JP4001876B2 - Lifeline attachment device for roof work - Google Patents

Description

  The present invention relates to a lifeline attaching device for roof work that can safely perform work on an inclined roof.

  Since work on an inclined roof involves the danger of an operator falling, it is necessary to install a device in order to prevent the work from falling. Conventionally, as a device for preventing a fall, it has been generally performed to assemble a scaffold from the ground under the eaves. Further, in addition to the eaves scaffold, a scaffold may be provided on the roof surface to ensure safety (see, for example, Patent Document 1).

  In some cases, instead of such scaffolding, safety is secured by driving an anchor for attaching a lifeline into a roof ridge or hanging a lifeline on a rope stretched on the roof. (For example, refer to Patent Document 2).

JP 2002-89033 A JP 2002-327540 A

  However, when a scaffold is assembled from the ground, its installation requires enormous costs and labor, especially in the case of high-rise buildings. Moreover, since the scaffold is assembled, the construction period becomes extremely long. Also, when the scaffold is assembled from the ground, it can enter the building via the scaffold even if it is on a higher floor, so there is a problem in terms of crime prevention, as well as a scaffold when looking out from the window inside the building. Because it becomes visible, it will impair the comfort and comfort of the building. In addition, when a scaffold is provided on the roof, when the roof material such as a tile or a single is sown, the scaffold becomes in the way and the work cannot be performed, or the workability is remarkably reduced. On the other hand, a lifeline lowered from an anchor fixed to a building or a safety device using a rope stretched on a roof is low in cost, but safety is not sufficient. That is, since the rope and the lifeline become long, the worker becomes unstable and the workability becomes extremely poor. In addition, there is a possibility of falling over a long rope, so it is not safe.

  The present invention has been made in view of such a situation, and an object of the present invention is to provide a lifeline attachment device for roofing work that is extremely safe, can be easily installed at a low cost, and is easy to perform roofing work. And

In order to achieve the above object, in the present invention, an anchor member fixed substantially along a ridge portion of an inclined roof,
A plurality of beam bars connected to the anchor member and provided from the roof ridge to the eaves along the slope of the roof;
A plurality of connecting rods that bridge between adjacent beam bars;
A plurality of legs mounted on the roof top surface and supporting the beam bars;
Have
A lifeline attachment device for attaching a lifeline to the beam bar or connecting rod,
The leg is another leg and have a spacing mechanism that can separated from the individually roof top in a state placed on the top surface of the roof, and the Ryobo the longitudinal direction in the vicinity of its upper end by providing a plurality of bolt holes along, and an adjustable and to have roof work umbilical attachment device according to claim Rukoto the coupling position with the other member.

In such an apparatus, since there is no scaffold, installation cost can be significantly reduced. In addition, the beam bar provided from the roof ridge to the eaves is connected to the anchor member and is supported by the leg, so that it is fixed on the roof very stably. Further, since the adjacent beam bars are bridged by a connecting rod, a strong structure is formed by the beam rod and the connecting rod, and high safety is ensured. In addition, the operator can attach the lifeline to an arbitrary position of the beam bar or the connecting rod, so that the lifeline can be shortened and can also be grasped by a familiar beam bar or connection rod. Therefore, the worker can work stably and safety and workability are improved. Furthermore, since the leg body has a separation mechanism, when the leg body becomes an obstacle to the roof work, only the leg body that becomes the obstacle individually while maintaining the state where the beam bar is supported by the other leg body. It can be separated from the roof top surface.
In addition, the beam bar is provided with a plurality of bolt holes along the longitudinal direction in the vicinity of the upper end thereof, so that the connection position with the other member can be adjusted. These connection positions can be appropriately adjusted by selecting bolt holes. Furthermore, since the connection with the other member is made by a bolt and a nut, the connection becomes extremely strong.

In addition, the lifeline attachment device for other roof work according to the present invention, a plurality of beam bars provided from the roof ridge to the eaves along the slope of the roof,
A plurality of connecting rods that bridge between adjacent beam bars;
A plurality of legs mounted on the roof top surface and supporting the beam bars;
Have
A lifeline attachment device for attaching a lifeline to the beam bar or connecting rod,
The leg has have a spacing mechanism that can separated from the individually roof top in a state in which the other leg is placed on the top surface of the roof,
This device is provided on both sides of the roof inclined in two directions from the ridge, and the devices provided on both sides of the roof in the vicinity of the ridge are coupled to each other .
The beam bar is provided with a plurality of bolt holes along the longitudinal direction in the vicinity of the upper end portion thereof, so that the connection position with other members can be adjusted .

In this case, since the devices provided on both sides of the roof are coupled to each other, the devices can be reliably fixed on the roof without an anchor member due to the balance between the devices on both sides of the roof.
In this case, it is more preferable that the devices on both sides of the roof are symmetrical to each other with respect to the vertical plane passing through the ridge because the balance becomes perfect.

  Further, a fence body provided substantially parallel to the eaves of the roof is fixed to the beam bar, and an angle formed by the fence body and the beam bar can be changed, and the fence is changed according to the inclination angle of the roof. It is good also as a structure which can fix a body vertically. If it does in this way, since a fence body is fixed on the beam bar stably installed, a fence body will also be stably fixed and a worker's high safety is secured. Moreover, since the angle which a fence body and a beam bar comprise can be changed, it can respond to the roof which has various inclination angles. Furthermore, providing the fence body gives the worker a visual sense of security and prevents the operator from falling.

  Furthermore, it is good also as a structure which has the eaves edge suspension rod provided in the eaves vicinity and substantially parallel to the eaves edge, and the eaves edge curing rod which is suspended by this eaves edge suspension rod and receives the object which falls from the eaves edge of a roof. If it does in this way, since the eaves edge ginger receives the object which falls from an eaves edge, the fall of an object can be prevented. Since the eaves-end ginger can be installed simply by suspending it on the eaves-end suspension rod, the eaves-end ginger can be installed very easily, and the eaves-end ginger itself can be made extremely small and light. Moreover, since the eaves-end suspension rod is provided substantially parallel to the eaves end, it is easy to install the eaves-end cure cage along the eaves by suspending the eave-end cure cage on the suspension rod.

  In addition, a wife hanging rod provided substantially parallel to the wife in the vicinity of the wife of the roof, and a wife curing jar suspended from the wife hanging rod and receiving an object falling from the wife side of the roof, It is good also as a structure to have. In this way, the wife section curing jar receives the object falling from the wife side, so that the object can be prevented from falling. Since the Tsumabate Curb can be installed simply by suspending it on the Tegma suspension rod, the Tamabe Curb can be installed very easily, and the Tamabe Curb itself can be extremely small and light. Moreover, since the wife part hanging rod is provided substantially parallel to the wife part, it is easy to install the wife part curing cage along the wife part by suspending the wife part curing rod on the suspension bar. .

  Further, the beam bar is configured by connecting a plurality of beam bar units in a bar shape, and the distance between the adjacent beam bars in the direction parallel to the eaves is set to 2500 mm or less to constitute the apparatus. All members may have a length of 2500 mm or less. If it does in this way, since all the members which comprise the lifeline attachment apparatus for roof work are 2500 mm or less, all the members can be loaded in a general purpose elevator, and conveyance and handling of a member will become very easy. And a beam bar can be comprised with a short member of 2500 mm or less by comprising a beam bar with a plurality of beam bar units. Furthermore, since the distance between the adjacent beam bars in the direction parallel to the eaves is set to 2500 mm or less, the length of the connecting rod that bridges the adjacent beam bars can be set to 2500 mm or less. . In addition, since the distance between adjacent beam bars is extremely short, the distance between the worker and the beam bar is reduced, and safety is improved.

The separation mechanism of the leg body includes a shaft attachment mechanism that pivotally attaches the leg body to the beam bar so as to be rotatable in a direction below the roof, and a fixing unit that prevents the rotation. preferable.
In this case, when the leg is separated from the roof, it is only necessary to rotate the leg in the downward direction of the roof, so that the leg can be separated very easily and the workability is greatly improved. Further, since the leg is pivotally attached to the beam bar, the length of the leg is always constant, and the assembly accuracy of the apparatus is increased. And when it is not necessary to separate the legs, the rotation of the legs can be completely prevented by the fixing means, so that the stability of the apparatus is further enhanced.

It is preferable that the connecting rod can be expanded and contracted, and that both ends of the connecting rod are provided with fitting joint portions into which the beam rod can be fitted from above the beam rod.
In this case, since the connecting rod can be expanded and contracted, the interval between the adjacent beam rods bridged by the connecting rod can be changed within the extending range of the connecting rod. If it does so, the freedom degree of arrangement | positioning of a beam bar will increase, As a result, the position freedom degree of the leg body which supports a beam bar will also increase. Therefore, when there is a position where it is difficult to place the leg, such as when there is unevenness locally on the roof top surface, the leg can be arranged so as to avoid the position. Further, by contracting the connecting rod, the connecting rod is shortened and is easily transported. Furthermore, since the arrangement interval of the beam rods can be expanded by extending the connecting rods, the arrangement interval of the beam rods can be increased as necessary to reduce the number of beam rods and other members used in the device. Can do.

