JP4641871B2 - Scaffold for roof construction - Google Patents

Description

  The present invention relates to a scaffold used for construction of a roof of a building, a roof of a shrine, a roof of a dome stadium or a roof of a general house, and in particular, a roof whose roof surface is curved in a concave or convex shape. It is related with scaffold suitable for construction.

  Generally, when building or repairing a roof of a building or a general house, if the roof has a slope of an arbitrary angle, it is difficult for an operator to walk vertically and horizontally along the roof surface. The posture becomes unstable, the workability is poor, and in the worst case, there is a risk that the worker falls and falls to the ground.

  Therefore, as shown in Patent Document 1, a roof construction that prevents a worker from falling or falling to the ground during work while walking on the roof surface can be performed safely and prevent personal injury. A scaffold has been developed.

This roof construction scaffold is composed of an angle-adjustable rigid trap placed vertically on the roof surface in accordance with the slope of the roof surface, and an angle-adjustable handrail raised on one or both sides of the trap. The scaffolding plate is horizontally coupled to the side of the tarp via an adjustable scaffolding plate support bracket, and the handrail is erected on one side or both sides of the scaffolding plate. An operator walks and works.
Japanese Patent Laid-Open No. 2002-89033 (see drawings, claim 1)

  The above-mentioned scaffolds for roof construction can be walked along the laps and scaffolding boards, and the handrails are also provided, so that the safety of the workers can be improved and there are functional defects. Improvement is desired.

  In other words, in the case of a roof that is bent in a concave shape in addition to a slope at an arbitrary angle, such as a shrine roof, or a roof that is bent in a convex shape, such as a roof of a dome stadium or a roof of an oil tank In addition, since the above-mentioned conventional traps and scaffolding boards are rigid and horizontal, there is a case where they cannot be fitted snugly along the concave or convex roof surface.

  As a result, a gap is generated between the end of the wrapping or scaffolding plate and the roof surface, and the wrapping or scaffolding plate swings by this gap and becomes unstable, and the operator may fall.

  Therefore, the object of the present invention is to improve the stability of the roof surface even when the roof surface is curved in a concave shape or a convex shape, thereby improving the stability, preventing the operator from falling, and ensuring the safety of walking and work. It is to provide a scaffold for roof construction.

To achieve the object, means of the present invention includes a bendable plate, Ri Do and a plurality spaced the step on the surface of the plate, a roof construction that upright handrail on one or both sides of the plate In the scaffolding, the handrail is composed of a vertical column and two horizontal columns that are pivotally attached to the upper and lower sides of the vertical column, and brackets for handrails are detachably attached to both ends of the plate. The vertical strut is removably inserted into a socket upright on the bracket, guide holes are provided along the short direction at both ends of the plate, and two rods along the guide hole are provided on the handrail bracket. The rods are inserted one by one into the guide holes of the two adjacent plates provided, and the plates are connected in the longitudinal direction.

In this case , it is preferable that an auxiliary sheet with anti-slip is provided on the lower surface of the plate corresponding to the step.

  Similarly, it is preferable that an auxiliary sheet with anti-slip is provided on the lower surface of the plate corresponding to the step.

According to the present invention, since the plate is formed to be bendable, even if the whole or part of the roof surface is curved in a concave shape or a convex shape, the plate can be bent along this curved surface. The lower surface can fit snugly along the roof surface, and the plate can be prevented from swinging or sliding in the vertical or horizontal direction. For this reason, the worker can stably walk and work on the steps on the board, prevent the worker from falling, and improve safety. In addition, an arbitrary number of single roof construction scaffolds can be provided along the longitudinal direction via handrail brackets so as to correspond to the area of the construction roof surface.

  Embodiments of the present invention will be described below with reference to the drawings. The scaffold A for roof construction according to the present invention is not only a normal inclined roof of a general house, but also a shrine structure B as shown in FIG. Thus, it is suitable to be used by being placed on the roof surface P curved in a concave shape or the roof surface Q curved in a convex shape of a structure C such as a dome stadium as shown in FIG.

