JP2007211441A - Waterproof sheet roof structure and roof panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a waterproof sheet roof structure in which the pullout resistance of a screw with respect to a roof substrate is strengthened, and the rotational loosening of the same is eliminated, and to provide a roof panel having the roof structure. <P>SOLUTION: The waterproof sheet roof structure is composed of: the roof substrate 1 formed of a metallic plate; a heat insulation material 2 laid on the roof substrate 1; a waterproof sheet 6 covering the heat insulation material 2; and the screw 3 of a tapping screw type, which penetrates the heat insulation material 2 and the roof substrate 1 to be screwed into a hole 1a formed in the roof substrate 1, and functions to fix the heat insulation material 2 to the roof substrate 1. The roof structure is provided with a screw cramping clip 7 being in mesh with the screw 3 and engaging with a rear surface of the roof substrate 1. The roof panel is set up by arranging the roof substrate 1 in a panel frame, and has the waterproof sheet roof structure. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a waterproof sheet roof structure and a roof panel provided with the waterproof sheet roof structure.

Conventionally, as a roof of a building or the like, as shown in FIG. 11, a heat insulating material 102 is laid on a deck plate 101 as a roof base, and the disk 104 having a welding resin coating 105 is used as the heat insulating material 102. A roof structure 100 is known that is fixed by a mounted screw 103 and covered with a waterproof sheet 106, and then the disk 104 is fused and fixed to the waterproof sheet 106 by high-frequency heating or the like (Patent Document 1). ).
JP-A-4-254649

In the roof structure as described above, when the tightening by the screw 103 is weak, or when the conditions such as strong winds such as typhoon, building shape, and other factors cause the deck plate 101 to easily vibrate, the anchor and The screw 103 may be loosened and the disk 104 may be lifted.
In order to prevent such lifting, the top of the screw 103 and the waterproof sheet 106 are bonded and integrated to prevent the screw 103 from rotating, thereby preventing loosening of the screw 103 (special feature). Application 2005-087552).

  According to the proposed example, even if a large vibration occurs in the deck plate 101 or the like, the loosening of the screw 103 is effectively suppressed, and the disk 104 is prevented from being lifted. However, this detent is not sufficient to increase the integrated strength of the screw 103 and the deck plate 101 with respect to the pulling force of the screw 103, and when exposed to a severe environment such as a typhoon, the waterproof sheet 106 It is expected that the disk 104 will be beaten and the disk 104 will still float.

  An object of the present invention is to provide a waterproof sheet roof structure and a roof panel in which the pulling strength of the screw against the roof base material is enhanced, the return torque is improved, and the screw is not easily loosened even when repeated vibration such as strong wind vibration is applied. Is to provide.

  The waterproof sheet roof structure of the present invention includes a roof base material made of a metal plate, a heat insulating material laid on the roof base material, a waterproof sheet covering the heat insulating material, and the heat insulating material and the roof base material. A waterproof sheet roof structure comprising a tapping screw type screw that is screwed into a hole formed in the roof base material and fixes the heat insulating material to the roof base material, the back surface of the roof base material meshing with the screw A screw clip that engages with the screw is provided. The roof base material may be a deck plate or the like.

  According to this structure, a heat insulating material is fixed to the roof base material made from a metal plate with a tapping screw type screw. In this case, since the screw clip that engages with the screw and engages the back surface of the roof base material is provided, the screw clip is caught on the back surface of the roof base material when a pulling load is applied to the screw. The pullout strength is improved as compared with the case of engagement with only the thread. Since the screw clip engages with the screw, the return torque is also strengthened. Therefore, even if repeated vibrations are applied due to strong wind vibrations that exceed expectations, it is difficult for the screws to loosen due to the improvement of the pulling strength and the return torque of the screws. Further, even if the heat insulating material is stepped on by a person and the restoring force of the heat insulating material is reduced, since the return torque of the screw is large as described above, it is difficult for rotation to be loosened. Since the screw clip can be attached by engaging with a screw, it is excellent in workability.