  It is preferable that a reinforcing member for supporting the beam rod is provided in the vicinity of the eaves of the roof or in the vicinity of the end of the roof, with the eaves end or the end of the roof sandwiched from above and below and fixed to the roof. In this case, the stability of the apparatus is further increased, and when the eaves-end curing pad and the wife part curing pad as described above are provided, the stability of the curing pad can be increased.

  According to the present invention, it is possible to provide a lifeline attachment device for roof work that is extremely safe, can be easily installed at low cost, and is easy to perform roof work.

  The present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a state in which a roof work lifeline attachment device according to a first embodiment of the present invention is installed on a roof. As shown in FIG. 1, a roof work lifeline attaching device is installed over almost the entire surface of the gable roof. This lifeline attachment device for roof work is connected to a plurality of anchor members 1 fixed substantially along the ridge portion m of the inclined gable roof, and the anchor member 1, from the roof ridge portion m to the eaves s, A plurality of beam bars 2 provided in a direction perpendicular to the ridge m along the slope of the roof and parallel to each other, a plurality of connecting bars 3 for bridging adjacent beam bars 2, and an upper surface of the roof And a plurality of legs 4 which are placed and support the beam bar 2. The beam bar 2 is made of a C-type channel material or a square pipe material, and the connecting bar 3 is made of an L-shaped angle material.

  As shown in FIG. 1, the beam bar 2 is installed in a direction perpendicular to the ridge m of the roof, while the connecting bar 3 that bridges the adjacent beam bars 2 is installed in a direction parallel to the ridge m. The beam bar 2 and the connecting bar 3 form a grid-like structure. And this structure is being fixed in the position above a roof upper surface by the some leg 4 which supports the beam bar 2. As shown in FIG. The operator secures safety by attaching a lifeline to the beam bar 2 or the connecting bar 3 close to the work position.

  Further, the roof work lifeline attaching apparatus is an apparatus having a similar configuration on each of two inclined surfaces sandwiching the ridge m of the gable roof. And the safety device provided in each of two inclined surfaces on both sides of the ridge part m is mutually connected in the ridge connection part 10 of the beam bar 2 located above the ridge part m. If it does in this way, since a weight balance (balance) can be taken between the apparatuses provided on the two inclined surfaces sandwiching the ridge m, the apparatus can be installed more stably. In this way, when the devices are provided on both sides of the roof inclined in two directions from the ridge m, and the devices provided on both sides of the roof in the vicinity of the ridge m are connected by the beam rod 2 or the like. Because of the balance, the apparatus is stabilized even without the anchor member 1. And when the apparatus provided over both surfaces of the roof is symmetrical with each other with respect to the vertical plane passing through the ridge m as in the present embodiment, the balance becomes perfect, which is more preferable.

  A fence body 5 fixed to the beam bar 2 is provided substantially in parallel with the eaves edge below the beam bar 2 and in the vicinity of the eaves s of the roof. The fence body 5 has a structure in which a plated wire mesh is stretched on a frame body, and is erected in a substantially vertical direction. Also, the eaves s is provided with an eaves curing ginger 6 that receives objects falling from the eaves. Further, a wife portion curing cage 7 for receiving an object falling from the roof wife side is provided in the vicinity of the end of the wife side of the roof, that is, near the keraba.

  FIG. 2 is a side view of the roof work lifeline mounting apparatus as viewed from the wife side of the roof. In FIG. 2, the illustration of the wife section curing cage 7 is omitted for the sake of clarity. The beam bar 2 is configured by connecting a plurality of beam bar units 2 a in a bar shape at the beam bar joint portion 11. The legs 4 are placed on the roof upper surface and are provided at equal intervals along the beam bar 2 to support the beam bar 2. One leg 4 is provided for each beam bar unit 2a.

  FIG. 3 is an enlarged cross-sectional view of the roof work lifeline mounting device in the vicinity of the ridge m. The anchor member 1 is, for example, a bolt having a diameter of about 16 mm, and is driven in the vicinity of the ridge m of the roof. In the upper part of the anchor member 1, the beam bar 2 and the anchor member 1 are coupled to each other by being tightened with a nut n via a wedge-shaped gradient washer 15. One anchor member 1 is connected to one beam rod 2.

  FIG. 4 is a plan view of the beam bar unit 2a constituting the beam bar 2, and FIG. 5 is an enlarged plan view of the beam bar joint portion 11 where the beam bar units 2a are connected to each other. FIG. 6 is a plan view of the connecting rod 3, and FIG. 7 is an enlarged view of the vicinity of a connecting portion between the beam rod 2 and the connecting rod 3. The beam bar unit 2a shown in FIG. 4A is a standard beam bar unit 2a, and a plate-like joint member 12 is provided at one end of the beam bar unit 2a. 4 (b) shows the eaves-dedicated beam bar unit 2a1 used in the position closest to the eaves of the beam bar unit 2a. FIG. 4 (c) shows the ridge-dedicated beam bar unit 2a3. Will be described later.

  The joint member 12 is a substantially rectangular plate-like member, half of which is fixed to one end of the beam bar unit 2a by welding or bolts, and the other half is extended from the end of the beam bar unit 2a in the longitudinal direction. Projecting along. As shown in FIG. 4A, the projecting portion has two joint holes 13, and the other end of the main body of the beam bar unit 2a has a body joint hole 14 corresponding to the joint hole 13. Are provided. When connecting the beam bar units 2a, the joint hole 13 provided in the joint member 12 at one end of one beam bar unit 2a and the main body provided at the other end of the other beam bar unit 2a. After overlapping the joint hole 14, both are connected by bolts and nuts. The joint member 12 may be a single plate as a whole, or may have a hinge structure that bends at the center in the longitudinal direction of the member.

  As shown in FIG. 6, the connecting rod 3 is made of an L-shaped angle member, and a bolt-shaped protrusion 3 a having a bolt-shaped thread is provided in the vicinity of both ends of one outer surface thereof. On the other hand, the beam bar unit 2a is provided with a first joint receiving hole 2b for inserting the bolt-shaped protrusion 3a at a position near the joint member 12 (see FIGS. 4 and 7). Further, as shown in FIGS. 4 and 7, in this beam bar unit 2a, an L-shaped angle piece 2c, which is a short L-shaped angle material, is welded at a position adjacent to the first joint receiving hole 2b. The L-shaped angle piece 2c is provided with a second joint receiving hole 2d for inserting the bolt-shaped protrusion 3a. Further, the two first joint receiving holes 2b and the second joint receiving hole 2d, which are adjacent to the two joint receiving holes, are juxtaposed in a direction perpendicular to the longitudinal direction of the beam bar unit 2a and located on substantially the same plane. (See FIG. 7).

  The structure in which the adjacent beam bars 2 are bridged by the connecting bar 3 is as follows. That is, as shown in FIG. 7, one of the two bolt-like projections 3a of the connecting rod 3 is inserted into the first joint receiving hole 2b of the beam rod 2, and A bolt-like protrusion 3a on the other side of another connecting rod 3 is inserted into a second connecting hole 2d provided on the same beam bar 2 and adjacent to the first connecting hole 2b. The two bolt-shaped protrusions 3a provided near both ends of the single connecting rod 3 are inserted into the first connecting receiving hole 2b of one beam rod 2 on one side, and the other side is adjacent to another adjacent one. The beam rod 2 is inserted into the second joint receiving hole 2d. Since the bridge by the connecting rod 3 is continuous in the direction parallel to the ridge m, in the roof work lifeline attaching device according to the present embodiment, as shown in FIG. The beam bar 2 and the connecting bar 3 constitute a grid-like structure.

  The bolt-shaped protrusion 3a has a bolt-shaped thread, and a nut (not shown) is screwed to the bolt-shaped protrusion 3a. The beam bar 2 and the connecting bar 3 are screwed by these bolt-shaped protrusions 3a and nuts (not shown). Screwing in this way is preferable because the connecting rod 3 can be securely fixed to the beam rod 2.

  Thus, the beam bar 2 provided from the upper part to the lower part of the roof is connected to the anchor member 1 at the upper part, and is further supported by one leg 4 per one beam bar unit 2a. So it is very stable on the roof. Further, since the adjacent beam rods 2 are bridged by the connecting rod 3, a strong structure is formed by the beam rod 2 and the connecting rod 3, and high safety is ensured.

