JP4428294B2 - Safety belt mounting structure - Google Patents

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 addition, if the safety band fixture is fixed to the ridge of the field plate, avoiding the base plate, it will easily interfere with the roof tiles provided on the field plate, and the structure will be such that the safety band fixture is exposed from the gap between the roof tiles. Therefore, it is 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.

  In order to solve the above-mentioned problems, the safety band fixture structure of the present invention is provided with rafters and a field board on the side of the ridge, only on one side of the ridge, and a roof covering material is dropped on the field board, and a drainage is provided on the ridge. In the 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 includes a contact surface that contacts the ridge beam, An insertion portion extending below the contact surface, a drift pin inserted from a horizontal direction into a hole drilled in the insertion portion, a fixed surface to which the safety band fixture is fixed, and the contact surface It is extended to the upper side and has a support part that supports the fixed surface between the roofing material and the drainer. The insertion part is inserted into the hole drilled in the ridge beam, and the contact surface abuts on the ridge beam. In this state, the drift pin is driven into the insertion part from the side of the master beam. Is fixed to, in this fixed state, in which safety belts fixture from between the fixed safety belt fitting roofing material and draining the fixing surface is adapted to expose.

  As described above, according to the present invention, the drift pin is driven from the side surface of the ridge beam to the insertion portion in a state where the insertion portion is inserted into the hole drilled in the ridge beam and the contact surface is in contact with the ridge beam. Since the fixing bracket is fixed on the ridge beam, the safety band mounting fixture fixed to the fixing surface of the fixing bracket can ensure sufficient strength.

  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 belt attachment structure, a rafter 2 and a field board 3 are provided only on one side of the building beam 1, a roof covering 4 is dropped on the field board 3, and a drainer 5 is provided on the building part. In such a single-flow roof, a fixing bracket 6 is provided on the ridge beam 1, and a safety band fixture 7 is fixed to the fixing bracket 6.

  The rafters 2 are provided in the single-flow roof so as to descend from the top of the ridge beam 1 to the one ridge side.

  At the upper end lip of the rafter 2, a one-building windbreak base plate 21 is provided. The outer wall panel 8 is provided on one side surface of the building beam 1 on the side where the one-building breakage ground plate 21 is provided, and the outer wall panel 8 does not form an eaves back below the one-building breakage windbreak plate 21. It is made to be continuous. Further, on the upper surface in the vicinity of the upper end portion of the rafter 2, a base plate 22 of the drainer 5 is provided so as to be continuous with the one-building breakage base plate 21 provided in the mouth. 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 waterproof sheet 9 is covered on the surfaces of the above-mentioned single-building breakage base plate 21, base plate 22 and field plate 3.

  The roof covering material 4 is made of clay tiles and is laid down on the base plate 3 covered with the waterproof sheet 9.

  The drainer 5 is provided on the surfaces of the one-building windbreak base plate 21 and the base plate 22 that cover the waterproof sheet 9. Prior to providing the drainer 5, a discarded drainer 51 and a presser plate 52 are provided on the surface of the base plate 22. The draining drainer 51 is provided so that the drainage 5 covers the upper side of the roof covering 4, while the bottom of the roof covering 4 along the upper ends of the base plate 22 and the base plate 3, similarly to the waterproof sheet 9. It is formed to wrap around to the side. The presser plate 52 is attached to the lower end portion of the surface along the upper surface of the base plate 22 of the draining drainer 51, and the roofing member is formed by the presser surface 52 a that forms a waveform along the surface of the roof member 4. The roof covering material 4 can be pressed from the upper side of 4. The holding surface 52a is provided with an elastic body 52b so that it can be compressed to close the gap with the roof gutter 4. The draining drainer 51 and the presser plate 52 may be formed in an integrated state in advance or may be formed separately.