  In the present invention, the screw clip may be a leaf spring. When a leaf spring is used, vibration is absorbed by elastic deformation, and the effect of preventing the screw from loosening by the screw clip is improved.

  In this invention, it is good also as a lock nut engaged with the back surface of the said roof base material by screwing into the said screw instead of the said screwing clip. When the lock nut is used, the meshing gap between the screw and the female screw of the roof base material can be eliminated, and the effect of preventing the screw from rotating and loosening is further improved. Moreover, since this lock nut engages with the back surface of the roof base material, the pull-out strength of the screw is enhanced in the same manner as the screw clip.

The waterproof sheet roof panel of the present invention is a roof panel constituting the waterproof sheet roof structure according to any one of claims 1 to 3, wherein a plurality of the waterproof sheet roof panels are arranged side by side. A roof base material stretched on a frame, a waterproof sheet covering the heat insulating material, the screw, and the screw clip or the lock nut.
According to the waterproof sheet roof panel having this configuration, a plurality of sheets are arranged side by side to constitute the waterproof sheet roof structure of the present invention, and the above-described effects in the waterproof sheet roof structure of the present invention can be obtained. The process of attaching the screw clip or lock nut is a work at a high place in the case of a roof structure constructed on site, but if it is a roof panel, the screw clip or lock nut is attached at the factory etc. Therefore, deterioration of workability due to the addition of a screw clip or the like is avoided.

  The waterproof sheet roof structure of the present invention includes a roof base material made of a metal plate, a heat insulating material laid on the roof base material, a waterproof sheet covering the heat insulating material, and the heat insulating material and the roof base material. A waterproof sheet roof structure comprising a tapping screw type screw that is screwed into a hole formed in the roof base material and fixes the heat insulating material to the roof base material, the back surface of the roof base material meshing with the screw Since the screw clip that engages with the screw is provided, the pulling strength of the screw against the roof base material is strengthened, the return torque is improved, and even when repeated vibration such as strong wind vibration is applied, the screw is not easily loosened. Is obtained.

  The waterproof sheet roof panel of the present invention has an enhanced pulling strength for the roof base material of the screw in the waterproof sheet roof structure of the present invention, and the return torque is improved, even if repeated vibration such as strong wind vibration is applied, the rotation of the screw The effect that it is difficult to cause loosening is obtained, and the deterioration of workability due to the addition of a screw clip or the like is avoided, and the productivity is excellent.

A first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a cross-sectional view of the main part of the waterproof sheet roof structure of this embodiment. FIGS. 2A and 2B show an example of a screw clip used in the waterproof sheet roof structure, and FIG. An example of construction method is shown.
This waterproof sheet roof structure A includes a corrugated roof base material 1 made of a metal plate made of a deck plate, a heat insulating material 2 made of rock wool board, gypsum board or the like laid on the roof base material 1, and A waterproof sheet 6 covering the heat insulating material 2 and a tapping screw type screw 3 are provided. The screw 3 passes through the heat insulating material 2 and the roof base material 1 and is screwed into a hole 1 a formed in the roof base material 1. The hole 1a of the roof base material 1 may be provided as a lower hole, or may be formed when the screw 3 is screwed with the screw 3 as a tapping screw with a drill. The waterproof sheet roof structure A of this embodiment is characterized in that, in the above-described configuration, a screwing clip 7 made of a leaf spring is provided which engages with the screw 3 and engages the back surface of the roof base material 1.

  A disk 4 is integrally mounted on the head 3 a of the screw 3. The surface of the disk 4 is coated with a fusion resin 5 before being integrated with the screw 3, and the disk 4 and the waterproof sheet 6 are fused by the fusion of the fusion resin 5 by heating the disk 4 with high frequency heating or the like. Are fixed together.

