JP2011174301A - Method for ensuring safety of work on roof and mounting tool for safety measures used therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a safety-ensuring method considering safety of a work on a roof, such as an installation work of a solar panel, and to provide a mounting tool for safety measures used for the method. <P>SOLUTION: The safety-ensuring method adapts a method as follows. After the mounting tool 10 for safety measures provided with a mounting part 30 to which a main rope or a life rope is attached is fixed at a first position 41 in the vicinity of eaves of a roof, the mounting tool 10 for safety measures and a worker are tied by a first life rope, and in this state, another mounting tool 10 for safety measures is fixed at a second position 42 in the vicinity of the roof R. Then, after the mounting tool 10 for safety measures at the second position 42 and the worker are tied by a second life rope, the first life rope is removed from the mounting tool 10 for safety measures at the first position 41 or the worker. The mounting tools 10 for safety measures are fixed at a plurality of positions while moving horizontally in the vicinity of a ridge from the second position, and a main rope W is stretched among the mounting tools 10 for safety measures located in the vicinity of the ridge. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a safety ensuring method for improving the safety of work on a roof, and a safety measure fixture used therefor.

  Due to social demands for reducing greenhouse gases, solar power generation systems have been introduced in various places, and in particular, solar power generation systems are becoming widespread in ordinary houses. In the solar power generation system, a solar panel for performing solar power generation must be installed outdoors, and in a general house, a solar panel is generally installed on the roof. However, since ordinary houses have many sloped roofs, it is not easy to install large and heavy solar panels, and it is a problem to ensure the safety of workers during the work.

  By the way, Patent Document 1 discloses an installation tool used to install a solar panel on a roof. This instrument includes a plate-like base portion, a ring-shaped protrusion erected on the surface of the base portion, and fixing means for fixing the base portion to the roof. An operator installs the solar panel in a state where one end of his / her safety belt is fixed to the protruding portion after attaching the base portion to a predetermined position of the roof.

JP 2007-63933 A

  However, Patent Document 1 does not disclose a procedure for installing the installation tool on the roof, and does not consider any safety when the installation tool is attached to the roof. . That is, as shown in FIG. 4 of the same document, when attaching an installation tool in the vicinity of the roof ridge, the worker hangs a ladder near the eaves near the lower end of the roof, goes up to the roof, and there is no lifeline Therefore, it is necessary to climb on the roof from the eaves part to the ridge part. At this time, the operator may accidentally fall from the roof. In addition, as shown in FIG. 4 of the same document, when installing the solar panel with the operator's lifeline attached to the protruding portion of the installation tool near the roof ridge, Since the weight is directly applied to the installation tool, the installation tool may fall off unexpectedly and the operator may fall from the roof. In addition, from this, when the installation work of the solar panel is performed by a plurality of workers, the lifeline of each worker cannot be collectively connected to one installation tool, and the installation tools for the number of workers. Needs to be mounted on the roof, and the installation work of the installation tool becomes complicated.

  Moreover, although the installation tool of Patent Document 1 is left on the roof as it is for subsequent maintenance after the solar panel installation work, the protruding portion is exposed at this time. Therefore, the appearance of the roof will be damaged.

  The present invention has been devised by paying attention to such problems, and its purpose is to provide a safety ensuring method considering the safety of work on the roof such as solar panel installation work and the safety used therefor. The object is to provide a countermeasure fixture.

  Another object of the present invention is to maintain a good appearance on the roof without exposing the fixed part even when the work on the roof is finished and fixed as it is. It is to provide a fixture for safety measures.

(1) In order to achieve the above object, the present invention is a safety ensuring method performed by an operator when working in a work area on a roof,
After fixing a safety measure fixture with a mounting part for attaching a master rope or a lifeline to a position near the eaves of the roof, connect the safety measure fixture and the worker with a lifeline, and in that state The safety measure fixture is fixed to a plurality of positions in the vicinity of the ridge portion of the roof, and the master rope is passed between the safety measure fixtures in the vicinity of the ridge portion.

(2) Further, the present invention is a safety ensuring method performed by an operator when working in a work area on a roof,
After fixing the safety measure attachment provided with the attachment part for attaching the master rope or the lifeline to the first position near the eaves portion of the roof, the safety measure attachment and the worker are connected to the first lifeline. In this state, the safety measure fixture is fixed to a second position in the vicinity of the roof ridge, and the safety measure fixture and the worker at the second position are connected to the second position. After connecting with the lifeline, the first lifeline is removed from the safety measure fixture or the operator at the first position, and moved from the second position to the vicinity of the ridge portion in the lateral direction while moving to a plurality of positions. The safety measure fixture is fixed, and the master rope is bridged between the safety measure fixtures located in the vicinity of the ridge.

