JP4491361B2 - Fall protection device for roof construction - Google Patents

Description

  The present invention relates to a fall protection device for roof construction that protects an operator from falling down from the roof in the event of roof construction of a building, in particular, when a roof is newly constructed or repaired.

  Generally, the roof of a building such as a house is damaged by tiles or slate, the paint of the slate is peeled off, or the timber supporting the tile or slate is damaged. Therefore, roof surfaces such as repair and replacement of tiles and slate and repainting are required each time.

  In this case, conventionally, a construction scaffold is generally assembled around the building, and the roof surface is repaired using this scaffold.

  However, this scaffold may be difficult to assemble and dismantle and may cost more than roof construction.

  Also, this scaffold is for workers who walk or climb up and down, and does not have a function to prevent falling of tiles and slate fragments during work, so for those who are under the building Very dangerous.

  For this reason, a temporary shelf for roof repair work as shown in Patent Document 1 has been developed.

The temporary shelf for roof renovation work is a fixed base fixed on the roof surface, a base body along the roof surface while being locked to the fixed base via a locking portion, and a standing base at the lower part of the base body. The shelf portion and a receiving portion provided below the shelf portion are each provided with a net-like sheet material attached to the shelf portion and the receiving portion.
JP 2002-213055 A (drawings, abstract)

  The temporary shelves for roof renovation work shown in the above-mentioned patent document 1 are broken down below the roof surface because fragments such as tiles and slate during construction, and construction tools are repaired with the sheet material at the receiving part even if they fall from the roof surface. Therefore, even if an operator slides on the roof surface, it can be supported by a shelf or a sheet material provided on the shelf.

  However, in this temporary shelf, when the operator slides down along the roof surface, even if the operator supports the operator with the sheet material that is spread on the shelf, the sheet material is tensioned, so the buffer at the time of collision The effect is small and may hurt or rebound and cause injury.

  Furthermore, at this time, there is no guarantee that the sheet material provided on the shelf will always support the worker, and depending on the sliding angle and the posture of the worker, it may collide directly with the rigid shelf as a support. In this case, the cushion may not work and the operator may be injured.

  In addition, a sheet material is also provided in the receiving portion, but this is intended to collect fragments and the like generated during construction and cannot support the worker.

  Furthermore, when the temporary shelf is installed on the roof surface, the base body is fixed to the roof surface with an anchor, and the locking portion is hooked on the base body. In addition, since the overall structure is complicated, the weight is heavy and it is difficult to change the work position to another work position. Furthermore, the workability, the assemblability, and the economy are inferior.

  Therefore, an object of the present invention is to be able to support an operator who slips and falls from the roof surface, and can prevent shock and injury by buffering the shock at that time, and the structure is simple. The object of the present invention is to provide a roof protection apparatus for roof construction that is easy to carry, assemble, dismantle, and refill, and is excellent in workability, assembly, and economy.

To achieve the above object, the plurality first means of the present invention is to be laid at both ends at a given interval are coupled via a stop on the end eaves of the roof on the roof surface of a building , A guide that is slidably inserted into each master rope and stops at an arbitrary position, a frame body composed of vertical and cross members coupled to each guide, and a net coupled between the frame bodies It is characterized by comprising.

In this case, it is preferable that the length of the master rope is adjusted with a tensioner and the tension is adjusted.

Moreover, it is preferable to provide the rope couple | bonded through the bracket between the said guide and a vertical member, and the other rope couple | bonded between the said cross member similarly.

  According to the invention of each claim, since the net is always provided, even if the company slips and falls along the roof surface, the company can be supported by the net without fail. A shock-absorbing effect can be exerted to prevent the operator from being shocked, and the body can be prevented from being injured or injured.

Similarly, the invention of each claim has a simple structure, so that it is easy to carry, assemble, replace and disassemble, and is excellent in workability, assembleability and economy.
Similarly, the invention of each claim makes it possible to slide the guide according to the work position and position the net according to the position of the guide.
According to the second aspect of the present invention, the length and tension can be adjusted by loosening or tensioning the master rope with a tensioning device, and a buffering effect corresponding to the tension can be obtained.
According to the invention of claim 3, the impact when the operator slides down and is supported by the net acts on the longitudinal member and the transverse member, and in particular, the longitudinal member is deformed and warped downward. Can be prevented.

  Hereinafter, an embodiment of the present invention will be described based on a part. FIGS. 1 and 2 show an embodiment of the present invention, which is arranged on a roof surface 1 of a building B at an arbitrary interval. A frame made up of a plurality of master ropes 2 laid down, guides 3 that are slidably inserted into the master ropes 2 and stopped at arbitrary positions, and vertical members 5 and cross members 6 that are coupled to the respective guides 3 It consists of a body A and a net 7 connected between each frame A, A.

  Both ends of each master rope 2 are coupled via a stopper 9 that is detachably coupled to the roof eaves of the roof, and the length is adjusted by a known tension tool 8 and the tension is adjusted.