  The screw clip 7 is made of a leaf spring, and is obtained by processing a steel plate such as spring steel into a shape as shown in FIGS. 2 (A) and 2 (B). The screw clip 7 has a meshing hole 7b formed by punching so as to mesh with the threaded portion 3b of the screw 3 at the approximate center of a plate spring main body 7a formed in a square and curved state. In this leaf spring body 7a, two parallel slits 7c, 7c along the longitudinal direction are formed so as to sandwich the meshing hole 7b, and further, a notch 7d for communicating the slits 7c, 7c and the meshing hole 7b. , 7d are formed. Thereby, a pair of spring tongue pieces 7e and 7e which are opposed to each other in the longitudinal direction and in which the engagement hole 7b is located are formed. The spring tongues 7e and 7e are curved with a smaller radius of curvature than the leaf spring body 7a so as to protrude toward the convex curved surface side of the leaf spring body 7a.

Explaining the construction method, after fixing the heat insulating material 2 to the roof base material 1 with screws 3, the screw clips 7 are attached to the portions of the screws 3 protruding downward from the roof base material 1.
At the construction site, fixing work such as screwing of the screw 3 is work from the roof, and the screwing clip 7 is also attached from the roof. The screwing clip 7 is schematically shown in FIG. You may make it attach from the downward direction of a roof using the attachment jig 21 shown in a figure. The mounting jig 21 is provided with a magnet-attached head 23 on the upper surface of the bar material 22 and a grip portion 24 provided at the lower end of the bar material 22 for attracting the screwing clip 7 on the upper surface. The head 23 with magnet has a concave shape in which the upper surface can stably mount the screw clip 7 and has a relief hole (not shown) for the screw 3 at the center of the upper surface.
As shown in the figure, the mounting jig 21 is placed on the upper surface of the magnet-equipped head 23 in an attracting state so that the screw 3 enters the engagement hole 7b of the screwing clip 7, so that the mounting jig 21 is lifted. The screwing clip 7 is pushed up by the mounting jig 21 until it stably touches the lower surface of the roof base plate 1, and then the mounting jig 21 is lowered.

  Since the screw clip 7 has a pair of spring tongues 7e, 7e that protrude downward at the tip, the spring tongues 7e, 7e act as check pawls, and the screw 3 is engaged with the engagement hole 7b. The screwing clip 7 is prevented from coming off by engagement with the spring tongues 7e and 7e. As described above, when the mounting jig 21 having the magnet-equipped head 23 is used, the screwing clip 7 can be easily mounted from below the roof.

  According to the waterproof sheet roof structure of this configuration, the heat insulating material 2 is fixed to the roof base material 1 made of a deck plate by screws 3. In this case, since the screw clip 7 that engages with the screw 3 and engages with the back surface of the roof base material 1 is provided, the screw clip 7 is attached to the back surface of the roof base material 1 when a pulling load is applied to the screw 3. Therefore, the pull-out strength is improved as compared with the case of engagement with only the screw 3 of the normal screw 3. Since the screw clip 7 is engaged with the screw 3, the return torque is also strengthened. Therefore, even if repeated vibrations are applied due to strong wind vibration exceeding expectations due to a typhoon or the like, the screw 3 is less likely to be loosened due to the improvement of the pull-out strength and the return torque of the screw 3. Further, even when a person gets on the roof, even if the heat insulating material 4 is stepped on by a person and the restoring force of the heat insulating material 4 decreases, the return torque of the screw 3 is large as described above, so Looseness is unlikely to occur.

Since the screw clip 7 can be mounted by being engaged with the screw 7, it is excellent in workability. If the mounting jig 21 as shown in FIG. 3 is used, construction can be made even more easily.
When the screwing clip 7 is a leaf spring as in this embodiment, vibration is absorbed by elastic deformation, and the effect of preventing the screw 3 from loosening by the screwing clip 7 is improved. In addition, when a leaf spring is used, the mounting work of the screw clip 7 is facilitated.
Further, in this embodiment, the head 3a of the screw 3 is bonded to the waterproof sheet 6 via the disk 4, and thereby the anti-rotation action of the screw 3 is obtained, so that the rotational loosening of the screw 3 is further less likely to occur. .