(3) Here, the safety measure fixture is provided such that the attachment portion is removable from the main body side,
It is preferable to take a method of removing the attachment portion from the main body after the work in the work area.

(4) Moreover, the said fixture for safety measures is provided so that the said attachment part can be removed from a main body side,
After working in the work area, with the safety measure fixture in the second position and the operator connected by a second lifeline, while removing the master rope from each safety measure fixture The mounting part is removed from the mounting tool for safety measures in the vicinity of the ridge except for the second position, and the mounting tool for safety countermeasures at the first position and the worker are connected by a first lifeline. Therefore, it is preferable to take a method of removing the attachment portion from the safety measure fixture in the second position and then removing the attachment portion from the safety measure fixture in the first position. .

(5) Furthermore, the mounting tool for safety measures is provided so that a scaffolding plate support member capable of supporting the scaffolding plate can be attached,
After fixing the safety measure fixtures at a plurality of positions in the vicinity of the eaves part, the scaffold plate support members are attached to the respective safety measure fixtures, and the scaffold plates are supported by the respective scaffold plate support members. It is preferable to adopt the method.

(6) Moreover, the safety measure fixture according to the present invention includes a main body fixed to the roof surface, and an attachment that is detachably attached to the main body.
The said attachment has taken the structure of having the attaching part for attaching the master rope or lifeline used at the time of the work on a roof.

(7) The main body further includes a base fixed to the surface of the roof, and a support that supports the attachment.
The support body may be configured to be connected to the base so as to be movable, and to be capable of adjusting a fixed position with respect to the base.

  (8) Moreover, the said main body is attached to the board | plate material located under a roof tile, and takes the structure that it sets to the size which can be accommodated in the clearance gap formed between the said roof tile and the said board | plate material. It is preferable.

  According to the present invention, when working in the work area on the roof, the worker can work by connecting the lifeline to the master rope, and the weight of the worker is attached to the safety measure fixture fixed to the roof. Does not act directly, and it is possible to prevent the safety measure fixture from unexpectedly falling off the roof. In addition, in the process of sequentially fixing the safety measure fixtures from the eaves side to the ridge side, a lifeline is attached to the safety measure fixtures fixed earlier, and the following safety measure fixtures are used. Since the safety measure fixture is fixed to the roof, the risk of the operator falling from the roof when mounting the safety measure fixture on the roof can be greatly reduced. Securing of sex can be expected.

  In particular, according to the method (2), the lifeline when the worker moves between the first position and the second position, and when the worker moves near the ridge from the second position. The fulcrum position with the lifeline can be changed. For this reason, even if the worker falls while moving in the vicinity of the ridge, since the fulcrum of the lifeline at this time is the second position of the ridge, the fall distance of the worker around the fulcrum Can be kept to a minimum, and the effect of preventing the operator from falling from the roof can be enhanced.

  According to the methods (3) and (4), when the safety measure fixture is left attached to the roof for the next work on the roof, only the mounting portion that is conspicuous on the exterior of the building is used. It can be removed, and the appearance of the roof can be kept good. In addition, when using the safety measure attachment for the second and subsequent operations, it is only necessary to attach the attachment portion to the main body that is already fixed to the roof, thus eliminating the trouble of fixing the safety measure attachment to the roof. Is possible.

  According to the method (5), the scaffolding plate can be disposed in the vicinity of the eaves portion using the safety measure mounting tool, which is more useful for ensuring the safety of the roof work.

  According to the configurations of (7) and (8), when the safety measure fixture is left attached to the roof for the next work on the roof, the main body remaining after removing the attachment is the roof tile. It can be accommodated in a gap with the lower plate material, and when the roof work is not performed, the main body can be concealed with the roof tile, and the appearance of the roof can be kept in good condition.

(A) is a schematic plan view which shows the state by which the fixture for safety measures which concerns on this embodiment was attached to the roof, (B) is the schematic perspective view which expanded the part. The schematic perspective view which decomposed | disassembled a part of said fixture for safety measures. The schematic longitudinal cross-sectional view of the said fixture for safety measures. The schematic longitudinal cross-sectional view which shows the attachment state at the time of non-use of the said fixture for safety measures. The schematic longitudinal cross-sectional view which shows the state which attached the scaffold board support member to the said fixture for safety measures. The schematic exploded perspective view which abbreviate | omitted a part of the fixture for safety measures which concerns on a modification. The schematic longitudinal cross-sectional view which shows the attachment state at the time of non-use of the fixture for safety measures which concerns on the said modification.