  As shown in FIG. 5, the fixing bracket 6 includes an abutment surface 61 that abuts against the ridge beam 1, an insertion portion 62 that extends below the abutment surface 61, and the insertion portion 62. A drift pin 63 inserted into the drilled hole 62a from the horizontal direction, a fixing surface 64 to which the safety band fixture 7 is fixed, and an upper surface extending from the contact surface 61. A support portion 65 that supports the fixed surface 64 is provided therebetween. The abutment surface 61 is made of a steel plate that can abut on the ridge beam 1, and a steel pipe having a diameter of about 32 mm with a central interval of 100 mm is provided below the abutment surface 61 to have a length of about 95 mm. The insertion part 62 is formed by welding and fixing. A hole 62 a having a diameter of about 12.5 mm is drilled along a horizontal direction perpendicular to the insertion portion 62 at a position about 20 mm from the lower end portion of the insertion portion 62. A drift pin 63 made of a steel material having a diameter of about 12 mm is inserted into the hole 62a. On the upper side of the contact part 61 located between the plug-in parts 62, a pair of lip groove steels in which the groove bottom surfaces are integrated back to back are welded and fixed to have a length of about 210 mm to form a support part 65. Has been. The support portion 65 is welded and fixed so as to come to an eccentric position on the upside of the ridge in a state where the abutment portion 61 of the fixing bracket 6 is in contact with and fixed to the ridge beam 1. 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, first, a hole 11 for inserting the insertion portion 62 is drilled in the upper surface of the ridge beam 1 to which the fixing bracket 6 is to be fixed. Further, after inserting the insertion portion 62 into the hole 11, the hole 12 for driving the drift pin 63 from the side surface of the master beam 1 is also drilled. Then, after the contact portion 61 of the fixing bracket 6 is brought into contact with the upper surface of the ridge beam 1 so that the insertion portion 62 is inserted into the hole 11 of the ridge beam 1, the drift pin 63 is driven through the hole 12 of the ridge beam 1. 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 each dimension of the fixing bracket 6 is configured in accordance with the master beam 1. However, it is not particularly limited to the above-described ones, and is appropriately changed according to the size of the master 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 (a), when constructing a housing such as the master beam 1, the rafter 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, the base plate 3 is provided on the upper surface of the rafter 2 below the base plate 22.

  Next, as shown in FIG. 2 (b), the waterproof sheet 9 is covered on the surfaces of the one-building windbreak base plate 21, the base plate 22, and the base plate 3. At this time, the portion of the fixing surface 64 of the fixing metal 6 is cut and exposed in the waterproof sheet 9.

  Next, as shown in FIG. 3A, a draining drainer 51 and a presser plate 52 are provided on the surface of the base plate 22.

  Thereafter, as shown in FIG. 3 (b), the roof covering material 4 is inserted between the draining drainer 51 and the presser plate 52, 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. .

  Finally, as shown in FIG. 4, a drainer 5 is provided on the discarded drainer 51 and finished.

  According to this safety belt attachment structure, the safety belt 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 beam 1. Therefore, sufficient 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 an ordinary clay tile. However, various roofs such as cement tiles and metal tiles can be obtained by using a draining drainer 51 and a presser plate 52 that match the roof covering material 4. A brazing material 4 may be used.

  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. (A) And (b) is a fragmentary perspective view which shows the construction process of a safety belt fixture structure. (A) And (b) is a fragmentary perspective view which shows the construction process of a safety belt fixture structure. It is a fragmentary perspective view which shows the construction completion state of the safety belt attachment structure which concerns on this invention. 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 11 Hole 2 Rafter 3 Field plate 4 Roof covering material 5 Drainage 6 Fixing metal fitting 61 Contact surface 62 Insertion part 62a Hole 63 Drift pin 64 Fixing surface 65 Support part 7 Safety belt attachment tool

Claims (1)

A rafter and a field board are provided only on one side of the building from the top of the building, and the roofing material is laid down on the field board and a drainage is provided on the building, and a fixing bracket is provided on the building. A mounting structure in which a safety band fixture is fixed to a bracket,
The fixing bracket includes a contact surface that is in contact with the ridge beam, an insertion portion that extends below the contact surface, and a drift pin that is inserted from a horizontal direction into a hole drilled in the insertion portion. A fixing surface to which the safety belt fixture is fixed, and a support portion that extends upward from the abutment surface and supports the fixing surface between the roof covering material and the drainer,
While the insertion part is inserted into the hole drilled in the ridge beam and the contact surface is in contact with the ridge beam, the drift pin is driven from the side surface of the ridge beam to the insertion part and fixed on the ridge beam. In this fixed state, the safety band mounting tool structure is characterized in that the safety band mounting tool is fixed to the fixed surface so that the safety band mounting tool is exposed from between the roof covering material and the drainer.

Images