  FIG. 8 is a side view of the vicinity of the leg 4, and FIG. 9 is a side view of the vicinity of the lower portion of the leg 4. Regarding the leg 4, the lower part of FIG. 7 describes the upper part of the leg 4, that is, the connecting part between the leg 4 and the beam bar 2. The beam bar 2 is provided with a leg mounting hole 2e at one position per beam bar unit 2a (see FIG. 4). On the other hand, the main body 4c (see FIGS. 7 and 8) of the leg 4 is made of a square pipe material, and a leg plate 43 is welded to the upper portion of the main body 4c (see FIG. 7). A part of the leg plate 43 protrudes upward from the main body portion 4c of the leg body 4, and on the upper part of two opposing surfaces of the four outer peripheral flat surfaces of the main body portion 4c of the square pipe material, It welds, making the surface contact with the said plane. As a result, the two welded leg plates 43 are opposed to each other through a gap at a portion protruding from the main body 4c of the leg 4. The leg 4 is fixed to the beam bar 2 by sandwiching the C-shaped channel material of the beam bar 2 in this gap and fastening with the bolt b (see FIG. 7).

  In order to insert the bolt b, the leg plate 43 of the leg 4 is provided with a beam rod mounting hole 4a, which is a loose hole which is long in the vertical direction (longitudinal direction of the leg 4). (See FIG. 8). The bolt b passes through the beam bar mounting hole 4 a of the leg plate 43 and the leg mounting hole 2 e of the beam bar 2.

  A leg stabilizing member 4 b is provided at the lowermost part of the leg body 4. As shown in FIGS. 8 and 9, the leg stabilizing member 4 b extends between the two trapezoidal plates 40 that gradually widen from the upper side to the lower side and the bottoms of the two trapezoidal plates 40. It consists of an existing bottom plate 41 and a rubber sheet 42 attached to the outer surface of the bottom plate 41. The rubber sheet 42 is in surface contact with the upper surface of the roof. The two trapezoidal plates 40 are provided on both sides of the main body portion 4c made of a square pipe (both sides facing the ridge in parallel) so as to face each other with the square pipe interposed therebetween, and the bolt b passes therethrough. Thus, the leg stabilizing member 4 b is fixed to the leg body 4. Since the body 4c of the leg 4 and the leg stabilizing member 4b can be rotated relative to the bolt b, the mounting angle of the leg stabilizing member 4b with respect to the body 4c of the leg 4 is variable. . Therefore, it is possible to adjust the angle of the rubber sheet 42, which is the ground contact surface of the leg stabilizing member 4b, along the roof top surface. By adjusting the angle, the bottom surface of the leg stabilizing member 4b (that is, the rubber sheet 42) is brought into surface contact with the roof top surface, and thus the leg body 4 is stably placed on the roof top surface.

  As described above, the beam rod mounting hole 4a of the leg 4 is a loose hole. That is, the width of the beam rod mounting hole 4a is increased in the vertical direction (longitudinal direction of the leg 4), and the fixing position can be arbitrarily adjusted in the vertical direction. Therefore, it is possible to move the leg 4 upward so that the position of the bolt b is below the beam bar mounting hole 4a, thereby separating the leg 4 from the roof top surface. Even when one leg 4 is moved upward and floated, since the other leg 4 supports the beam bar 2, the stability of the entire apparatus is not affected.

  Thus, the leg 4 has a separation mechanism that can be individually separated from the roof top surface while the other leg bodies 4 are placed on the roof top surface. Therefore, when the leg 4 becomes an obstacle in the roof work, the leg 4 that becomes the obstacle may be separated from the roof upper surface, so that the workability in the roof work becomes extremely high. For example, when roofing is to be done, if the leg 4 cannot be separated from the roof top surface, the roofing material cannot be sowed at that position, and the work is practically impossible. However, a roofing material can be spread over the entire surface of the roof by this separation mechanism. Therefore, this safety device is very suitably used for roofing work.

  FIG. 10 is a front view of the fence body 5, and FIG. 11 is an enlarged front view showing a connecting portion (inside the circle in FIG. 10) between the fence body 5 and the beam bar 2. The fence body 5 is an aggregate of the fence body units 5a. One fence body unit 5a is provided between the adjacent beam bars 2 and the fence body units 5a are arranged in parallel with the eaves s so that the fence body 5 Is formed.

  The fence body unit 5 a includes a frame body 51 made of an L-shaped angle material and a plated wire mesh 52 provided in the frame body 51. As described above, the fence unit 5a has a structure similar to a so-called curing metal net, but differs from a normal curing metal mesh in that the fence body leg portions 53 are provided at both ends of the lower side of the frame 51. The fence body leg portion 53 has an integral structure with the frame body 51, and the fence body unit 5 a is fixed to the beam bar 2 by connecting the fence body leg portion 53 and the beam bar 2. . As shown in FIG. 10, at two locations near both ends of the lower side of the frame body 51, fence body leg portions 53 extending downward from the outer bottom surface of the lower side are projected, and as shown in FIG. The fence body leg 53 is fixed by a bolt and a C-type channel material which is the beam rod 2 through a fastening washer 16 having a U-shaped cross section and a bolt hole. Two fastening washers 16 are provided so as to sandwich the fence leg 53 with respect to one fence leg 53. Since the beam bar 2 is a C-shaped channel material, the central portion is missing on one surface of the long side of the rectangular cross section, but this missing portion can be compensated and fixed with the bolt b. Therefore, an auxiliary plate 17 is interposed (see FIG. 11).

  FIG. 12 is a side view of the vicinity of the fence body leg portion 53 of the fence body unit 5a. The fence body leg portion 53 is formed of a square pipe. Of the four surfaces constituting the square pipe, the slit body is cut in the form of an elongated slit on two surfaces facing in a direction parallel to the surface of the fence body 5 (the surface formed by the plated wire mesh 52). It has a notch 54 (see FIG. 12). The notch 54 is provided from the lower end of the fence body leg portion 53 to a predetermined position along the longitudinal direction thereof. As shown in FIG. 11, the above-described fastening washer 16 is put on the outside of the notch 54, and these members and the C-shaped channel material of the beam bar 2 are tightened with the bolts b and nuts n passing therethrough. Thus, the fence unit 5 a is fixed to the beam bar 2.

  In addition, before installing the fence unit 5a, the fastening washer 16, the bolt b, and the nut n are attached to the beam bar 2 in advance. That is, as shown in FIG. 4B, the eaves-dedicated beam bar unit 2a1 used exclusively for the eaves of the beam bar unit 2a includes a fastening washer 16, a bolt b, and a nut n in the vicinity of the eaves side. The fence body attachment clamp 20 to be performed is attached in advance. Then, when installing the fence unit 5a, the bolt b is inserted through the notch 54 so that the fence unit 5a is inserted from above the fence attachment clamp 20, and then fixed with the bolt b and the nut n. To do. Thus, by providing the notch 54 in the fence body leg part 53 of the fence body unit 5a, the attachment work of the fence body unit 5a on a roof is simplified, and attachment of the fence body unit 5a becomes very easy. .

  Since the fence unit 5a and the beam bar 2 are fixed by tightening the bolt b, the angle between the fence unit 5a and the beam bar 2 can be adjusted around the axis around the bolt b. Thus, the fence body 5 can be fixed vertically according to the inclination angle of the roof. Further, during this angle adjustment, the position of the bolt b with respect to the rail leg 53 may move up and down somewhat. Smoothly done.

  In addition, although the fence unit 5a is arranged in parallel along the eaves s, as shown in FIG. 10 and FIG. 13, the adjacent fence units 5a are fixed on the upper surface of the frame 51. They are linked by gold 27. FIG. 13 is a plan view of the vicinity of the clasp 27 as viewed from above. The stopper plate 27 is a substantially rectangular plate material, and has a rotation hole 27b near one end in the longitudinal direction, and a predetermined position in the direction parallel to the short side from the long side of the rectangle near the other end in the longitudinal direction. It has a notch-shaped bolt lateral insertion portion 27a extending up to. The stopper plate 27 is rotatably mounted by a bolt b inserted through the rotation hole 27b. Then, a clasp 27 pivotally attached to one end side of one fence body unit 5a is rotated around the bolt b, and a bolt b attached to the other end side of another adjacent fence body unit 5a. Is inserted into the bolt lateral insertion portion 27a, and then each bolt b is tightened and fixed. Thus, by providing the stopper 27 for connecting the fence units 5a to each other, the fixation of the fence units 5a is further strengthened and the safety is further enhanced.

  As described above, since the fence body 5 is fixed on the beam bar 2 that is stably installed, the fence body 5 is also stably fixed, and high safety of the worker is ensured. Is done. Moreover, since the angle which the fence body 5 and the beam bar 2 comprise can be changed, the fence body 5 can be vertically installed and fixed corresponding to the roof which has various inclination angles. Furthermore, providing the fence body 5 gives the worker a visual sense of security and prevents the operator from falling. In addition, the operator can grasp the upper edge portion of the frame body 51 of the fence body 5 as a handrail, and safety is further enhanced.

