plan view illustrating one embodiment of a modified structure of the present invention.
FIG. 2 is a partially enlarged longitudinal sectional view of (2)-(2) of FIG.
FIG. 3 is a partially enlarged longitudinal sectional view of (3)-(3) in FIG. 1;
FIG. 4 is a plan view partially cut away.
5 (a) is a plan view showing the fixing device with a part cut away, FIG. 5 (b) is a perspective view, and FIG. 5 (c) is a front view.
FIG. 6 is a plan view illustrating another embodiment of the modified structure of the present invention.
FIG. 7 is a plan view partially cut away.
FIG. 8 is an enlarged vertical sectional front view.
FIG. 9 is a partially enlarged longitudinal sectional view of (9)-(9) in FIG. 7;
FIG. 10 is a partially enlarged longitudinal sectional view of (10)-(10) in FIG. 7;
11A to 11D are perspective views illustrating other forms of the fixture, respectively, and FIG. 11E is a plan view of the fixture of FIG.
[Explanation of symbols]
1 Purlin material 2 Existing roof material (existing roof)
2a ridge 3 hook bolt (bolt)
3a Screw part 4 Nut 5, 15 Washer 6, 16 Elastic material 7 Fixture 8 Lower mounting part 9 Upper mounting part 10 Guide hole 11 Insertion groove 11a Groove entrance 12 Restriction part 13 New roof material (new roof)
13a Side edge 13b Mountain 14 Fastener 14a Enlarged head

Claims (2)

In the renovation structure of a roof in which a new roof is overlaid on the existing roof via a plurality of fixtures in the flow direction or the girder direction,
The fixing device includes a lower mounting portion that is mounted on an existing roof, and an upper mounting portion that mounts a new roof. The lower mounting portion is screwed to a screw portion of a bolt protruding above the existing roof. And a guide hole having a diameter larger than the diameter of the nut and the washer that fixes the existing roof to the purlin, and an insertion groove that is communicated with the guide hole and is slightly larger than the diameter of the screw portion of the bolt. It has
A lower mounting portion is interposed between the existing roof and the washer, and at least one of the plurality of fixing devices on the existing roof, in which the screw portion of the bolt is inserted and inserted into the insertion groove, is used as another fixing device. On the other hand, a new roof is built over the upper mounting part of each fixture including the fixture with the opposite direction to the flow direction, and the groove entrance of the insertion groove is opposite to the flow direction. By integrating each fixture including at least one fixture in the flow direction with the roof as a connection medium, the new roof is laid on the existing roof in a laid state in which the displacement in the flow direction is restricted. A roof renovation structure characterized by the following. The roof renovation structure according to claim 1, wherein the fixing device includes a restricting portion that functions to prevent rotation around the axis of the bolt and prevent the bolt from coming off.

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