As shown in FIGS. 1 (A) and 1 (B), the basic structure of the scaffold A for roof construction is composed of a flexible plate 2 and a plurality of steps 3 provided on the surface of the plate 2. A handrail is erected on one side or both sides.

  In this case, the plate 2 is formed of rubber, a soft synthetic resin or other flexible material, and the step 3 is formed in a cross-sectional mountain shape as shown in FIG. Stop is given.

  Similarly, on the lower surface of the plate 2 corresponding to step 3, an auxiliary sheet 6 formed of rubber, soft synthetic resin or other flexible material provided with anti-slip comprising sawtooth-like ribs 5 is provided.

  The handrail T is composed of a vertical column 7, two horizontal columns 8 and 8, and a brace 9 that are pivotally attached to the upper and lower sides of the vertical column 7.

  Further, as shown in FIG. 5, a handrail bracket 10 is detachably attached to both ends of the plate 2, and the vertical strut 7 is detachably inserted into a socket 11 erected on the handrail bracket 10.

In this case, as can be seen from FIG. 2, both ends of the plate 2 are bent to provide guide holes 2A along the short direction. Then, the handrail bracket 10 is provided with two rods 12 and 12 along the guide hole 2A as shown in FIGS. 5 and 8, and as shown in FIG. 1, each guide of the two adjacent plates 2 and 2 is provided. each hole 2A by inserting one by one the rod 12 is provided continuously the plates of the longitudinal direction.

  More specifically, the plate 2 is formed of a flexible material so that it is disposed along the gradient of the roof surface 1 or 2, and the roof surface 1 or 2 is curved in a concave or convex shape. Even if uneven surfaces are continuously formed, these surfaces are uniformly bent and the entire lower surface is fitted.

  The plate 2 may be a metal rod or a long and thin plate material connected in a plurality of longitudinal directions so as to be bent. In short, it only needs to be able to fit evenly according to the unevenness of the roof surface.

  As shown in FIG. 6, the step 3 is formed in a mountain shape with a pair of inclined portions 3a, 3a and a central rectangular body portion 3b, and ribs 4 are formed on the surfaces of the inclined portions 3a and the rectangular parallelepiped portion 3b. Is formed.

  For this reason, as shown in FIG. 7, even if the operator steps into any of the inclined portions 3 a and 3 a of Step 3, slip prevention with respect to the shoe D is achieved by the rib 4.

  The lower surface of the plate 2 may be roughened to prevent slipping, and as shown in FIG. 6, the auxiliary sheet 6 formed with ribs 5 is overlapped on the lower surface side, the bent portions at both ends of step 3, the plate 2 and the auxiliary sheet 6 may be fixed by the bolt 13 and the nut 14.

  A groove 15 is formed in the auxiliary sheet 6 so that the head of the bolt 13 does not protrude downward.

  Both ends of step 3 are preferably covered with a mountain-shaped cover 16.

  The handrail T includes a vertical support 7 and a horizontal support 8, and a brace 9 may be installed in an oblique direction as necessary.

  The vertical rail 7 may be pivotally supported on the handrail bracket 10 and both ends of the horizontal column 8 may be pivotally attached to the vertical column 7 so that the entire handrail T can be folded. Further, the vertical support 7, the horizontal support 8, and the brace 9 may be extendable.

  As shown in FIG. 2, the scaffold A may be composed of a single plate 2 and a handrail T. Depending on the size of the roof surface, the scaffold A is formed along the longitudinal direction as shown in FIG. A plurality of them may be combined.

  When two pairs of single scaffolds A are adjacently connected, a handrail bracket 10 shown in FIGS. 1 and 8, a pair of parallel rods 12 and 12 integrally connected to the handrail bracket 10, A stop 16 is used.

  In FIG. 1, the handrail bracket 10 includes hook pieces 17, 17 extending in the left-right direction and a pair of upper and lower support pieces 18, 18 extending in the front direction, and the short side of the plate 2 on the opposite side of the support piece 18. Two rods 12, 12 extend horizontally in the rearward direction.

  Further, a socket 10 for inserting the vertical column 7 in the handrail T is attached between the pair of support pieces 18 and 18 and stands upward.