  FIG. 14 is a front view of the eaves edge curing pad 6 installed in the vicinity of the eaves s, and FIG. 15 is an enlarged cross-sectional view in the vicinity of the eaves edge s6 where the eaves curing pad 6 is installed. As shown in FIGS. 14 and 15, the eaves-end curing cage 6 includes a metal frame 61, a curing metal mesh 62 stretched in the metal frame 61, and extends upward from the upper part of the metal frame 61 and has a U shape at the upper end. And a hanging hook 63 that is curved in a letter shape. As shown in FIG. 14, a total of three hanging hooks 63 are provided for one eaves-end curing cage 6, and the installation positions are the both end portions and the central portion of the eaves-end curing cage 6. The eaves edge ridge 6 is arranged in parallel with the eaves s so that the entire eave edge s is covered with the eaves edge ridge 6 (see FIG. 1).

  As shown in FIG. 15, the metal frame 61 includes an outer frame 61a having a hanging hook 63 fixed to the upper portion and extending downward, a bottom frame 61b extending in a substantially horizontal direction from the lowermost end of the outer frame 61a, and a bottom frame. The inner frame 61c extends upward from the innermost end of 61b, and a curing wire net 62 is provided in these frames. Thus, by setting it as the eaves edge curing cage 6 of the cross-section 3 surface structure, the object falling from the eaves s can be received reliably.

  As shown in FIG. 15, a gap k is provided between the eaves-end curing cage 6 and the eaves cage 18 provided in the eaves s. In order to ensure such a gap k, the dimensions of each part of the eaves-end curing cage 6 and the position of the eaves-end suspension bar 19 are adjusted. Since the gap k is provided, it is possible to perform the work of replacing the eaves bowl 18 and the work of installing the eaves bowl 18 with the eaves-end curing cage 6 installed, and install or replace the eaves bowl 18. An object falling from the eaves s can be reliably received in the work.

  The eaves-end curing rod 6 is suspended by an eave-end suspension rod 19 made of a round pipe that bridges the lower portions of the beam rods 2 along the eaves s (see FIG. 15). The eaves hanging rods 19 are installed so as to bridge between the adjacent beam rods 2, and a plurality of eaves hanging rods 19 are vertically arranged on the same axis along the eaves s. As shown in FIG. 4B, an eaves-end suspension bar holder 21 having a U-shaped cross-section is welded and fixed to the upper surface of the eave end side end of the eaves-end dedicated beam bar unit 2a1. Since the U-shaped cross-section of the eaves-hanging rod receiver 21 opens in the direction opposite to the eaves, that is, in the direction of the ridge (see FIG. 15), the eaves-hanging rod receiver 21 is inclined on the roof (that is, the inclination of the beam bar 2) The opening is inclined upward along the line. The outer diameter of the eaves-end suspension rod 19 is substantially the same as the opening width of the eaves-end suspension rod receiver 21. Therefore, by inserting the eaves suspension rod 19 from the opening side of the eaves suspension rod receiver 21, the eaves suspension rod 19 is securely fixed by the eaves suspension rod receiver 21.

  FIG. 16A is a front view showing a state where the eaves hanging rods 19 are juxtaposed in a direction parallel to the eaves s. As shown in the figure, the eaves-end suspension bar 19 is provided with flange-shaped non-slip rods 19a that prevent the eaves-end suspension bar 19 from slipping in the axial direction near both ends thereof. By providing the non-slip bar 19a at a position slightly closer to the center in the axial direction than both ends of the eaves hanging rod 19, a rod receiving insertion portion 19b is secured in a range from the non-slip bar 19a to both ends of the eaves hanging bar 19. ing. The axial length of the rod receiving insertion portion 19b is approximately half the length of the short side of the rectangular section of the C-shaped channel member of the eaves-end dedicated beam rod unit 2a1. Therefore, as shown in FIG. 16 (a), two bar receiving inserts 19b of adjacent separate eaves hanging rods 19 are inserted into one eaves hanging rod receiver 21 (indicated by a broken line in FIG. 16 (a)). Has been. Further, the axial position of the eaves hanging rod 19 is positioned by the anti-slip rod 19a. In addition, as shown in FIG.16 (b), the non-slip hook 19a is a rectangular plate-shaped member.

  By setting it as the above structures, installation of the eaves hanging rod 19 becomes very easy, and the eaves hanging rod 19 can be fixed to the beam bar 2 reliably. That is, in order to install the eaves hanging rod 19, it is only necessary to insert the rod receiving insertion portion 19 b into the eaves hanging rod receiver 21, so that the installation work is extremely simple. Moreover, the eaves end suspension bar 19 is not detached from the eaves end suspension bar receiver 21 by the anti-skid rod 19 a which is an axial slip prevention mechanism provided in the eave end suspension bar receiver 21. Moreover, since the eaves hanging rod 19 is installed on the beam rod 2 that is stably installed on the roof, the eaves hanging rod 19 itself is also installed stably. As a result, the eaves-end curing cage 6 suspended from the eaves-end suspension rod 19 is also stably installed.

  An eaves-end curing pad 6 is suspended from the eaves-end suspension bar 19. That is, as shown in FIG. 15, the eaves-end curing rod 6 is suspended from the eaves-end hanging rod 19 by hanging the hanging hook 63 of the eaves-end curing rod 6 on the eaves-end hanging rod 19. The hanging hook 63 is a band-shaped metal plate material, and the radius of curvature of the curved portion in contact with the eaves-end suspension bar 19 is substantially equal to the outer diameter of the eaves-end suspension bar 19. Moreover, the hanging hook 63 is not simply a bent metal rod or wire, but is a strip-shaped plate member having a predetermined width, and is formed at the eaves at the recess formed by the inner peripheral surface of the curved portion of the hanging hook 63. The hanging rod 19 is in contact. Therefore, the hanging hook 63 is suspended from the eaves hanging rod 19 with little play and rattling. Further, the length of the folded-back portion 63a extending from the curved portion to the end of the hanging hook 63 is sufficiently longer (about twice or more) than the diameter of the eaves-end hanging rod 19. Therefore, the eaves-end curing cage 6 does not come off the eaves-end suspension rod 19 even if it receives some vibrations or impacts.

  Further, since the eaves hanging rod 19 is provided substantially in parallel with the eaves s, the eaves erecting cage 6 can be formed only by hanging a plurality of hanging hooks 63 provided on the eaves erecting cage 6 on the eaves erecting rod 19. It will be installed along. Moreover, the eaves-end suspension rod 19 extends along the eaves-end s, and the suspension position of the eaves-end curing cage 6 (the installation position of the suspension hook 63) on the eaves-end suspension rod 19 is not particularly limited. Therefore, the eaves-end curing cage 6 has a very high degree of freedom in the hanging position. Therefore, when the eaves-end curing rod 6 is suspended from the eaves-end suspension rod 19, it is not necessary to accurately adjust the relative positional relationship between the eaves-end suspension rod 19 and the eaves-end curing rod 6. In addition, since the position of the hanging hook 63 on the eaves hanging rod 19 is not particularly limited, the degree of freedom in setting the installation interval and the number of installed hanging hooks 63 is also increased. Thus, by providing the eaves-end suspension rod 19 substantially parallel to the eaves s, the eaves-end curing cage 6 can be installed very easily.

  As described above, the eaves-end curing cage 6 can be installed only by being suspended from the eaves-end suspension rod 19, so that the installation thereof is extremely easy. Moreover, the eaves-end curing cage 6 itself can be made extremely small and lightweight. Therefore, handling and conveyance of the eaves-end curing pad 6 are extremely easy. In addition, since the eaves-end suspension bar 19 is installed on the beam bar 2 that is stably fixed, the eaves-end suspension bar 19 and the eaves-end curing rod 6 suspended on the suspension bar 19 are stably installed, And there is no fear of falling.

  Furthermore, in this embodiment, the wife part curing cage 7 which receives the object which falls from the wife side of a roof is provided. The structure of the wife part curing cage 7 and the structure for fixing the wife part curing cage 7 are similar to that of the eaves edge curing cage 6. FIG. 17 is a front view of the wife section curing jar 7 installed in the vicinity of the wife section t, and FIG. 18 is a cross-sectional view of the vicinity of the wife section t in which the wife section curing bowl 7 is installed.

  Since the structure of the Tsumabyo candy 7 itself is the same as that of the eaves-edge candy 6 described above, description thereof is omitted. However, as shown in FIG. 17, unlike the eaves-end curing cage 6, the shape of the Tsumago metal frame 71 is not a rectangle but a parallelogram, and is suitable for installation along the roof t-section of the roof. It is said that.

  As shown in FIG. 18, the wife section curing cage 7 is suspended by a wife section rod 22 provided in parallel with the wife section t on the beam bar 2 located on the most wife side of the roof. The beam-side projection 23 protruding from the side surface of the wife to the wife side is welded to the beam bar 2 positioned closest to the wife side. That is, among the beam bar units 2a constituting the beam bar 2, the beam bar unit 2a located closest to the wife side is a wife beam beam unit 2a2 dedicated to the wife portion to which the wife side protrusion 23 is welded. The wife side protrusion 23 is an L-shaped angle member, and on one surface thereof, there is provided a wife hanging rod insertion hole 24 that is a long loose hole in the protruding direction of the wife side protrusion 23. The wife part hanging rod 22 is installed by inserting the wife part hanging rod 22 into the hanging rod insertion hole 24. The wife part curing rod 7 is suspended from the wife part hanging rod 22. Since the wife part hanging rod insertion hole 24 is a loose hole, the position of the wife part curing cage 7 can be adjusted in accordance with the shape of the wife part of the roof.

