JP6815548B1 - Construction method of layered body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for constructing a layered body capable of preventing damage to a surface to be constructed and a fall accident by a simple process. SOLUTION: A method of constructing a layered body is an injection device operated by an operator M1 in a part of a surface portion 10 to be constructed which is provided in a horizontal direction or a direction inclined with respect to the horizontal direction and faces upward. A structure 100 in which workers M1 and M2 can grip or restrain workers in a region where a heat insulating reinforcement layer is formed by injecting a foamable resin material from the structure 100. Is placed, and a resin material having foamability is injected from an injection device into an area adjacent to the area where the structure of the surface to be constructed is installed to extend the heat insulating reinforcement layer. [Selection diagram] Fig. 3

Description

The present invention relates to a method for constructing a layered body such as a heat insulating reinforcing layer on a surface to be constructed such as a roof of a building.

For example, for slate roofs, folded-plate roofs, etc. of large buildings such as factories and warehouses, maintenance such as installation, renewal, and repainting of heat insulating materials is performed as appropriate to ensure heat insulation, waterproofness, and weather resistance. There is a need.
When a worker performs construction on the roof, a scaffolding that serves as a work floor on which the worker rides is placed on the roof in order to prevent accidents such as falling due to the slope of the roof and stepping on due to damage to the roof. It is known.

As a conventional technique relating to a scaffolding installed on a roof, for example, Patent Document 1 describes a roof surface in order to prevent an operator from falling or falling to the ground during walking or work on the roof surface. Angle-adjustable talaps arranged vertically on the roof surface according to the slope, angle-adjustable handrails standing on one or both sides of the talap, and scaffolding plate support brackets with adjustable angles on the sides of the talap. A work scaffold for roof construction is described, which comprises a scaffolding board connected horizontally via a scaffolding board and handrails erected on one side or both sides of the scaffolding board.
Further, Patent Document 2 includes a rail member installed on the roof and extending along the roof so that the work of forming a scaffolding in another work area on the roof can be easily and safely performed. Described is a scaffolding forming device in which a scaffolding plate is arranged on a moving table that moves on a rail member.

Japanese Unexamined Patent Publication No. 2002-89033 Japanese Unexamined Patent Publication No. 2009-46895

The work scaffolding according to the above-mentioned conventional technique needs to be installed on the roof prior to the construction such as painting, and it is premised that the strength of the roof itself can support the scaffolding and the workers.
For example, when the strength of the roof plate is insufficient or when deterioration has occurred, there is a concern that the worker may step on the scaffold during assembly or the roof may be damaged due to the weight of the scaffold itself.
For example, when various layered bodies such as a heat insulating reinforcement layer, a waterproof layer, and a coating film are applied to the surface of a surface to be constructed such as a roof, it is required to prevent damage to the surface to be constructed and a fall accident of an operator. ..
In view of the above-mentioned problems, an object of the present invention is to provide a method for constructing a layered body that can prevent damage to the surface to be constructed and a fall accident by a simple process.

The present invention solves the above-mentioned problems by the following solutions.
The invention according to claim 1 has foamability from an injection device operated by an operator in a part of a portion of the surface to be constructed that is provided in the horizontal direction or along a direction inclined with respect to the horizontal direction and faces upward. A resin material is sprayed to form a heat insulating reinforcement layer, and a structure that can be grasped by the worker or that can restrain the worker is placed in the area where the heat insulating reinforcing layer is formed on the surface to be constructed. A resin material having foamability is injected from the injection device into a region of the surface to be constructed adjacent to the region where the structure is installed to extend the heat insulating reinforcement layer, and the structure is subjected to the heat insulating reinforcing layer. It is a method of constructing a layered body, characterized in that an additional portion is connected and extended so that at least a part thereof is placed in the stretched region .
According to this, by injecting a foamable resin material onto the surface of the surface to be constructed to form a heat insulating reinforcing layer, the strength of the surface to be constructed is increased, and when the structure is placed, the weight of the structure is increased. It is possible to prevent damage to the surface to be constructed.
By further coating the foamable material while preventing the operator from falling with such a structure, the heat insulating reinforcement layer can be safely extended by a simple process.

Further, by connecting and extending the additional portion of the structure according to the extension of the heat insulating reinforcing layer, the construction can be safely performed over a wide range of the surface to be constructed.