  The stopper is composed of a hook 18 having a U-shaped cross section and a bolt or screw screw 19 for fastening the hook 18 to the eaves.

  The guide 3 is composed of Lolip (trademark) or the like, and slides to an arbitrary position along the master rope 2 and can be stopped at an arbitrary position using a stopper.

  In other words, the guide 3 is slid according to the work position, and the net 7 is positioned according to the position of this guide.

  The tensioner 8 can adjust the length and the tension by loosening or tensioning the master rope 2 by the turning operation of the handle 10, and can obtain a buffering effect according to the tension.

  A lifeline may be fixed or slidably attached to the master rope 2, and the other end of the lifeline may be wound around the operator's body for safety.

  The vertical members 5 and the horizontal members 6 are integrally formed in a side face V shape, and each of the horizontal members 6 is preferably placed on the roof surface 1 via the buffer material 11. However, the direct roof surface 1 may be used.

  A horizontal support 5A is provided between the vertical members 5 and 5 for reinforcement, but it can be used even without this.

  Each vertical member 5 is provided with net stoppers 5B and 5B on the upper and lower sides, and the net 7 is extended between the net stoppers 5A and 5A and the side portion of the cross member 6.

  As a result, the net 7 is always arranged on the roof surface 1 side from the vertical member 5.

  According to the fall protection device for roof construction according to this embodiment, when an operator slips and slides down along the roof surface 1 during construction, the worker falls on the roof because it is supported by being caught by the net 7. Is prevented.

  At this time, since the net 7 and the master rope 2 are slackened or stretched at the same time, a shock-absorbing effect can be exerted to absorb the impact, and the body can be damaged or injury can be prevented.

FIG. 3 shows a reference form , which includes a plurality of frames D provided at an arbitrary interval between the roof surface 1 of the building B and the frame scaffold C, and each frame D, A vertical member 12 comprising a net 7 coupled between D and fixed to the frame scaffold D in a detachable manner, and a horizontal member pivotally attached to the vertical member 12 and placed on the roof surface 1 13.

  In this case, since there are various heights of the roof of the building B, according to the height, the cross member 13 can be rotated along the arrow Y around the pin P, and the height of the roof surface 1 is set. Regardless, the end of the cross member 13 can be placed on the roof surface 1.

  You may reinforce by installing the horizontal support | pillar 16 between the adjacent vertical members 12 and 12. FIG.

  The cross member 13 may be placed directly on the roof surface 1 or may be placed via a cushioning member 15 as shown in the figure. According to this embodiment, even if an operator slides down from above the roof surface 1, the net 7 is caught in front of the eaves and the operator supports the operator while the net 7 is loosened, so that it is prevented from falling down to the eaves. . Moreover, since the net 7 has a buffering effect, it prevents the body from being damaged or injured.

FIG. 4 shows another reference form, which includes a frame scaffold C provided opposite to the roof surface 1 of the building B and a plurality of frames provided at the eaves of the building B or at the end of the roof surface 1. It consists of the net | network 7 constructed between the fastener material 9 of this.

  The stopper 9 includes a hook 18 having a U-shaped cross section and a screw screw 19 as in the previous embodiment. For example, the hook 9 is hooked on a mounting member such as a horizontal column 17 disposed under the eaves. It is fixed with screws 17.

  And the net | network 7 is constructed between the upper part of the building material of the frame scaffold C, and the screw screw 19 in each hook 19.

  For this reason, when the worker slips down during the renovation work on the roof surface 1, the net 7 supports the worker and prevents the worker from falling down under the eaves. To ease safety.

  FIG. 5 shows another embodiment of the present invention, which is a slight modification of the embodiment shown in FIG. 1 and FIG. 2 described above. The form is the same.

  That is, this fall protection device for roof construction includes a plurality of master ropes 2 installed on the roof surface 1 of the building B at an arbitrary interval, and is slidably inserted into the master ropes 2 at arbitrary positions. The guide 3 to be stopped, the frame A composed of the longitudinal members 5 and the transverse members 6 respectively coupled to the lower ends of the respective master ropes 2, the elastic net 7 coupled between the respective frames A and A, and the guide 3 And a vertical member 5 through a bracket 22 and another rope 21 connected between the cross member 6.

  In this embodiment, when the operator slides down along the roof surface 1 and is supported by the net 7, the impact acts on the longitudinal members 5 and the transverse members 6, and particularly warps downward by deforming the longitudinal members 5. It prevents it from returning.

  That is, even when an impact is applied to the longitudinal member 5, the rope 20 is stretched to pull the longitudinal member 5 upward, so that the longitudinal member 5 is not bent downward from the roof surface B. It does not warp and is held in a normal position, so that more reliable safety can be achieved. Other configurations and operational effects are the same as in the embodiment of FIG.