  A rod stopper 16 is provided on the opposite side of the handrail bracket 10, and this stopper 16 is a pair of left and right hooking pieces 19, 19 having rod insertion holes, and a horizontal fixing piece having holes 21, 21. It consists of twenty.

  As a result, the handrail bracket 10 is placed along the side surfaces of the front end portions of the plates 2, 2 adjacent to the left and right, and then the rods 12, 12 are inserted into the holes 2 A, 2 A of the plates 22, respectively. Through the rod insertion hole. Finally, the lock pins 23 and 23 provided on the rods 12 and 12 are respectively inserted into the holes 21 of the stopper 16 to prevent the rods 12 and 12 from coming off.

  As a result, a pair of adjacent plates 2 and 2 are joined in the longitudinal direction which is left and right, and by continuing the same joining, an arbitrary number of single scaffolds A are continuously provided along the longitudinal direction. It corresponds to the areas of P and Q.

  The lower part of the vertical column 7 is inserted into the socket 11, and the socket 11 and the lock pin 24 inserted in the holes provided in the vertical column 7 are coupled to each other.

  When the handrail bracket 10 and the stopper 16 are held at the end of the final scaffold A, a suspension wire or rope 23 is provided in the holes 22 of the hook pieces 17 and 19 of the handrail bracket 10 and the stopper 16. The other end of the wire or rope 23 is connected to a holding member provided above the roofs P and Q, and the holding member is suspended through the wire or the lobe 23 to thereby secure a scaffold. A is safer by preventing A from sliding down the roof.

  In the scaffold A of the present invention, the slip is usually prevented by the auxiliary sheet 6 having the rough surface and the ribs 5 on the lower surface of the plate 2, but it cannot be withstood by the above-described anti-slip mechanism due to a large impact or the like. Even if this happens, it is held by the wire or rope 23 so that it does not fall downward.

  As shown in FIGS. 3 and 4, a protective plate such as a wire mesh and a wall R are attached below the scaffold A, and tools and building materials fall from the top of the roof. Even if a person slips, they receive them and prevent them from falling to the ground.

(A) It is a top view of the scaffold for roof construction concerning one embodiment of the present invention.

(B) It is a front view similarly.
(A) It is an enlarged plan view of a single roof construction scaffold.

(B) It is a front view similarly.
(A) It is a front view of the scaffold for roof construction of the state attached to the roof of a shrine.

(B) It is a top view similarly.
(A) It is a front view for roof construction of the state attached to the roof of a dome stadium.

(B) It is a top view similarly.
(A) It is an enlarged plan view of the state which attached the bracket for handrails to the edge part of a single scaffold.

(B) It is a front view similarly.
It is expanding Taisho view of steps. It is a front view which shows the operator's stepping-on state with respect to a step. (A) It is an enlarged rear view of a stopper.

  (B) It is an enlarged plan view of a rod and a handrail bracket.

  (C) It is an enlarged front view of the bracket for handrails.

Explanation of symbols

2 plate 3 step 4, 5 rib 6 auxiliary sheet 7 vertical support 8 horizontal support 9 breath 10 handrail bracket 11 socket 12 rod A scaffolding P, Q roof surface 2A guide hole

Claims (3)

And bendable plate, Ri Do and a plurality spaced the step on the surface of the plate, the roof construction scaffolding that upright handrail on one or both sides of the plate, and the handrail longitudinal struts, the longitudinal struts It consists of two horizontal struts pivoted on the top and bottom of the board, and a handrail bracket is detachably attached to both ends of the plate, and the vertical strut can be removably attached to a socket that stands on the handrail bracket The guide holes are provided along the short direction at both ends of the plate, two rods along the guide hole are provided in the handrail bracket, and the guide holes of the two adjacent plates are provided in the guide holes. A roof construction scaffold in which the rods are inserted one by one and the plates are connected in the longitudinal direction. The roof construction scaffold according to claim 1, wherein the plate is formed of rubber, a soft synthetic resin, or other flexible material, and the step is formed in a cross-sectional mountain shape and has a non-slip surface. . The scaffold for roof construction according to claim 1 or 2, wherein an auxiliary sheet is provided on the lower surface of the plate corresponding to the step .

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