JP2007092307A - Safety belt fixture structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a safety belt fixture structure capable of ensuring sufficient strength and waterproofing property. <P>SOLUTION: In a penthouse roof forming a water drip 5 in the top section of roofing 4 on one side having a rafter 2 and a sheathing roof board 3 so that they can go up to one side and go down to the other side from the above of a ridge beam 1 and roofing the sheathing roof board 3 with the roofing 4, it is a mounting structure fixing a safety belt fixture 7 through a metal fixture 6 on the ridge beam 1, the metal fixture 6 is equipped with a fitting section 61 fitted to the ridge beam 1, a bolt 62 and a nut 63, a fixed surface 64 fixing the safety belt fixture 7 and a supporting section 65 supporting the fixed surface 64 extended by the same inclination as that of the rafter 2 from an upper abutting surface 61a, the bolt 62 is inserted in a hole 11 of the ridge beam 1 in a state to fit the fitting section 61 to the ridge beam 1, the ridge beam 1 is held and fixed with the bolt 62 and the nut 63 between both side abutting surfaces 61b of the fitting section 61, and in such a fixed state, the safety belt fixture 7 is fixed to the fixed surface 64 to expose the safety belt fixture 7 from between the roofing 4 and the water drip 5. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a safety belt attachment structure for attaching a safety belt during roof maintenance and inspection.

  In general, in high-altitude work such as maintenance and inspection of roofs of residential buildings, in order to prevent dangers due to falling and sliding down, the safety belt attached by the worker is used as a safety belt fixture provided on the roof ridge. Worked in conjunction.

Conventionally, when a ridge tile is fixed to a purlin, such a safety band mounter has been fixed with a safety band mount interposed between the ridge tile and the purlin. And it was made to expose a safety belt fixture from between the roof tile and the roof tile (refer patent documents 1 and 2).
JP-A-8-1335096 JP-A-7-324448

  However, in the case of a single-floored roof of a wooden house without a purlin, the base plate of the ridge portion is provided on the ridge portion of the rafters and the field plate, and the floor plate is finished with a drainer. Even if the safety band fixture is fixed to the base plate, sufficient strength cannot be secured. In particular, in the case of a single-flow roof where rafters and field boards are extended on one side of the ridge, and the back of the eaves is formed, the load applied to the extended rafters and field boards increases, so the strength of the ridge is insufficient. It becomes easy, and sufficient strength cannot be secured.

  In addition, if the safety band fixture is fixed to the base plate while avoiding the base plate, it will be easy to interfere with the roof tile provided on the base plate, and the safety band fixture must be exposed from the gap between the roof tiles. Therefore, it becomes difficult to ensure waterproofness.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a safety band attachment structure capable of ensuring sufficient strength and waterproofness.

  The safety band attachment structure of the present invention for solving the above problems is provided with rafters and a field board so as to rise from one side to the other side on the ridge beam, and down the roofing material on the field board, In a single-flow roof with a back of the eaves that is provided with a drainer on the top of the roofing material on one side, a mounting structure is provided on the ridge beam, and a safety band mounting tool is fixed to the mounting bracket. The bracket is formed in a U-shaped cross section by the upper contact surface and both contact surfaces that are in contact with the upper surface and both side surfaces of the ridge beam, and is horizontally penetrated with the fitting portion that is fitted from above the ridge beam. Bolts and nuts that are inserted into the holes of the ridge beam and clamp the ridge beam between the contact surfaces on both sides, a fixed surface to which the safety band mounting fixture is fixed, and the upper abutment surface are extended at the same inclination as the rafters, and roofing materials Support for supporting the fixed surface between the water drainer The bolt is inserted into the hole drilled in the ridge beam with the fitting part fitted to the ridge beam, and the ridge beam is sandwiched and fixed between the abutting surfaces by the bolt nut, and fixed in this fixed state. The safety belt fixture is fixed to the surface so that the safety belt fixture is exposed from between the roofing material and the drainer.