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

  FIG. 1A is a schematic plan view showing a state in which a safety measure fixture applied to the safety ensuring method of the present invention is attached to a roof, and FIG. An enlarged schematic perspective view is shown. FIG. 2 is a schematic perspective view in which a part of the safety measure fixture is disassembled, and FIG. 3 is a schematic longitudinal sectional view of the safety measure fixture.

  As shown in FIG. 1, the safety measure fixture 10 is used as a safety measure for work on the tile roof R, and the roof tile T at a desired site is removed and exposed at that time. The plate B is attached to the surface of the plate B coated on the rafters (not shown) arranged at regular intervals. In addition, in FIG. 1 (A), in order to avoid the complication on drawing, it should be understood that the description of the roof tile T is omitted.

  As shown in FIGS. 2 and 3, the safety measure fixture 10 includes a main body 11 fixed to the surface of a plate material B constituting the roof R, and an attachment 12 detachably attached to the main body 11. It is configured with.

  The main body 11 includes a base 14 that is in contact with the surface of the plate material B and is fixed to the plate material B, and a support 15 that is movably connected to the base 14 and supports the attachment 12.

  The base 14 has a shape in which the central portion is raised by bending a substantially central portion in the short-side direction of a plate-like body having a substantially rectangular shape in plan view, and between the rafters (not shown) whose longitudinal ends are adjacent to each other. It is set to a length that can be bridged at an upper position. The base 14 includes a plate material contact portion 17 that is located on both sides in the short-side direction and contacts the plate material B, and a projecting portion 18 that is substantially central in the short-side direction and that is continuous with the plate material contact portion 17.

  The plate material contact portion 17 has a plurality of screw holes 20 formed at both ends in the longitudinal direction. A screw 21 is inserted into the screw hole 20, and the base 14 is fixed to the plate material B and the rafter (not shown) with the screw 21.

  A long hole 23 extending along the longitudinal direction of the base 14 is formed in the protruding portion 18. In addition, although it does not specifically limit, the long hole 23 is provided in two places which continue along the longitudinal direction of the base 14. FIG.

  The support 15 is composed of a long nut 25 erected with respect to the base 14 and positioning bolts 26 (see FIG. 3) for fixing the long nut 25 to the base 14.

  The long nut 25 is provided with a diameter larger than the width of the long hole 23, and is arranged so as to hide a part of the long hole 23 on the surface side of the base 14 (upper surface side in FIG. 2).

  The positioning bolt 26 has a head that can be accommodated in a recessed space formed by the plate material contact portion 17 and the protruding portion 18, and the screw shaft portion can pass through the long hole 23 and engage with the long nut 25. It has become. The positioning bolt 26 can fix the long nut 25 to a desired position of the base 14 by tightening from the back surface side of the protrusion 18. Here, when the positioning bolt 26 is loosened while the positioning bolt 26 is engaged with the long nut 25, the long nut 25 can be moved along the extending direction of the long hole 23, thereby the base 14. It is possible to adjust the position of the long nut 25 with respect to. As will be described later, this position adjustment is performed so as not to interfere with the roof tile T when the roof tile T once removed is attached to the original position while the main body 11 is fixed to the plate material B of the roof R. Is called. That is, as shown in FIG. 4, adjustment is made so that the long nut 25 is positioned in the gap below the curved portion T <b> 1 that bulges outward on one end side of the roof tile T. Accordingly, the height of the long nut 25 is set to be equal to or lower than the height that can be accommodated in the gap, taking into account the strength of safety measures at the time of use described later.

  As shown in FIGS. 2 and 3, the attachment 12 includes a bar screw 28 whose one end is detachably engageable with the long nut 25, and an eye nut detachably engaged with the other end of the bar screw 28. 29. A ring portion is formed on the eyenut 29, and the ring portion serves as an attachment portion 30 to which a master rope or a lifeline can be attached. In addition, as long as the said attachment 12 is a thing with the shape which has the attachment part 30, the thing of another structure can also be employ | adopted, for example, employ | adopt the eyebolt with which the said ring part and the screw part are united. You can also.