  FIG. 19 is an enlarged view of a connecting portion where separate wife hanging rods 22 are connected. As shown in FIG. 19, a joint pipe 25 having an inner diameter substantially the same as the outer diameter of the wife suspension bar 22 is welded and fixed to one end of the wife suspension bar 22. By inserting the other end of the end suspension rod 22, a plurality of end suspension rods 22 are connected. A plurality of end suspension rods 22 connected in this way are provided in parallel with the end t of the roof. In addition, although illustration is abbreviate | omitted, the end part hanging rod 22 has the flange-shaped anti-skid rod like the above-mentioned eaves-end hanging rod 19, and prevents the side slip. This anti-skid rod is provided at a position where it comes into contact with the end portion of the connecting rod 3 on the side of the wife, and prevents the end portion hanging rod 22 from slipping in the axial direction.

  According to the configuration as described above, since the wife part curing rod 7 can be installed simply by suspending it from the wife part hanging rod 22, the wife part curing rod 7 can be installed very easily, and the wife part curing rod 7 itself can be installed. The size and weight can be extremely reduced. Moreover, since the wife part hanging rod 22 is installed in the beam bar fixed stably, this wife part hanging rod 22 and the wife part curing rod 7 suspended by the said hanging rod 22 are installed stably. There is no fear of falling.

  Further, since the end portion hanging rod 22 is provided substantially parallel to the end portion t, the same advantage as that of the eaves end hanging rod 19 described above is obtained. That is, only by suspending the wife part curing rod 7 on the wife part hanging rod 22, the wife part curing rod 7 is installed along the wife part t. Moreover, the wife part hanging rod 22 is extended along the wife part t, and the hanging position of the wife part curing rod 7 on this wife part hanging rod 22 is not specifically limited. Therefore, the wife part curing cage 7 has a very high degree of freedom in the hanging position. Therefore, when the wife part curing rod 7 is suspended from the wife part hanging rod 22, it is not necessary to accurately adjust the relative positional relationship between the wife part hanging rod 22 and the wife part curing rod 7. Thus, the wife part curing rod 7 can be installed very easily by providing the wife part hanging rod 22 substantially parallel to the wife part t.

  As shown in FIG. 4C, FIG. 2 and FIG. 3, the ridge part exclusive beam bar unit 2a3 which constitutes the upper end portion of the beam bar 2 and is located on the uppermost side has a plurality of bolts along its longitudinal direction. A hole h is provided. As shown in FIG. 3, in this embodiment, the beam rod 2 provided on one surface of the gable roof and the beam rod 2 provided on the other surface of the gable roof They are connected by connecting bolts 26. As described above, the beam rods 2 provided on both surfaces inclined in two directions from the ridge portion are coupled to each other so that they are balanced and the fixing of the apparatus is more stable as described above. The beam bar unit 2a3 has a plurality of bolt holes h along its longitudinal direction, and the connecting position by the ridge portion connecting bolt 26 can be adjusted by the plurality of bolt holes h. Position adjustment is facilitated by setting the distance ht (see FIG. 4C) between a plurality of adjacent bolt holes h to about 10 cm or less. If it does in this way, it will become unnecessary to adjust the length of ridge part beam bar unit 2a3 corresponding to the size of a roof. In addition, since the bolt is inserted through the bolt hole h and connected, the connection can be made extremely firmly and reliably. Therefore, the fixation of the beam rod 2 is further strengthened, and as a result, the entire roof work lifeline attachment device is fixed extremely stably. In the present embodiment, the plurality of bolt holes h are used for connecting the ridge part dedicated beam bar units 2 a 3, but may be used for connecting to the anchor member 1.

  The lifeline attaching device for roof work according to the present embodiment is assembled in a size that can cover almost the entire surface of the roof as a whole device, but all members constituting the device have a length of 2500 mm or less. Furthermore, it is set to 2100 mm or less. That is, the length Lr (see FIG. 4) of the beam bar unit 2a constituting the beam bar 2 is 1500 mm to 2090 mm, the length Lt (see FIG. 6) of the connecting bar 3 is 1990 mm, and the length of the fence 5 The side length Ls (see FIG. 10) is 1980 mm. Furthermore, the length Ln (see FIG. 14) in the longitudinal direction of the eaves-end curing pad 6 is 1930 mm, and the length Lb (see FIG. 16 (a)) of the eaves-end suspension rod 19 is 1990 mm. Further, the longitudinal length Ly (see FIG. 17) of the wife part curing rod 7 is 2000 mm, and the length (not shown) of the wife part hanging rod 22 is 2050 mm (including the splicing pipe 25). Other members are also 2100 mm or less.

  Here, the internal height of the general-purpose elevator is about 2500 mm, and the internal width and depth of the elevator are smaller than 2500 mm. Therefore, when the length of all the members constituting the apparatus is 2500 mm or less, all the members can be loaded into a general-purpose elevator, and it becomes extremely easy to transport the members to the roof. Furthermore, it is preferable that it is 2100 mm or less as in the present embodiment, because loading into the elevator becomes even smoother and handling on the roof becomes easier.

  Incidentally, the length Lt of the connecting rod 3 can be set to 2500 mm or less, and further to 2100 mm or less, because the distance Pr between the adjacent beam rods 2 in the direction parallel to the eaves (FIG. 7). Reference) is set to 2500 mm or less, and further to 2100 mm or less. That is, since the installation interval Pr of the beam rods 2 is set to 2500 mm or less, and further to 2100 mm or less, the length of the connecting rod 3 that bridges the adjacent beam rods 2 can be shortened. And as a result of bridge | crosslinking between the beam bars 2 with the connecting rod 3, it is set as the lifeline attachment apparatus for roof work of the grid grid | lattice form as shown in FIG.

  As described above, in this embodiment, the distance Pr between the adjacent beam bars 2 in the direction parallel to the eaves is set to 2500 mm or less, and further to 2100 mm or less. The length Lt of the connecting rod 3 could be 2500 mm or less, and further 2100 mm or less. The interval Pt (see FIG. 2) in the direction parallel to the end t between the adjacent connecting rods 3 was also set to 2500 mm or less, and further to 2100 mm or less. As a result, the roof grid lifeline attaching device shown in FIG. 1 has a rectangular structure constituted by two adjacent and parallel beam bars 2 and two adjacent and parallel connecting bars 3. The one side of this rectangular unit is 2500 mm or less, and further 2100 mm or less. Therefore, the worker will have a safety device close at any point on the roof. Accordingly, the length of the lifeline becomes very short, and the posture of the worker is stabilized as compared with the case where the lifeline is long, and the possibility of being caught by the lifeline is reduced, so that workability and safety are improved. Further, even when the worker loses his / her posture during the work, the work can be immediately grasped by the beam bar 2 or the connecting bar 3 existing in the vicinity, so the work safety is extremely high.

  In the present invention, the material constituting each member is not particularly limited. However, it is preferable to use a general-purpose material used as a building material because it is advantageous in terms of cost. Moreover, it is preferable to use a material that considers weight reduction while considering strength and rigidity required for each member. For example, as the beam bar unit 2a constituting the beam bar 2 that requires relatively high strength and rigidity, a general-purpose C-type channel material, a square pipe, or the like can be used. For example, the cross-sectional dimension is 100 mm × 50 mm × A lip groove steel having a thickness of about 20 mm and a thickness of about 2.3 mm can be used. In particular, the eaves-end dedicated beam bar unit 2a1 is provided with the fence body 5 and the eaves-end curing cage 6, and therefore preferably has higher rigidity than the other beam bar units 2a. For example, the cross-sectional dimensions are the same 100 mm × 50 mm × 20 mm. However, it is possible to use steel having a thickness of about 3.2 mm. As the connecting rod 3, for example, a general-purpose L-shaped angle material can be used. For example, a cross-sectional dimension of about 50 mm × 50 mm and a thickness of about 5 mm can be used.

  On the other hand, since the eaves-end curing rod 6 and the wife portion curing rod 7 do not require as much strength and rigidity as the beam rod 2 and the connecting rod 3, materials that emphasize weight reduction can be used. For example, it is preferable to use aluminum or an aluminum alloy for the metal frame 61 of the eaves-end curing cage 6 and the wife frame metal frame 71 of the Tamabe curing cage 7, for example, an aluminum alloy square pipe having a cross-sectional dimension of about 20 mm × 20 mm. Can be used. Further, a stainless steel plate having a thickness of about 2 mm and a width of about 20 mm can be used for the hanging hook 63. In addition, a bolt having a diameter of about 16 mm can be used as the anchor member 1 for supporting the beam rod 2, and a square pipe having a cross-sectional dimension of about 50 mm × 50 mm and a thickness of about 2.3 mm can be used as the main body portion 4 c of the leg 4. Can be used.