The invention according to claim 2 is characterized in that a waterproof resin material is sprayed onto the surface of the heat insulating reinforcing layer to form a waterproof layer, and the structure is placed on the waterproof layer. The method for constructing a layered body according to claim 1 .
According to this, the heat insulating reinforcement layer and the waterproof layer are sequentially constructed by a continuous process, and then the structure is temporarily installed so that the heat insulating reinforcement layer and the waterproof layer can be constructed without making the process excessively complicated. it can.

The invention according to claim 3 is characterized in that the surface of the waterproof layer is coated while the anti-scattering member that catches the droplets of the paint is held by the structure at a distance from the surface to be constructed. The method for constructing a layered body according to claim 2 .
According to this, by using the structure for ensuring the safety of the operator also for holding the scattering prevention member, it is possible to appropriately prevent the scattering of the paint by a simple process.

In the invention according to claim 4 , the structure is placed between a columnar portion arranged so as to project upward or diagonally upward from the surface to be constructed and an intermediate portion or an upper portion of the plurality of columnar portions. The method for constructing a layered body according to any one of claims 1 to 3, wherein the beam portion is provided.
In the invention according to claim 5 , the surface portion to be constructed is an upper surface portion of a roof provided along a direction inclined with respect to the horizontal direction, and the beam portion is substantially along the rafter direction of the roof. The method for constructing a layered body according to claim 4 , further comprising a vertical member to be arranged and a horizontal member arranged substantially along the eaves girder direction of the roof.
According to each of these inventions, the above-mentioned effects can be appropriately obtained with a simple configuration.

The invention according to claim 6 automatically engages with at least a part of the connecting portions of the plurality of members constituting the structure when the plurality of members to be connected are arranged at predetermined relative positions. The method for constructing a layered body according to any one of claims 1 to 5, wherein the interlocking means is provided.
According to this, it is possible to facilitate the connection of each member of the structure and improve the workability and safety when assembling the structure.

As described above, according to the present invention, it is possible to provide a method for constructing a layered body that can prevent damage to the surface to be constructed and a fall accident by a simple process.

It is a schematic perspective view which shows the state at the time of the start of construction in 1st Embodiment of the construction method of the layered body to which this invention was applied. It is a schematic perspective view which shows the state at the start of blowing up in the construction method of the layered body of 1st Embodiment. It is a schematic perspective view which shows the blowing process in the state which the structure is temporarily installed in the construction method of the layered body of 1st Embodiment. It is a schematic diagram which shows the spraying process of the protective layer in the state which the scattering prevention member is temporarily installed in the construction method of the layered body of 1st Embodiment. It is a schematic perspective view which shows the structure of the lateral member in 2nd Embodiment of the construction method of the layered body to which this invention was applied. It is a schematic perspective view which shows the structure of the joint in the construction method of the layered body of 2nd Embodiment. It is a schematic diagram which shows the structure of the hook used in the 3rd Embodiment of the construction method of the layered body to which this invention is applied.

<First Embodiment>
Hereinafter, the first embodiment of the method for constructing a layered body to which the present invention is applied will be described.
The method of constructing the layered body of the first embodiment is, for example, a heat insulating reinforcing layer (foam layer) on the surface portion of a steel plate slate roof, a folded plate roof, etc. provided in a relatively large building such as a factory, a warehouse, or a store. , A layered body such as a waterproof layer (coat layer) and a protective layer (top layer) is sequentially constructed (formed).

The heat insulating reinforcing layer (foam layer) is formed by spraying a foamable resin material onto the surface of the roof, which is the surface to be constructed, as a spray.
As the material of the heat insulating reinforcing layer, for example, a resin foaming agent such as a polyurethane resin, a phenol resin, or a mixture thereof can be used.
For example, a resin containing a polyol or polyprene glycol (PPG) as a main component can be used as the main agent.
Further, a phenolic resin, a main agent of a phenolic resin containing a novolak-based thermoplastic resin as a main component, or a mixture thereof can also be used as a main agent.
A cross-linking agent such as isocyanate is mixed with these main agents at a mixing ratio of about 1: 1 and foamed, and a filler, an additive or the like is added to prepare a material for injection.
Isocyanate is a kind of non-fluorocarbon foaming agent, and has a function of generating carbon dioxide gas by reaction with water to foam the material.
When this material is sprayed onto the surface of the roof, foaming starts immediately, and a heat insulating reinforcing layer having a thickness of, for example, 10 mm or more is formed in, for example, about several tens of seconds. The heat insulating reinforcement layer is firmly adhered to the roof surface due to the adhesiveness of the material.
The heat insulating reinforcing layer has sufficient strength to hold the weight of the worker and the structure used for preventing the fall, for example.