4 and 5 (A) and 5 (B) show a second embodiment of the waterproof sheet roof structure according to the present invention. FIG. 4 is a cross-sectional view of the main part of the waterproof sheet roof structure of this embodiment, and FIGS. 5A and 5B show an example of a screw clip used in the waterproof sheet roof structure. A top view and (B) show the YY sectional view taken on the line in (A).
The waterproof sheet roof structure B according to this embodiment includes a roof base material 1, a heat insulating material 2, a tapping screw type screw 3 for fixing both of them, and a disk 4 attached to a head 3 a of the screw 3. Although the basic structure is constituted by the waterproof sheet 6 fixed integrally by wearing, it is the same as in the first embodiment, but is screwed to mesh with the screw 3 and engage the back surface of the roof base material 1. The shape of the clip 8 is different.

  The screw clip 8 is also made of a leaf spring, and is formed as shown in FIG. The screw clip 8 is formed in a box shape with a pentagonal cross section having a pair of spring pieces 8a, 8b inclined in a roof shape, and the inclined heads of the spring pieces 8a, 8b are the diameter of the screw portion 3b of the screw 3. It is opposed to the upper and lower steps with a smaller gap d. Moreover, the long hole 8c which can loosely insert the screw part 3b of the screw | thread 3 is formed in the bottom part. When the leaf spring 8 passes through the heat insulating material 2 and the roof base material 1 and is screwed into the hole 1a formed in the roof base material 1, the leaf spring 8 is inverted up and down as shown in FIG. It is applied so that it contacts and engages the back surface of the material 1. When the tip of the screw 3 is inserted into the elongated hole 8c and screwing is continued, the screw 3b of the screw 3 interrupts the gap d between the inclined heads of the spring pieces 8a and 8b. At the same time, the screw 3b of the screw 3 is engaged with the inclined head edges of the spring pieces 8a and 8b, and the spring action of the spring pieces 8a and 8b is elastically deformed so as to buckle by the screw action at the meshed part accompanying the screwing. The leaf spring 8 is elastically pressed against the back surface of the roof base material 1 by the restoring elasticity accompanying the elastic deformation.

  Accordingly, the elastically deformed spring pieces 8 a and 8 b have a restoring elasticity, and a pulling strength is given to the screw 3. Thereby, the screw 3 and the roof base material 1 are strongly integrated, and the screw 3 is reliably prevented from being loosened. In addition, if the anti-rotation treatment by the adhesion between the screw 3 and the sheet 6 is used in combination, the integration of the screw 3 and the roof base material 1 is made stronger as described above. .

6 and 7 (A) and 7 (B) show a third embodiment of the waterproof sheet roof structure according to the present invention. FIG. 6 is a cross-sectional view of the main part of the waterproof sheet roof structure of this embodiment. FIGS. 7A and 7B show an example of a lock nut used in the waterproof sheet roof structure, and FIG. The figure and (B) show the ZZ line sectional view in (A).
The waterproof sheet roof structure C according to this embodiment includes a roof base material 1, a heat insulating material 2, a tapping screw type screw 3 for fixing both of them, and a disk 4 attached to a head 3 a of the screw 3. Although the basic structure is constituted by the waterproof sheet 6 fixed integrally by wearing, it is similar to the first and second embodiments, but meshes with the screw 3 and engages with the back surface of the roof base material 1. The difference is that a lock nut 9 is used in place of the screwing clip.

  The lock nut 9 is formed by drawing spring steel into an outer shape of a hexagonal nut, a central portion thereof is a curved concave portion 9a, and a screw hole 9b is formed at the central portion of the curved concave portion 9a. . When the lock nut 9 passes through the heat insulating material 2 and the roof base material 1 and is screwed into the hole 1a formed in the roof base material 1, the lock nut 9 is turned upside down as shown in FIG. The opposite side is applied so as to contact and engage the back surface of the roof base material 1. And if the front-end | tip part of the screw | thread 3 is inserted in the screw hole 9b and screwing is continued, the screw part 3b of the screw | thread 3 will be screwed by the screw hole 9b. By this screwing, the curved concave portion 9a is further bent elastically deformed, and the lock nut 9 is fastened to the screw portion 3b of the screw 3 and is engaged with the back surface of the roof base material 1 in a state of having a restoring elasticity accompanying elastic deformation.