  The separation mechanism of the leg 4 is not limited to the configuration as in the above embodiment. For example, the leg 4 may be foldable with a hinge or the like. In this case, it is preferable to further provide a safety mechanism for preventing unnecessary folding. Moreover, when making the leg 4 foldable, it is preferable to make the direction folded between the adjacent leg bodies 4 alternate. Here, the adjacent leg bodies 4 may be the leg bodies 4 that support the same beam rod 2 and are adjacent in the vertical direction of the roof, or the leg bodies 4 that are adjacent in the horizontal direction of the roof. Thus, by making the direction folded between the adjacent leg bodies 4 alternate, it is possible to prevent all the leg bodies 4 from falling in one direction, thereby increasing safety. Such a foldable leg 4 is preferable in that the work of separating the legs 4 is relatively easy, but the stability of the legs 4 and the support of the beam bar 2 by the legs 4 are certain. Considering the performance and the manufacturing cost, it is preferable that the leg 4 is not a folding structure but a structure having a loose hole as described above.

  In the above-described embodiment, as shown in FIG. 8, the beam 4 mounting hole 4a of the leg 4 is configured as a loose hole so that the leg 4 can be separated from the upper surface of the roof. Alternatively, the leg stabilizing member 4b can be attached to the leg body by making the bolt hole h provided in the trapezoidal plate 40 and / or the main body portion 4c of the leg body 4 into a loose hole for attaching the leg stabilizing member 4b. It is good also as a structure which can be moved up and down with respect to 4 main-body parts 4c. In this way, the leg 4 can be separated from the roof top surface only by the vertical movement of the leg stabilizing member 4b, so that workability is improved. Further, when the folding mechanism described above is employed, the folding work is smoothly performed by floating the leg stabilizing member 4b.

  With regard to the separation mechanism of the legs 4, the gap distance between the roof upper surface and the spaced legs is preferably 4 cm or more, and more preferably 5 cm or more. If such a gap can be secured, a roof material such as a single can be easily spread.

  The gap distance between the beam bar 2 and the roof upper surface is not particularly limited, but is preferably 100 mm or more, more preferably 150 mm or more, and particularly preferably 200 mm or more. This is because if the gap distance is too small, the beam bar 2 or the connecting bar 3 may become an obstacle in roofing work or the like. On the other hand, if this gap distance is too large, the leg 4 becomes long and the device tends to become unstable. Therefore, it is preferably 500 mm or less, more preferably 400 mm or less, and particularly preferably 300 mm or less.

  The present invention is not limited to the gable roof as in the above-described embodiment, but is a single-flow roof, a saw roof, a crossover roof, an M-shaped roof, a folded back roof, a square roof, a side roof, a main roof, a roller roof, a half It can be applied to all types of sloped roofs such as gable roofs, to windbreak roofs, overpass roofs. Here, for example, in the case of a single-flow roof, as shown in FIG. 20, an anchor member 1 having a bolt hole h is fixed to a vertical wall surface extending vertically downward from a ridge m of the building, and this bolt hole h By inserting and fastening the bolt b into the bolt hole h of the ridge part dedicated beam bar unit 2a3, the beam member unit 2a can be connected to the anchor member 1. Further, in the case of the roof of the tower building, for example, a member obtained by bundling the two beam bars 2 is fixed along the section of the tower tower of the group tower roof, and each of the two beam bars 2 is It is good also as a structure connected with the beam bar 2, the connecting bar 3, etc. which are installed on each inclined surface.

  When a plurality of unit members are used in the roof work lifeline attaching device of the present invention, basically, the same unit member is used as a unit. However, if adjustment is necessary depending on the size of the roof, a separate adjustment unit member can be used. For example, in the case where the length of the eaves s of the building is not an integral multiple of the longitudinal length Ln (see FIG. 14) of the eaves curing gill 6, the adjustment eaves whose longitudinal length is shorter than Ln A curing cage can be provided separately. This point is the same for other members such as the Tsumabate Curb 7.

  In the above-described embodiment, the fence body 5 is configured to include the frame body 51 and the plated wire mesh 52, but is not limited to this configuration. For example, the portion of the plated wire mesh 52 may be a lattice or the like, or the plated wire mesh 52 alone may be omitted. Further, the height h5 (see FIG. 10) of the fence body 5 is not particularly limited, but is preferably 500 mm or more, and more preferably 700 mm or more in order to ensure the above-described visual effect and safety effect. More preferably, 900 mm or more is particularly preferable. If the height h5 is too large, the fence body 5 becomes large and is difficult to handle and transport, and is preferably 1500 mm or less, and more preferably 1200 mm or less.

  As shown in FIG. 15, it is preferable that the eaves-end curing cage 6 has a size that can have a gap k between the eaves cage 18. Here, the width 18w of the eaves bowl 18 is about 180 mm even for a relatively large eaves bowl 18. Similarly, the height 18h of the eaves bowl 18 is about 180 mm. Considering this, the height 6h of the suspended side surface of the eaves-end curing pad 6 is preferably about 500 mm to 900 mm, and more preferably 600 mm to 800 mm. The depth 6w of the eaves-end curing cage 6 is preferably 300 mm to 800 mm, more preferably 400 mm to 700 mm, and particularly preferably 400 mm to 600 mm. If these values are too large, the eaves-end curing cage 6 becomes too large, which is inconvenient in transportation. If these values are small, the gap k may not be secured sufficiently, and it may be difficult to attach or replace the eaves rod 18. In this case, it is preferable that the length L2 of the eaves-dedicated beam bar unit 2a1 protruding outward from the eaves s is about 200 mm to 500 mm because the gap k can be easily secured. The width of the gap k is preferably 50 mm or more, and more preferably 100 mm or more because it is easy to work. When the width of the gap k is too large, the eaves-end curing pad 6 becomes too large. Therefore, the width of the gap k is preferably 300 mm or less, and more preferably 200 mm or less.

  In addition, it is preferable that the fence body 5 is fixed to the beam bar 2 as in the above-described embodiment, but not only when the fence body 5 is directly attached to the beam bar 2 as shown in FIG. Another member fixed to the beam bar 2 may be interposed between the beam bar 2 and the fence body 5. For example, even when the connecting rod 3 is screwed to the beam rod 2 by the bolt-shaped protrusion 3a and a nut screwed to the connecting rod 3, and the fence 5 is fixed to the connecting rod 3, the fence Since 5 is fixed to the beam bar 2, the fence body 5 can be stably installed, which is preferable.

  Moreover, it is preferable that the eaves tip hanging rod 19 and the wife portion hanging rod 22 for hanging the eaves tip curing rod 6 and the wife portion curing rod 7 are installed on the beam rod 2 as in the above embodiment. Since the beam bar 2 is connected to the anchor member 1 and supported by the legs 4 and is stably installed, if the eaves hanging rod 19 and the end portion hanging rod 22 are installed on the beam rod 2, the eaves hanging rod 19 is installed. This is because the wife hanging rod 22 can be installed stably.

  The connection between the beam bar 2 and the anchor member 1 is not limited to the case where the beam bar 2 and the anchor member 1 are directly connected as in the above-described embodiment (see FIG. 3). Good. For example, the anchor member 1 may be connected to the beam rod 2 and the connecting rod 3 fixed with bolts. If one anchor member 1 is provided for each beam bar 2 as in the embodiment, the number of anchor members 1 can be minimized and the damage to the building can be suppressed while the beam bar 2 is firmly fixed. This is preferable. Further, as described above, when the apparatus is provided on both surfaces of the roof sandwiching the ridge m and the anchor member 1 is not provided, it is preferable in that the building is not damaged by the anchor member 1.

  FIG. 21 to FIG. 26 show a lifeline attaching device for roof work according to a second embodiment of the present invention. Since the basic configuration of the apparatus and the first embodiment shown in FIGS. 1 to 19 are the same, the main differences from the first embodiment will be described.

  In the second embodiment, the separation mechanism for separating the leg 4 from the roof top surface is different from the first embodiment described above. FIG. 21 is a side view of the vicinity of the leg 4, but the leg 4 in the second embodiment has two rectangular side plates 80 facing each other while sandwiching the beam rod 2 from the left and right directions (in FIG. 21). Of these, only one side plate 80 (shown on the front side of the drawing) is shown), and two side plates 80 extending between the long sides under the roof between the two side plates 80 facing each other. An upper connecting plate 82 that extends between the lower upper connecting plate 81 (shown in section in FIG. 21) and the roof upper long sides between the two opposing side plates 80 and connects the two side plates 80. (Shown in cross section in FIG. 21). On the other hand, the two side plates 80 are provided with an upper through hole 83 and a lower through hole 84 which are two holes arranged in parallel in the substantially longitudinal direction. On the other hand, the beam bar 2 is also provided with through holes at positions corresponding to the through holes 83 and 84. When the legs 4 are erected, the through holes 83 and 84 are respectively formed of two side plates 80 and A through hole penetrating the beam rod 2 interposed therebetween is formed. The leg 4 is attached to the beam bar 2 by a shaft member (not shown) inserted into one of the two through holes 83 and 84 (here, the lower through hole 84). It is pivotally mounted so that it can rotate. Therefore, the leg 4 rotates around the hole axis of the lower through hole 84.