The waterproof layer (coat layer) is formed by spraying a resin material constituting the reinforced waterproof layer onto a region of the roof surface where the heat insulating reinforcing layer is formed.
As the main agent of this material (coating agent), for example, a polyurethane resin containing a polyol or polyprene glycol (PPG) as a main component can be used.
A cross-linking agent such as isocyanate is mixed with this main agent at a mixing ratio of about 1: 1 and a filler, an additive or the like is added to prepare a coating agent.

The protective layer (top layer) is formed of a two-component urethane-based paint having ultraviolet resistance.
The material forming each of these layers is, for example, together with auxiliary equipment such as a compressor that pumps them to a spray gun that is gripped and operated by an operator via a heater hose, and a generator that generates electric power to drive the compressor. , Loaded on a moving body such as a truck and carried to the construction site.

Hereinafter, the method of constructing the layered body of the first embodiment will be described in more detail.
FIG. 1 is a schematic perspective view showing a state at the start of construction in the construction method of the layered body of the first embodiment.
In the first embodiment, the surface to be constructed is, for example, a roof 10 provided in a relatively large building 1 such as a factory, a warehouse, or a large store.
The roof 10 can be, for example, a steel plate slate roof or a folded plate roof.
The surface of the roof 10 extends substantially along a flat surface and is arranged so as to be inclined so that the eaves side is lower than the ridge side.
The building 1 has a side wall 20.
The side wall 20 is a portion forming a part of the outer wall of the building 1, and extends downward from the eaves of the roof 10 along the vertical direction.

In the first embodiment, a heat insulating reinforcing layer, a waterproof layer, and a protective layer are sequentially formed on the surface of the roof 10 by spray painting with a spray gun operated by an operator.
First, an external scaffold 30 is constructed along the side wall 20 on the eave side of the roof 10.
The external scaffold 30 is configured by fastening, for example, a pillar portion 31 and a beam portion 32 made of a metal circular pipe with a clamp (not shown), and a top surface 33 is provided on the upper portion.
The top surface 33 is a panel-shaped member having an upper surface portion extending substantially along the horizontal direction, and has a strength sufficient for an operator to ride on the panel-like member.
The top surface 33 has substantially the same height as the eaves of the roof 10, and is arranged adjacent to the eaves.

First, the heat insulating reinforcement layer and the waterproof layer are constructed.
This work is performed by, for example, two workers M1 and M2.
The worker M1 holds a spray gun that injects a foaming agent that is a material for the heat insulating reinforcing layer.
The worker M2 holds a spray gun that injects a resin material that is a material for the waterproof layer.
Workers M1 and M2 use the top surface 33 of the external scaffolding 30 as a work floor, and start work on the work floor.
Each material is transported to the spray guns of the workers M1 and M2 in a pressurized state from the equipment loaded on the equipment vehicle on the ground, for example.

First, construction is started from the lowermost region R1 having a predetermined width from the eaves side of the roof 10.
The worker M1 sprays the foaming agent spray Sf onto the surface of the roof 10 while walking along the eaves on the top plate 33 from one end side in the left-right direction of the region R1 to the other end side. To form a heat insulating reinforcement layer.
At the same time, the worker M2 moves to the place where the worker M1 has sprayed the foaming agent while spraying the spray Sc of the waterproof layer material with a predetermined time difference (for example, several tens of seconds).
When the worker M2 reaches the other end side of the region R1, a heat insulating reinforcing layer and a waterproof layer are formed in the region R1.

Next, the construction (blowing) of the region R2 above the region R1 is performed.
FIG. 2 is a schematic perspective view showing a state at the start of blowing up in the method of constructing the layered body of the first embodiment.
Workers M1 and M2 ride on the area R1 of the roof 10 on which the heat insulating reinforcement layer and the waterproof layer are already formed, and use this as the work floor in the area R2 on the ridge side (upper side, far from the eaves) than the area R1. , The spray Sf of the foaming agent and the spray Sc of the material of the waterproof layer are sequentially sprayed and moved.