  In addition, as shown in FIGS. 1, 2, and 5, for the safety measure attachment 10 attached in the vicinity of the eaves portion of the roof R, a scaffold plate F disposed along the eaves portion is attached to the attachment 12. A scaffolding plate support member 32 for supporting is attached. Although this scaffold board support member 32 is not specifically limited, it is comprised by the L-shaped metal fitting, and the standing surface which stands up from the one end side of the said base surface 34 which is arrange | positioned facing the roof R side. It consists of a surface 35. A through hole 36 through which the bar screw 28 is passed is formed in the approximate center of the base surface 34.

  A fixing nut 38 is used to fix various members to the rod screw 28, that is, the long nut 25, the eye nut 29, and the scaffolding plate support member 32. When the various members are fixed, fastening with a so-called double nut is performed. State.

  Next, a method for ensuring the safety of an operator (not shown) using the safety measure fixture 10 when performing the work of installing a solar panel (not shown) on the tile roof R will be described.

  As shown in FIG. 1, a region surrounded by an alternate long and short dash line is a work region A for installation of the solar panel, and a safety measure fixture 10 is provided at a plurality of locations on the roof R outside the work region A. Is installed.

  First, the ladder H is hung on the eaves portion of the roof R, and the safety measure fixture 10 is fixed in the vicinity of the eaves portion around the ladder H in a state where the operator gets on the ladder H. The fixing work here is not particularly limited, but is performed at three locations near the eaves. Here, first, with respect to the safety measure fixture 10, in a state where the long nut 25 is loosely connected to the base 14 with the positioning bolt 26, the long nut 25 is made movable along the long hole 23, and The attachment 12 is removed. First, several roof tiles R are continuously removed, and the base 14 is fixed to the plate material B with screws 21 in a state where the plate material B is exposed. Under the present circumstances, the base 14 is fixed so that the longitudinal direction may be along the left-right direction of the roof R, and straddle the adjacent rafters (illustration omitted) located under the board | plate material B. FIG. At the time of fixing, the long nut 25 is positioned with respect to the base 14, the positioning bolt 26 is tightened at an appropriate position to fix the long nut 25 to the base 14, and then the base 14 is attached to the roof R side. As will be described later, the positioning here is based on the roof tile T that was first removed in a state where the attachment 12 was removed and only the main body 11 was fixed to the roof R after the solar panel installation work was completed. As shown in FIG. 4, the long nut 25 is adjusted to be positioned in a gap formed between the curved portion T <b> 1 that bulges outward (upper side) on one end side of the roof tile T and the plate material B when returned. The

  Next, the attachment 12 and the scaffolding plate support member 32 (see FIGS. 2 and 5) are respectively attached to the long nuts 25 on the base 14 attached to each eaves side position. That is, first, the rod screw 28 is attached to the long nut 25, the fixing nut 38 is inserted and tightened from the opposite side of the long nut 25, and the rod screw 28 is fixed to the long nut 25. Thereafter, together with another fixing nut 38, the bar screw 28 is passed through the through hole 36 of the scaffolding plate support member 32, and the upper and lower sides of the base surface 34 are tightened with the fixing nut 38, and the scaffolding plate support member 32 is fixed to the bar screw 28. To fix. At this time, as for the scaffold board support member 32, the standing surface 35 is located above the base surface 34, and the outer surface side of the standing surface 35 opposite to the base surface 34 is located on the ridge side. It is attached in the direction to do. Finally, a fixing nut 38 and an eye nut 29 are inserted in order from the upper end side of the bar screw 28, and then the nuts 29 and 38 are tightened to fix the eye nut 29 to the bar screw 28. And the scaffolding board F is spanned and arrange | positioned between the scaffolding board support members 32 each attached to three places near the eaves part. At this time, the scaffold board F is arrange | positioned on the outer side of the scaffold board support member 32 so that the scaffold board F may be supported by the outer surface of the standing surface 35, and the surface of the roof R. In this embodiment, in order to support the scaffold plate F in the vicinity of the eaves part, the safety measure fixture 10 is attached to the roof portion at three locations. However, the mounting pitch of the safety measure fixture 10 here and The number of attachments can be variously changed according to the length and number of the scaffold plates F.

  Next, the first lifeline that is the first lifeline attached to the worker is attached to the attachment part 30 of the safety measure attachment 10 that is fixed at the first position 41 that is the left eave part position in FIG. A lifeline (not shown) is connected, and the roof R is straightly climbed from the first position 41, and the safety measure fixture 10 is fixed to the second position 42 of the roof R in the vicinity of the ridge. The fixing work here is performed in the same procedure as the fixing procedure of the safety measure fixture 10 at the eaves position including the first position 41 described above, except that the scaffolding plate support member 32 is not fixed. Is called.