  The distance between the hole axis of the lower through-hole 84 serving as the rotation axis and the roof upper surface y increases as it goes down the roof, and conversely decreases as it goes up the roof. Therefore, the leg 4 cannot be easily rotated in the upward direction of the roof because the roof is an obstacle, but can be easily rotated in the downward direction of the roof indicated by an arrow in FIG. Therefore, when the roof work is performed, the leg 4 can be easily separated from the roof upper surface y by simply pushing the leg 4 from the upper side of the roof to the lower side of the roof, and the work such as spreading the roofing material can be smoothly advanced. .

Further, when the legs 4 are not separated, a shaft (such as a folding pin described later) that penetrates the upper through hole 83 and the beam bar 2 is inserted with the legs 4 standing, and the legs 4 are rotated. To prevent movement. By doing so, the stability of the apparatus is increased.
Here, comparing the lower connecting plate 81 and the upper connecting plate 82 shown in cross section in the leg 4 of FIG. 21, the upper connecting plate 82 extends from below the side plate 80 to a position close to the beam bar 2. On the other hand, the lower connecting plate 81 is provided only at a part near the lower side of the side plate 80. Therefore, there is an opening 85 between the opposing side plates 80 above the lower connecting plate 81, and when the leg 4 rotates downward in the roof, the beam rod 2 is placed in the opening 85. The leg 4 is allowed to rotate in the direction below the roof.
On the other hand, there is no opening such as the opening 85 on the upper side of the roof of the leg 4, and the upper edge of the upper connecting plate 82 comes into contact with the beam bar 2 when the leg 4 attempts to rotate upward on the roof. This rotation is prevented. As described above, when the restricting means for restricting the rotation of the leg 4 only in the direction below the roof is provided, the leg 4 may fall in the direction above the roof due to the influence of gravity or the like acting in the direction below the roof. Even if a situation occurs, the leg 4 is prevented from rotating in the upward direction of the roof, so that the safety and stability of the device are further enhanced.
The roof downward direction is a direction from the ridge m to the eaves s, and the roof upper direction is a direction from the eaves s to the ridge m. The left-right direction is a direction parallel to the roof upper surface y and perpendicular to the roof vertical direction.

FIG. 22 shows a connecting rod 86 according to the second embodiment.
The connecting rod 86 can be expanded and contracted. That is, the connecting rod 86 has a structure in which a narrow-angle pipe 88, which is a square pipe that is slightly thinner than the thick-angle pipe 87, is inserted into the hollow interior of the large-angle pipe 87, which is a relatively thick square pipe. The small-angle pipe 88 can be expanded and contracted by being inserted and removed while moving relative to the large-angle pipe 87. Further, a fixing screw 89 is provided for preventing the relative movement between the large-angle pipe 87 and the narrow-angle pipe 88 and fixing the connecting rod 86 with a certain length.
Further, at both ends of the connecting rod 86, fitting joint portions 90 that can fit the beam rod 2 from above the beam rod 2 are provided.

  FIG. 23 is an enlarged cross-sectional view of the fitting joint portion 90 and the folding pin 91 inserted therein. The fitting joint 90 has a substantially U-shape that is opened downward, and a gap distance 90L thereof is substantially equal to the width (width in the left-right direction) of the beam bar 2. Therefore, the fitting joint part 90 can be fitted from above the beam bar 2. In this way, the bolt-shaped protrusion 3a of the connecting rod 3 and the L-shaped angle piece 2c of the beam rod 2 described above are not required, and the member is simplified, and the connection between the beam rod 2 and the connecting rod 3 is more stable. Furthermore, workability is greatly enhanced. After such fitting, the folding pin 91 is passed through a through hole 90b (see FIG. 21) provided in a lower portion of the fitting joint portion 90 so that the beam bar 2 does not come off the fitting joint portion 90. Further, the beam bar 2 is provided with a protrusion 2f to prevent the displacement of the fitting joint portion 90 (see FIG. 21). In FIG. 21, the description of the folding pin 91 is omitted.

  As shown in FIG. 23, the folding pin 91 includes a straight bar-shaped main portion 91a and a bent portion 91b pivotally attached to the main portion 91a. By rotating the main portion 91a and the bent portion 91b relative to each other and orienting the main portion 91a and the bent portion 91b on substantially the same axis, the entire bent pin 91 can be formed into a substantially straight bar shape. In this state, it passes through the through hole 90b. The length in the longitudinal direction of the main portion 91a is longer than the length required for penetration (that is, the gap distance 90L described above). Furthermore, the rotation center axis of the folding part 91b is not located at the longitudinal center position of the folding part 91b, but is a position unevenly distributed in the longitudinal direction. Therefore, when the main part 91a is in a substantially horizontal state, the bent part 91b hangs down in the vertical direction by the action of gravity and is bent. Therefore, the fold portion 91b is bent only by inserting the fold pin 91 and leaving it, and the fold pin 91 is prevented from coming off. The folding pin 91 is connected to the fitting joint 90 main body by a chain 92, so that the folding pin 91 is prevented from being dissipated.

  As described above, since the connecting rod 86 can be expanded and contracted, the interval between the adjacent beam rods 2 can be changed in the expansion / contraction range of the connecting rod 86. If it does so, the freedom degree of the position of the beam bar 2 will increase, As a result, the position freedom degree of the leg 4 which supports the beam bar 2 will also increase. Therefore, when there is a position where it is difficult to arrange the leg 4, such as when there is unevenness locally on the roof upper surface y, the leg 4 can be arranged so as to avoid the position.

Further, by extending and contracting the connecting rod 86, the connecting rod 86 is shortened and is easy to carry. Further, even if the length in the longitudinal direction of the connecting rod 86 (the length when contracted) is set to the above-mentioned preferable length (2500 mm or less, or 2100 mm or less), the arrangement interval between the beam rods 2 is extended by extending the connecting rod 86 in use. Can be made wider than the preferred length.
Furthermore, the arrangement | positioning space | interval of the beam rod 2 can be expanded by extending the connecting rod 86, and the number of use of the beam rod 2 and each member accompanying it in an apparatus can also be reduced suitably as needed.

  24 and 25 are views of the anchor member 93 according to the present embodiment, FIG. 24 is a side view of the roof ridge m viewed from the ridge line extending direction, and FIG. 25 is a perspective view thereof. The anchor member 93 includes four leg portions 93a, 93b, 93c, and 93d that are erected in a substantially vertical direction, and a connecting portion 94 that appropriately connects the leg portions 93a to 93d. The anchor member 93 is provided so as to straddle the ridge part m, and two leg parts 93a and 93b among the four leg parts 93a to 93d are provided in the same roof plane, and the other two leg parts are provided. 93c and 93d are provided in another roof plane across the ridge m. All the leg portions 93 a, 93 b, 93 c, 93 d are fixed to the roof by cut anchors 96.

  The anchor member 93 further extends in a direction substantially parallel to the ridge line of the ridge part m, and has two leg parts (that is, a leg part 93a, a leg part 93b, and a leg part 93c) standing on the same roof plane. And a leg 93d) are connected to each other and a slide bar 95 to which a beam bar holding body 97 described later is attached is provided. Each of the slide bars 95 is provided with a beam bar holding body 97 that can slide on the slide bar 95 and hold the beam bar 2 using the slide bar 95 as a rail. A plurality of beam bar holders 97 can be provided on one slide bar 95 as required. In FIG. 25, the description of the beam rod holder 97 is omitted.

As shown in FIG. 24, the beam rod holding body 97 includes a slide portion 97a through which the slide rod 95 is inserted, and a holding portion 97b in which the beam rod 2 indicated by the phantom line is inserted and held.
The slide part 97a is a square pipe whose axis is oriented in the direction along the slide bar 95, while the holding part 97b is oriented in the direction substantially along the beam bar 2 and can be inserted through the beam bar 2. A square pipe having a thickness. By the slide portion 97a, the beam rod holder 97 slides using the slide rod 95 as a rail. By this slide, the position of the beam bar holder 97 can be made to correspond to the position of the beam bar 2. The position of the beam rod holding body 97 can be fixed by tightening the slide prevention bolt bs.
On the other hand, the beam rod 2 is inserted into the holding portion 97b, and the beam rod holder 97 holds the beam rod 2 by tightening the holding bolt bh.