  Accordingly, a pull-out force is imparted to the screw 3 by the lock nut 9 that is fastened with the restoring elasticity retained. Thereby, the screw 3 and the roof base material 1 are strongly integrated, and the screw 3 is reliably prevented from being loosened. If the anti-rotation treatment as described above is used in combination, the screw 3 and the roof base material 1 are more firmly integrated with each other as described above.

8 and 9 show a fourth embodiment of the waterproof sheet roof structure according to the present invention. FIG. 8 is a cross-sectional view of the main part of the waterproof sheet roof structure of this embodiment, and FIG. 9 is a plan view showing an example of a lock nut used in the waterproof sheet roof structure.
The waterproof sheet roof structure D according to this embodiment includes a roof base material 1, a heat insulating material 2, a tapping screw type screw 3 that fixes both of them, and a disk 4 attached to a head 3 a of the screw 3. The basic structure is constituted by the waterproof sheet 6 fixed integrally by wearing, similar to the first embodiment, but screwed into the screw 3 and engaged with the back surface of the roof base material 1. This is different from the third embodiment in that the lock nut 10 is a wing nut-shaped synthetic resin lock nut.

  The lock nut 10 is a molded body of synthetic resin, and includes a screw hole 10b at the center of the body portion 10a and a pair of knobs 10c and 10c at the peripheral portion. When the lock nut 10 passes through the heat insulating material 2 and the roof base material 1 and is screwed into the hole 1a formed in the roof base material 1, the lock nut 10 is turned upside down as shown in FIG. The opposite side is applied so as to contact and engage the back surface of the roof base material 1. Then, when the distal end portion of the screw 3 is inserted into the screw hole 10b and the screwing is continued, the screw portion 3b of the screw 3 is screwed into the screw hole 10b. By this screwing, the lock nut 10 is fastened to the screw portion 3 b of the screw 3 and engaged with the back surface of the roof base material 1. Thereby, the screw 3 and the roof base material 1 are strongly integrated, and the screw 3 is reliably prevented from being loosened. In addition, if it is made to use the said anti-rotation treatment together, it is the same as that of the above that integration with the bis | screw 3 and the roof base material 1 is made stronger. Further, the shape of the lock nut 10 is not limited to that shown in the drawings, and other wing nut shapes may be employed.

  Also in the waterproof roof structures B to D of the embodiments of FIGS. 4 to 9, the screw 3 is reinforced by the screw clip 8 or the lock nuts 9 and 10, and the pulling strength at the screw portion 3 b of the screw 3 is improved and returned. Since the torque is improved, the screw 3 does not loosen even if strong vibrations are repeatedly applied by a strong wind exceeding the expectation. Further, even if an external force is applied to the heat insulating material 2 under the disk 4 and its restoring force is reduced, the return torque of the screw portion 3b is large as described above, so that the rotation is hardly loosened. Further, when a pulling force is applied to the screw 3, the screwing clip 8 or the lock nuts 9 and 10 are also hooked on the roof base material 1, so that the pulling strength is improved as compared with the case of only a normal thread.

FIG. 10 is a partially cutaway perspective view of a roof panel provided with the waterproof sheet roof structure of the embodiment. A plurality of the roof panels are arranged side by side to constitute a roof.
The roof panel P of this embodiment is obtained by installing any one of the waterproof sheet roof structures A to D configured as described above on a steel frame 11. Therefore, the roof base material 1, the heat insulating material 2, and the waterproof sheet 6 constituting this structure are denoted by the same reference numerals. Further, the illustration of the screw and the related part is omitted. These structures are installed on the panel frame 11 by stretching a corrugated roof base material 1 as shown in the figure on the panel frame 11. The side edge portion of the waterproof sheet 6 protrudes outward, which can be easily constructed to ensure waterproof continuity between adjacent roof panels P by overlapping and welding the protruding portions. It is to make it.