FIG. 6 relates to another reference form, which is a modification of the embodiment shown in FIGS.

  This consists of a plurality of frames E provided at an arbitrary interval between the roof surface 1 of the building B and the frame scaffold C, and an elastic net 7 coupled between the frames E, E. One end of each frame E is rotatably coupled to the building material 25 of the frame scaffold C, and the other end is placed on the roof surface 1.

  In this case, the frame E is formed in a rectangular shape, and a horizontal column 26 is installed on the upper end of the building material 25, and the frame E is rotatably coupled to the horizontal column 26 via a hinge 24.

  Other configurations and operational effects are the same as those of the embodiment of FIGS.

Next , FIGS. 7 to 9 show still another reference form, in which the elastic net 7 is installed across the ladders 35, 35 arranged on the roof surface 1.

  That is, the roof construction crash protection device includes a plurality of ladders 35 and 35 fixed on the roof surface 1, struts 30 and 30 provided upright on the sides of the ladders 35 and 35, The frame 27 is composed of a frame 29, 28 detachably coupled to the ladders 35, 35 through 30, and the elastic net 7 is extended to each frame 27, 28.

  Each of the frames 27 and 28 is formed in a rectangular shape, but these may be formed integrally or may be separately formed and connected later. 28 may be simply coupled as they are, or may be slidably coupled.

  There are various methods for connecting the frame bodies 27, 28, and 29 to the support column 30. For example, a hook member 31 shown in FIG. 9 is used.

  The hooking member 31 includes a side claw-shaped bracket 32, a rod 33 inserted into the cylindrical portion 32B of the bracket 32 in a slide, and a hook 34 formed at the tip of the rod 33 and facing the tip claw 32A of the bracket 32. And a nut 36 screwed to the rear end of the rod 33.

  9A and 9B, the bracket 32 is coupled to one of the frame 29 and the support column 30 of the frame bodies 27 and 28, and the support column 30 and the frame 29 are connected to the nail of the bracket 32. It is clamped by a nut 36 while being held in parallel by the portion 32A and the hook 34.

In this reference form, even if an operator falls from above the roof surface 1 or a building member slips, these are supported by the net 7 to prevent further fall, and the impact of the net 7 due to the elasticity of the net 7 Can be absorbed and is safe.

In each of the above-described embodiments or reference embodiments , the elastic net-like net 7 is used as the support member, but an elastic cloth sheet, resin sheet, rubber, spring, or other elastic member may be used. .

In addition, there is a case where a handrail (not shown) made up of the frame 30 is erected on both sides or one side of the ladder 35 and the frame bodies 27 and 28 are coupled to the handrail at right angles. In this case, FIG. ), The frame 29 and the handrail frame 30 are sandwiched between the claw portion 32A of the bracket 32 and the hook 34 while being orthogonal to each other. The operational effects are the same as in the case of the reference form of FIGS. 9A and 9B.

(A) (B) is the top view and front view of the roof construction fall prevention apparatus which concern on one embodiment of this invention. (A) and (B) are a partially enlarged plan view and a partially enlarged front view of FIG. (A) and (B) are a partially enlarged plan view and a front view of a roof construction crash prevention device according to a reference embodiment . (A) and (B) are a partially enlarged plan view and a front view of a roof construction crash prevention device according to another reference embodiment . (A) (B) is the top view and front view of the roof construction fall prevention apparatus which concern on other embodiment of this invention . (A) (B) is the top view and front view of the roof construction fall prevention apparatus which concern on another reference form . It is a perspective view of the roof construction fall prevention apparatus which concerns on other reference form . 7 is an enlarged front view of the frame portion. (A) (B) (C) is the front view and top view which show the use condition of the bracket used for the roof construction fall prevention apparatus of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Roof surface 2 Parent rope 3 Guide 5 Vertical member 6 Horizontal member 7 Net 9 Stopper 12 Vertical member 13 Horizontal member 20, 21 Rope 22 Bracket 25 Building material 27, 28 Frame 30 Strut 31 Hook member 32 Bracket 32A Claw part 33 Rod 34 hook 35 ladder

Claims (3)

A plurality of master ropes (2) whose ends are coupled to the roof eaves of the roof of the building (B) via stoppers (9) and are erected at arbitrary intervals on the roof surface (1) ; A frame comprising a guide (3) slidably inserted into each master rope (2) and stopped at an arbitrary position, and a longitudinal member (5) and a transverse member (6) coupled to each guide (3) ( A fall protection device for roof construction characterized by comprising A) and a net (7) coupled between the respective frames (A) and (A) . The fall protection device for roof construction according to claim 1, wherein the length of the master rope (2) is adjusted by the tensioning tool (8) and the tension is adjusted . A rope (20) coupled via a bracket (22) between the guide (3) and the longitudinal member (5), and another rope (21) coupled between the transverse member (6). The fall protection apparatus for roof construction according to claim 1 or 2, characterized by comprising:

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