  In such a configuration, the anchor member 93 is erected with four legs, so that it can be installed very stably. Since the beam rod 2 is held by the anchor member 93, the entire lifeline attaching device for roof work is stabilized by the anchor member 93. Moreover, since the anchor member 93 is installed symmetrically with respect to the ridge portion m so as to straddle the ridge portion m, the stability thereof is further increased. Moreover, it can also be utilized as a material stand by further installing a horizontal plate on the anchor member 93.

FIG. 26 is a side view of the vicinity of the eaves s. The eaves s is provided with a fastening jack 98 as a reinforcing member that supports the beam bar 2 while being fixed to the roof with the eaves s sandwiched from above and below.
The fastening jack 98 is attached to an upper shaft body 98a in which a screw hole 98b passes through a rod body extending in the vertical direction, a screw rod 98n screwed into the screw hole 98b, and an upper end portion of the screw rod 98n. A handle 98h and an upper clamping portion 98d that is attached to the lower end of the screw rod 98n and sandwiches the eaves s from the upper side of the roof. Further, the fastening jack 98 includes a substantially U-shaped detour portion 98c extending from the lower portion of the upper shaft body 98a to the lower side of the eaves s so as to wrap around the eaves s of the roof, and an end portion of the detour portion 98c. And a lower clamping portion 98e that is positioned substantially on the extension line of the axis of the screw hole 98b and sandwiches the eaves s from the lower side of the eaves s.

The fastening jack 98 and the beam bar 2 are connected to each other by a bolt or the like (not shown) in the upper shaft body 98a. Further, the connecting portion 98f extending upward from the detour portion 98c and the beam rod 2 are connected by a bolt or the like (not shown).
By turning the handle 98h so that the facing distance between the upper clamping portion 98d and the lower clamping portion 98e is close, the eaves s can be clamped and the fastening jack 98 can be fixed to the roof. And since this clamping jack 98 and the beam bar 2 are connected, the beam bar 2 will be more stably installed with respect to a roof. In addition, when the eaves-end curing cage 6 or the fence body 5 described above is provided at the eaves s, the beam bar 2 is stabilized in the vicinity of the eaves s by the fastening jack 98, and therefore the fence body fixed to the beam bar 2 near the eaves s. 5 and eaves curing ginger 6 are stable. Further, it is preferable to provide a fastening jack having a similar structure in the vicinity of the wife t, since the beam bar 2 is stably supported and the wife curing cage 7 is stabilized.
In addition, as shown in FIG. 26, in this 2nd embodiment, the fence body 99 which integrated the fence body 5 and the eaves edge curing cage 6 which were separate bodies in the first embodiment is provided, and a member is provided. We are trying to reduce the number of points. The fixing method of the curing fence / railway body 99 is such that the eaves-hanging rod support 21 whose inner peripheral surface has a rectangular cross section has an outer peripheral cross-sectional shape that is substantially the same as the rectangular shape and is integrated with the curing fence / railway fence body 99. The method of fitting the eaves-end suspension rod 19 to be joined is adopted. If it does in this way, rotation around the axis of the eaves-end suspension rod 19 will be prevented, and the posture of the curing rod and fence 99 will be stabilized.

  The roof work lifeline attachment device of the present invention does not require a scaffold, so the installation cost is extremely low, the installation period is short, and the installation can be performed very simply. Many high-rise buildings and high-rise condominiums also have inclined roofs. However, in such a high-rise building, if a scaffold is assembled from the ground under the eaves, the installation cost becomes enormous and the installation period is extremely long. In this invention, since such a scaffold is unnecessary, installation cost can be reduced significantly.

It is a perspective view of the lifeline attaching device for roof work concerning one embodiment of the present invention. It is the side view which looked at the lifeline attachment apparatus for roof work which concerns on one Embodiment of this invention from the wife side. It is an enlarged view in the ridge part of FIG. It is a top view of the beam bar unit used for one Embodiment of this invention. It is an enlarged plan view of the beam bar joint part which beam bar units connect. It is a top view of the connecting rod used for one Embodiment of this invention. It is an enlarged view of the connection part vicinity of a beam bar and a connecting rod. It is a side view near a leg. It is a side view near the lower part of a leg. It is a front view of a fence body part. It is an enlarged front view which shows the connection part (inside the circle of FIG. 10) with a fence body and a beam bar. It is an enlarged side view of the fence body leg vicinity in a fence body. It is an enlarged plan view near the clasp that connects the fence bodies. FIG. It is an expanded sectional view of the eaves neighborhood where the eaves curing ginger was installed It is a side view which shows the enlarged view and eaves-stopping flange vicinity of an eaves-hanging rod. It is a front view of Tsumabbe Yoyoen. It is an expanded sectional view near the wife part where the wife part curing pad was installed. It is an enlarged view of the joint pipe vicinity where separate wife part hanging rods connect. It is a schematic side view of the ridge part vicinity in other embodiment of this invention. It is a side view of the leg vicinity in 2nd embodiment of this invention. It is a top view of the connecting rod in the second embodiment of the present invention. It is an enlarged view of the fitting joint part in the connecting rod of FIG. It is a side view of the anchor member in 2nd embodiment of this invention. It is a perspective view of the anchor member of FIG. It is a side view of the eaves vicinity vicinity in 2nd embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Anchor member 2 Beam bar 2a Beam bar unit 3 Connecting bar 4 Leg body 5 Fence body 6 House pre-curtain ridge 7 Tama part nurture ridge 19 House end suspension bar 22 Wife part suspension rod m ridge part s eave part t Wife part Pr Adjacent beam Spacing between bars in the direction parallel to the eaves 90 Insertion joint 98 Tightening jack (reinforcing member)

Claims (9)

An anchor member fixed substantially along the ridge of the inclined roof;
A plurality of beam bars connected to the anchor member and provided from the roof ridge to the eaves along the slope of the roof;
A plurality of connecting rods that bridge between adjacent beam bars;
A plurality of legs mounted on the roof top surface and supporting the beam bars;
Have
A lifeline attachment device for attaching a lifeline to the beam bar or connecting rod,
The leg is another leg and have a spacing mechanism that can separated from the individually roof top in a state placed on the top surface of the roof, and the Ryobo the longitudinal direction in the vicinity of its upper end more by providing the bolt holes, adjustable and to have roof work umbilical attachment device according to claim Rukoto the coupling position with the other member along. A plurality of beam bars provided from the roof ridge to the eaves along the roof slope,
A plurality of connecting rods that bridge between adjacent beam bars;
A plurality of legs mounted on the roof top surface and supporting the beam bars;
Have
A lifeline attachment device for attaching a lifeline to the beam bar or connecting rod,
The leg has have a spacing mechanism that can separated from the individually roof top in a state in which the other leg is placed on the top surface of the roof,
This device is provided on both sides of the roof inclined in two directions from the ridge, and the devices provided on both sides of the roof in the vicinity of the ridge are coupled to each other .
The lifeline mounting apparatus for roof work , wherein the beam bar is provided with a plurality of bolt holes along the longitudinal direction in the vicinity of the upper end portion thereof, so that the connection position with other members can be adjusted .   The beam bar is fixed with a fence body provided substantially parallel to the eaves of the roof, and the angle between the fence body and the beam bar can be changed, and the fence body can be changed according to the inclination angle of the roof. 3. The roof work lifeline attaching device according to claim 1, wherein the roof work lifeline attaching device can be fixed vertically. An eaves hanging rod provided substantially parallel to the eaves near the eaves
The lifeline attachment device for roof work according to any one of claims 1 to 3, further comprising an eaves-end curing cage that receives an object that is suspended from the eaves-end suspension rod and falls from the eaves end of the roof. A wife hanging rod provided substantially parallel to the wife in the vicinity of the wife of the roof;
A roof work lifeline attaching device according to any one of claims 1 to 4, further comprising: a wife part curing rod that is suspended by the wife part hanging rod and receives an object falling from the wife side of the roof. . The beam bar is configured by connecting a plurality of beam bar units in a bar shape,
The spacing between adjacent beam bars in the direction parallel to the eaves is 2500 mm or less,
The lifeline attaching device for roof work according to any one of claims 1 to 5 , wherein all members constituting the device have a length of 2500 mm or less. The spacing mechanism of the leg is
A shaft attachment mechanism for attaching the leg to the beam bar so as to be pivotable in a direction below the roof;
The roof work lifeline attaching device according to any one of claims 1 to 6 , further comprising a fixing means for preventing the rotation. The connecting rod is extendable and retractable, and both ends of the connecting rod are provided with fitting joint portions into which the beam rod can be fitted from above the beam rod. Item 8. The roof work lifeline attaching device according to any one of Items 1 to 7 . The reinforcing member that supports the beam bar while being fixed to the roof by sandwiching the eaves or the wife from above and below in the vicinity of the eaves of the roof or the vicinity of the wife of the roof is provided. The lifeline attaching apparatus for roof work in any one of 8 .

Images