  As described above, according to the present invention, the bolt is inserted into the hole drilled in the ridge beam in a state in which the fitting portion is fitted to the ridge beam, and the ridge beam is sandwiched and fixed between the abutting surfaces by the bolt nuts. A fixing bracket is fixed on the ridge beam, and in this fixed state, a support portion extending from the contact surface of the fitting portion with the same inclination as the rafter supports the fixing surface between the roofing material and the draining device. Therefore, the safety band fixture that is fixed to the fixed surface of this fixing bracket exposes the safety band fixture from between the roof covering material and the drainer, and has sufficient strength even though it is on a single-flow roof with the eaves back. Can be secured.

  Also, in this fixed state, the fixing bracket fixes the safety band fixture to the fixed surface supported between the roof fence and the drainer, and exposes the safety band fixture from between the roof anchor and the drainer. Waterproofness can be ensured.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows an outline of the overall structure of the safety band mounting structure, FIGS. 2 to 4 show the construction state of the safety band mounting structure, and FIG. 5 shows a fixing bracket used in the safety band mounting structure. The construction status is shown.

  That is, in this safety band attachment structure, the rafter 2 and the field plate 3 are provided so as to rise from the top of the building beam 1 to the other side and to the other side. In the single-flow roof having the eaves back provided with a drainer 5 on the top of the roof covering material 4, the fixing bracket 6 is provided on the ridge 1, and the safety band fixture 7 is fixed to the fixing bracket 6. .

  The rafters 2 are provided on the one-sided roof so as to rise from the top of the master beam 1 to one side and to the other side.

  At the upper end lip of the rafter 2, a one-building windbreak base plate 21 is provided. An outer wall panel 8 is provided on one side surface of the ridge beam 1 on the side where the one-building breakage ground plate 21 is provided, and the rafter 2 between the outer wall panel 8 and the one-building breakage windbreak base plate 21 includes an eaves. The back panel 9 is provided, and the back of the eaves is formed on the lower side from the one-building breezy base plate 21 to the outer wall panel 8. Further, a base plate 22 of the drainer 5 is provided on the upper surface in the vicinity of the upper end portion of the rafter 2 so as to be continuous with the one-building breakage base plate 21 provided at the end of the rafter. The base plate 22 is configured to open only at a portion where the fixing bracket 6 is attached.

  The base plate 3 is provided on the upper surface of the rafter 2 below the base plate 22.

  The roof covering material 4 is made of cement tile and is spread down on the base plate 3.

  The drainer 5 is provided on the surfaces of the one-building windbreak base plate 21 and the base plate 22. Prior to providing the drainer 5, a discarded drainer 51 is provided on the surface of the base plate 22. The draining drainer 51 is formed along the upper end portions of the base plate 22 and the base plate 3 so that the upper end portion of the roof covering material 4 can be inserted into the portion along the upper end portion of the base plate 3. The made insertion part 51a is formed. Further, in the portion along the base plate 22, a recessed portion 51 b is formed at a portion where the fixing bracket 6 is attached.