  Thereafter, a second lifeline (not shown) as a second lifeline attached to the operator is connected to the attachment portion 30 of the safety measure attachment 10 fixed at the second position 42, while the first Is removed from the operator side or the first position 41 side. Then, while moving in the lateral direction in the vicinity of the ridge from the second position 42, the safety measure fixture is installed at a plurality of positions in the vicinity of the ridge (the other two in the present embodiment) in the same procedure as the second position 42. 10 is fixed. Thereafter, the master rope W is spanned and fixed between the attachment portions 30 of the safety measure attachment 10 attached to each position in the vicinity of the ridge. Then, after connecting the lifeline of the worker to the master rope W, the installation work of the solar panel in the work area A is performed. When the installation work is performed by a plurality of workers, the worker climbs to the first position 41 with the ladder H, and attaches to the mounting portion 30 of the safety measure mounting fixture 10 fixed to the first position 41. After attaching the first lifeline, climb the roof to the vicinity of the ridge. Then, after attaching the second lifeline to the master rope W, the first lifeline is removed from the operator side or the first position 41 side, and the installation work is performed.

  After the installation work of the solar panel is completed, each safety measure in the vicinity of the ridge part is connected with the other end side of the second lifeline attached to the operator at one end side to the attachment portion 30 at the second position 42. The master rope W hung between the attachment fixtures 10 is removed. Then, the attachment 12 of each safety measure fixture 10 fixed to the right and center positions in FIG. 1 near the ridge is removed in the reverse procedure to that described above, and the safety measure fixture 10 is attached. Return the removed roof tile T to its original position. Then, the main body 11 is accommodated in the gap below the roof tile T, and the safety measure fixture 10 with the attachment 12 removed is covered with the roof tile T.

  And after connecting the said worker and the attachment part 30 of the 1st position 41 with the said 1st lifeline, the connection state of the said 2nd lifeline with respect to the said operator is cancelled | released, The other said ridge part vicinity In the same procedure as the removal of the attachment 12 at the position, only the attachment 12 is removed from the safety measure fixture 10 at the second position 41, and the roof tile T is returned to the original position while the main body 11 remains.

  Thereafter, the scaffold board F is removed, and the attachment 12 and the scaffold board support member 32 are removed from the safety measure fixture 10 fixed at each position in the vicinity of the eaves portion including the first position 41, and the same as in the case of the above-described removal. With the main body 11 left, the roof tile T is returned to the original position.

  Therefore, according to such an embodiment, when performing a solar panel installation work or the like, the safety measure fixture 10 or the master rope W can be easily attached to the roof R as a setting for safety measures during the work. In addition, it is effective in preventing the operator from falling from the roof R. Furthermore, the safety measure fixture 10 is left fixed to the roof R in consideration of performing the work in the work area A again during maintenance of the solar panel, but the attachment 12 is attached and detached. The main body 11 is accommodated in the space below the roof tile T with the attachment 12 removed. For this reason, when the roof tile T is returned to the original position, the processing and processing of the roof tile T for fixing the safety measure fixture 10 to the roof R, for example, drilling or notching the roof tile T. , Waterproofing is not necessary. In addition, the main body 11 fixed to the roof R is completely hidden by the roof tile T when the safety measure fixture 10 is not used, and the appearance of the roof R can be maintained in a good appearance.

  In addition, although the said embodiment demonstrated the attachment of the fixture 10 for safety measures at the time of installation of a solar panel, this invention can be applied similarly at the time of other high place work, such as roof construction and installation of a satellite antenna. .

  In addition, in the safety ensuring method, when the safety measure fixture 10 in the vicinity of the ridge is attached, the first lifeline fixed at the first position 41 is left attached to the operator, and the second lifeline is attached. You may perform without using a lifeline, or in the state which used the said 2nd lifeline together.

  Furthermore, when performing the above-described safety ensuring method, the safety measure fixture 10 does not necessarily have to be used, and any safety measure fixture having various structures can be applied as long as it has the attachment portion 30. it can.