  The panel frame 11 is assembled and formed in a ladder shape in plan view by the left and right vertical frame members 11a, 11a and the horizontal frame members 11b orthogonal to the left and right vertical frame members 11a, 11a, and on the outer surface side of the left and right vertical frame members 11a, 11a. As shown in the figure, a joining bracket 12 made of an angle material and a support bracket 13 made of an angle material are alternately attached at intervals. In the construction of the roof, the vertical frame members 11a and 11a are made to follow the steel beam (not shown) of the building frame, and the joint bracket 12 and the support bracket 13 are placed on the steel beam. The support bracket 13 is merely supported by the steel beam, and the joint bracket 12 is joined to the steel beam by an appropriate joint tool (not shown) such as a bolt and a nut. Moreover, the overhang | projection part of the waterproof sheet 6 in the adjacent roof panel P is piled up and welded. Thereby, the installation construction of the roof panel P is completed.

  Since the roof panel P in the present invention is assembled in a factory and installed on the building frame at the site, the mounting of the screw clips 7, 8 or the lock nuts 9, 10, etc. is not performed from the back side of the panel. It is more rational and efficient than the on-site construction method that has to take one-way work from above.

  Note that the roof base material 1 is not limited to a wave shape, and other shapes may be employed. Furthermore, the screw clips 7 and 8 or the lock nuts 9 and 10 are not limited to those shown in the drawings, and may be used to engage with or screw into the screws 3 to engage the back surface of the roof base material 1. For example, other shapes are also used.

It is principal part sectional drawing of the waterproof sheet roof structure of 1st Embodiment. An example of the screwing clip used for the waterproof sheet roof structure is shown, (A) is a plan view, and (B) is a sectional view taken along line XX in (A). It is explanatory drawing of the construction method in 1st Embodiment. It is principal part sectional drawing of the waterproof sheet roof structure of 2nd Embodiment. An example of the screw clip used for the waterproof sheet roof structure is shown, (A) is a plan view, and (B) is a YY line cross-sectional view in (A). It is principal part sectional drawing of the waterproof sheet roof structure of 3rd Embodiment. An example of the lock nut used for the waterproof sheet roof structure is shown, (A) is a plan view, and (B) is a ZZ line sectional view in (A). It is principal part sectional drawing of the waterproof sheet roof structure of 4th Embodiment. It is a top view of an example of the lock nut used for the waterproof sheet roof structure. It is a notch perspective view of a part of roof panel provided with the waterproof sheet roof structure of this invention. It is principal part sectional drawing of the conventional waterproof sheet roof structure.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Roof base material 1a ... Hole 2 ... Heat insulating material 3 ... Screw 6 ... Waterproof sheet 7 ... Screw clip 8 ... Screw clip 9 ... Lock nut 10 ... Lock nut 11 ... Panel frame A ... Waterproof sheet roof structure B ... Waterproof Sheet roof structure C ... tarpaulin roof structure D ... tarpaulin roof structure P ... roof panel

Claims (4)

A roof base material made of a metal plate, a heat insulating material laid on the roof base material, a waterproof sheet covering the heat insulating material, and a hole formed in the roof base material through the heat insulating material and the roof base material A waterproof sheet roof structure provided with a tapping screw type screw that is screwed into and fixed to the roof base material.
The waterproof sheet roof structure characterized by providing the screwing clip which meshes | engages with the said screw and engages with the back surface of the said roof base material.   The waterproof sheet roof structure according to claim 1, wherein the screw clip is a leaf spring.   2. The waterproof sheet roof structure according to claim 1, wherein a lock nut that is screwed into the screw and engaged with a back surface of the roof base material is provided instead of the screw clip. It is a roof panel which comprises the waterproof sheet roof structure in any one of Claims 1 thru | or 3 by being arranged in multiple numbers, Comprising: A panel frame and the roof base material stretched on this panel frame, A waterproof sheet roof panel comprising a waterproof sheet covering the heat insulating material, the screw, and the screw clip or the lock nut.

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