  As shown in FIG. 5, the fixture 6 is formed in a U-shaped cross section by an upper contact surface 61a and both side contact surfaces 61b and 61b that are in contact with the upper surface 1a and both side surfaces 1b and 1b of the ridge beam 1. A fitting portion 61 fitted from above 1, a bolt 62 and a nut 63 which are inserted into the hole 11 of the ridge beam 1 penetrating in the horizontal direction and sandwich and fix the ridge beam 1 between both side contact surfaces 61b, 61b; A fixing surface 64 to which the safety band fixture 7 is fixed, and a support portion 65 that extends from the abutment surface 61 at the same inclination as the rafter 2 and supports the fixing surface 64 between the roof gutter 4 and the drainer 5; It comprises. The fitting portion 61 is made of a steel plate bent into a U-shaped cross section so that it can be fitted from above the ridge beam 1, and can be brought into contact with the upper surface 1a and both side surfaces 1b, 1b of the ridge beam 1 in the fitted state. The upper contact surface 61a and both contact surfaces 61b and 61b are formed. An insertion hole 61c for a bolt 62 is formed in both side contact surfaces 61b, 61b of the fitting portion 61. A support portion 65 is formed on the upper side of the fitting portion 61 by welding and fixing a steel plate having a thickness of about 6 mm. The support portion 65 extends upward and is fixed by welding so as to have the same inclination as the rafter 2 provided so as to rise from the top of the master beam 1 to the one side. In addition, the square pipe 66 is fixed by welding from both sides of the support portion 65, and the plate 67 is fixed by welding between the upper and lower surfaces of the square pipe 66 and the upper contact surface 61a. Among these, the plate 67 on the upper surface side of the square pipe 66 is formed to have a width substantially equal to the width of the upper contact surface 61a, and a substantially square plate 68 is welded and fixed to both sides thereof to reinforce the plate 67. Has been made. A fixing surface 64 made of a steel plate is fixed to the upper surface of the support portion 65 by welding.

  In order to fix the fixing bracket 6 to the ridge beam 1, a hole 11 for inserting a bolt 62 is first drilled between both side surfaces 1b, 1b of the ridge beam 1 to which the fixing bracket 6 is to be fixed. This hole 11 is drilled so as to match the insertion hole 61c of the bolt 62 drilled in the both side contact surfaces 61b, 61b of the fitting portion 61. Then, the fitting portion 61 of the fixing bracket 6 is fitted from above the ridge beam 1, and the upper contact surface 61 a and both side contact surfaces 61 b, 61 b of the fitting portion 61 are fitted to the upper surface 1 a and both side surfaces 1 b, 1 b of the ridge beam 1. , The bolt 62 is inserted into the hole 11 of the matching ridge beam 1 and the insertion holes 61c and 61c of the both side contact surfaces 61b and 61b, and the nut 63 is fastened. As a result, the fixing bracket 6 is fixed to the master beam 1. The master beam 1 is formed in a long shape having a width of 120 mm and a height of 210 mm, and the rafter 2 is formed in a long shape having a width of 38 mm and a height of 89 mm. It is configured together. The dimensions of the fixing bracket 6 are not particularly limited to those described above, and are appropriately changed according to the size of the ridge beam 1. Specifically, the dimensions are such that the safety band fixture 7 fixed to the fixing surface 64 of the fixing bracket 6 can be fixed so as to ensure strength that does not break when a tensile load of 11.5 kN is applied.

  The safety band attaching tool 7 is formed by bending both ends of a long plate-shaped steel plate, one end side is a mounting part 71 for attaching a safety band (not shown), and the other end side is for fixing the fixing bracket 6. A fixing portion 72 for fixing to the surface 64 is formed. The safety band attaching device 7 is fixed by abutting the fixing portion 72 against the fixing surface 64 of the fixing metal 6 and fixing them with bolts 73. In the state where the safety band fixture 7 is fixed to the fixing bracket 6, the central main body portion 70 of the safety band fixture 7 is made to follow the slope of the roof at the gap between the roof covering material 4 and the drainer 5. A mounting portion 71 bent upward at a position on the outer side from 5 protrudes.

  Next, the construction method of this safety belt attachment structure is demonstrated.

  First, as shown in FIG. 2, when constructing a housing such as the master beam 1, the rafters 2, the single-building windbreak base plate 21, and the base plate 22, the fixing bracket 6 is fixed to the master beam 1 in the manner described above. At this time, the fixing surface 64 of the fixing metal 6 is exposed from the opening portion where the base plate 22 is cut out.

  Thereafter, as shown in FIG. 3A, the base plate 3 is provided on the upper surface of the rafter 2 below the base plate 22.

  Next, as shown in FIG. 3B, a draining drainer 51 is provided on the surface of the base plate 22.