  Further, the present invention is not limited to the tile roof R, and can be similarly applied to buildings including other roofs. For example, when applying this invention to a slate roof, as shown in FIG.6 and FIG.7, the fixture 50 for safety measures is used. The safety measure fixture 50 here is the same as the safety measure fixture 10 of the embodiment described above, except that the base 14 is a flat plate having a substantially rectangular shape in plan view, and without providing the positioning bolt 26. The difference is that the long nut 25 is fixed substantially at the center of the base 14 and a cover 52 is provided that can cover the long nut 25 when not in use. Other structures are substantially the same as the above-described safety measure fixture 10, and the same reference numerals are used for the same or equivalent components as the safety measure fixture 10, and the description thereof is omitted. 6 and 7, the attachment 12 and the scaffolding plate support member 32 constituting the safety measure fixture 50 are the same as those described above, and are not shown.

  The cover 52 is provided in the shape of a hollow pyramid that can accommodate the main body 11 on the inner side, and a through hole 54 for passing a bolt 53 that can be engaged with the long nut 25 is formed on the upper end side.

  Even when the safety measure fixture 50 is applied here, before and after the work in the work area A, substantially the same as described above, except that the roof tile T is not attached or detached with respect to the procedure described above. Safety measures are taken with the following procedure. In addition, when the safety measure fixture 50 is not used, the cover 11 is covered with the cover 52, the bolt 53 is passed through the through hole 54, and the bolt 53 is screwed into the long nut 25. The nut 25 is coupled to the nut 25 so as not to fall off.

  In addition, the configuration of each part of the safety measure fixtures 10 and 50 in the present invention is not limited to the illustrated configuration example, and various design changes can be made as long as the same effects are achieved.

DESCRIPTION OF SYMBOLS 10 Safety measures attachment 11 Main body 12 Attachment 14 Base 15 Support body 30 Attachment part 32 Scaffold board support member 41 1st position 42 2nd position 50 Safety measures attachment A Work area B Board material F Scaffold board R Roof T Roof tile W Master rope

Claims (8)

It is a safety ensuring method performed by an operator when working in a work area on a roof,
After fixing a safety measure fixture with a mounting part for attaching a master rope or a lifeline to a position near the eaves of the roof, connect the safety measure fixture and the worker with a lifeline, and in that state The safety measures fixture is fixed at a plurality of positions near the roof ridge, and the master rope is spanned between the safety measures fixtures near the ridge. How to ensure safety. It is a safety ensuring method performed by an operator when working in a work area on a roof,
After fixing the safety measure attachment provided with the attachment part for attaching the master rope or the lifeline to the first position near the eaves portion of the roof, the safety measure attachment and the worker are connected to the first lifeline. In this state, the safety measure fixture is fixed to a second position in the vicinity of the roof ridge, and the safety measure fixture and the worker at the second position are connected to the second position. After connecting with the lifeline, the first lifeline is removed from the safety measure fixture or the operator at the first position, and moved from the second position to the vicinity of the ridge portion in the lateral direction while moving to a plurality of positions. The safety securing method for roof work, wherein the safety measure fixture is fixed and a master rope is bridged between each safety measure fixture located near the ridge. The mounting tool for safety measures is provided so that the mounting portion can be removed from the main body side,
The method for ensuring safety for rooftop work according to claim 1 or 2, wherein the mounting portion is removed from the main body after work in the work area. The mounting tool for safety measures is provided so that the mounting portion can be removed from the main body side,
After working in the work area, with the safety measure fixture in the second position and the operator connected by a second lifeline, while removing the master rope from each safety measure fixture The mounting part is removed from the mounting tool for safety measures in the vicinity of the ridge except for the second position, and the mounting tool for safety countermeasures at the first position and the worker are connected by a first lifeline. 3. The mounting portion is removed from the safety measure fixture at the second position, and then the attachment portion is removed from the safety measure fixture at the first position. How to ensure safety for rooftop work as described. The safety measure fixture is provided so that a scaffold plate support member capable of supporting the scaffold plate can be attached,
After securing the safety measure fixtures at a plurality of positions in the vicinity of the eaves portion, attaching the scaffold plate support members to the respective safety measure fixtures, and supporting the scaffold plates with the respective scaffold plate support members. The safety ensuring method for the work on the roof according to any one of claims 1 to 4. A main body fixed to the roof surface, and an attachment that is detachably attached to the main body,
The attachment has a mounting portion for mounting a master rope or a lifeline used during work on the roof. The main body includes a base that is fixed to the surface of the roof, and a support that supports the attachment.
The safety support fixture according to claim 6, wherein the support is connected to the base so as to be movable, and is provided so that a fixed position with respect to the base can be adjusted.   The said main body is attached to the board | plate material located under a roof tile, and is set to the size which can be accommodated in the clearance gap formed between the said roof tile and the said board | plate material. 7. Safety measures fixture according to 7.

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