  Thereafter, as shown in FIG. 4A, the roof covering material 4 is inserted into the insertion part 51 a of the draining drainer 51 and the roof covering material 4 is spread on the base plate 3. Further, the fixing portion 72 of the safety band attaching tool 7 is fixed to the fixing surface 64 of the fixing metal 6 with a bolt 73. At this time, a watertight material 74 made of an elastic body that closes a gap between the safety band mounting tool 7 and the drainer 5 provided on the surface of the draining drainer 51 is provided on the upper surface of the fixing portion 72 of the safety band mounting tool 7. .

  And finally, as shown in FIG.4 (b), the drainer 5 is provided and finished from this discarded drainer 51. FIG.

  According to this safety band attachment structure, the safety band attachment 7 is not fixed to the base plate 22 provided on the rafter 2 but is fixed via the fixing bracket 6 that is firmly fixed to the ridge 1. Therefore, sufficient strength can be ensured. In addition, since the fixture 6 secures the rigidity in the horizontal direction by welding and fixing the square pipe 66 and the plates 67 and 68 to the support portion 65, the fixture 6 is sufficient for the load applied in the horizontal direction. High strength can be ensured.

  Further, in this fixed state, the safety band fixture 7 is fixed to the fixing surface 64 of the fixing bracket 6 supported between the roof covering 4 and the drainer 5 and exposed from between the roof anchor 4 and the drainer 5. Therefore, waterproofness can be easily ensured.

  In the present embodiment, the roof covering material 4 is a normal cement tile, but by using a draining drainer 51 that matches the roof covering material 4, various roof covering materials 4 such as clay tiles and metal tiles are used. May be.

  It can be used for a residential building having a safety belt attachment for attaching a safety belt for roof maintenance and inspection.

It is sectional drawing which shows the outline of the whole structure of the safety belt attachment structure which concerns on this invention. It is a fragmentary perspective view which shows the construction process of a safety belt attachment tool structure. (A) And (b) is a fragmentary perspective view which shows the construction process of a safety belt fixture structure. (A) is a fragmentary perspective view which shows the construction process of the safety band attachment structure concerning this invention, (b) is a fragmentary perspective view which shows the construction completion state. It is a perspective view explaining the fixed state of the fixture used for the safety belt attachment structure concerning this invention, and a ridge beam.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Master beam 1a Upper surface 1b Both sides 11 Hole 2 Rafter 3 Field plate 4 Roof covering material 5 Draining 6 Fixing bracket 61 Fitting part 61a Upper contact surface 61b Both side contact surface 62 Bolt 63 Nut 64 Fixed surface 65 Support part 7 Safety belt mounting tool

Claims (1)

A rafter and a field board are provided so as to rise from one side of the master beam to the other side and down to the other side. A roof eave is provided on the top of the field board and a drainage is provided on the top of the roof eave on one side. In a single-flow roof, a fixing bracket is provided on the ridge beam, and a safety band fixture is fixed to the fixing bracket.
The fixing bracket is formed in a U-shaped cross section by an upper contact surface and both side contact surfaces that are in contact with the upper surface and both side surfaces of the ridge beam, and is penetrated in a horizontal direction with a fitting portion that is fitted from above the ridge beam. Bolts and nuts that are inserted into the holes of the ridge beam and clamp the ridge beam between the abutting surfaces on both sides, a fixing surface to which the safety belt mounting fixture is fixed, and the upper abutting surface extending at the same inclination as the rafters, and the roof A support portion for supporting the fixed surface between the brazing material and the drainer;
The bolt is inserted into the hole drilled in the ridge beam with the fitting part fitted in the ridge beam, and the ridge beam is clamped and fixed between the both abutting surfaces by the bolt nut, and in this fixed state, the safety band is attached to the fixed surface A safety belt attachment structure characterized in that the safety belt attachment device is exposed from between the roof covering material and the drainer with the device fixed.

Images