Next, the construction (blowing) of the region R3 further above the regions R1 and R2 is performed.
FIG. 3 is a schematic perspective view showing a blowing process in a state where the structure is temporarily installed in the method of constructing the layered body of the first embodiment.
As shown in FIG. 3, when the area R3 and the area above it (building side) are constructed, it functions as a handrail held by the workers M1 and M2 on the roof 10, or the worker M1 , A structure 100 capable of locking a safety belt (not shown) for preventing the M2 from falling is temporarily installed.

In the structure 100, for example, a columnar portion 110, a horizontal member 120, and a vertical member 130 made of a single pipe for scaffolding made of metal such as carbon steel are moved upward from the roof 10 by a clamp C such as an orthogonal clamp or a universal clamp. It is assembled in the shape of an erected frame.
The columnar portion 110 is arranged so as to project upward or diagonally upward from the surface of the roof 10 and substantially along the longitudinal direction in the vertical direction.
As the columnar portion 110, for example, a single pipe having a length of about 1 m can be used.
The lower end of the columnar portion 110 is in contact with the surface of the roof 10 via a protective base plate 111 such as the roof 10.
The base plate 111 is placed on the waterproof layer formed on the surface of the roof 10 by the above-mentioned steps.
The base plate 111 is formed of, for example, a resin-based material, and is provided with an engaging portion that engages with the lower end portion of the columnar portion 110.
The base plate 111 has a function of protecting the roof 10 by distributing the load from the columnar portion 110 and a non-slip function of preventing the columnar portion 110 from sliding down along the slope of the roof 10.

The horizontal member 120 is a beam-shaped member arranged along a direction substantially parallel to the eaves of the roof 10 in the longitudinal direction.
As the horizontal member 120, for example, a single pipe having a length of about 5 m can be used.
The vertical member 130 is a beam-shaped member arranged along a direction substantially parallel to the rafters of the roof 10 in the longitudinal direction.
As the vertical member 130, for example, a single pipe having a length of about 2 m can be used.
The horizontal member 120 and the vertical member 130 are assembled so that the planar shape seen from the normal direction of the surface of the roof 10 is a lattice shape in which rectangular shapes are substantially combined, and the columnar portion 110 allows, for example, from the surface of the roof 10. It is held at a distance of about 1 m.

Workers M1 and M2 stand on the ridge side (upper side) of the structure 100 with the already constructed heat insulating reinforcement layer and waterproof layer as a work floor, and extend the heat insulating reinforcement layer and waterproof layer upward. Move along the direction of the eaves while spraying in sequence.
Further, the structure 100 is extended to the ridge side by connecting additional portions connecting the columnar portion 110, the horizontal member 120, and the vertical member 130, which are sequentially added, as the heat insulating reinforcement layer and the waterproof layer are extended toward the ridge side. To.

Further, a shatterproof member 140 is provided on the upper part of the structure 100.
The shatterproof member 140 prevents paint droplets from scattering to the surroundings when the protective layer is applied to the surface of the waterproof layer.
As the shatterproof member 140, for example, a flexible net-like member can be used.
The shatterproof member 140 is covered with the structure 100 from above, and is fixed to the horizontal member 120 and the vertical member 130 by, for example, fastening with a string-shaped member.

FIG. 4 is a schematic view showing a step of spraying the protective layer in a state where the shatterproof member is temporarily installed in the method of constructing the layered body of the first embodiment.
In FIG. 4, in a state where the worker M3 holds the spray gun G, the spray St of the material of the protective layer is applied to the heat insulating reinforcement layer of the roof 10 inside the structure 100 and under the scattering protection member 140. , Spray on the surface where the waterproof layer is formed.
The scattering protection member 140 is lifted upward from the structure 100 as needed in the area around the worker M3.

According to the first embodiment described above, the following effects can be obtained.
(1) The strength of the roof 10 is increased by injecting a foamable resin material onto the surface of the roof 10 which is the surface to be constructed to form a strong heat insulating reinforcement layer having a thickness of about 10 mm, and the structure 100. It is possible to prevent the roof 10 from being damaged due to its own weight or the like when the roof 10 is placed.
By further applying the foamable material while preventing the workers M1 and M2 from falling with such a structure 100, the heat insulating reinforcement layer can be safely extended by a simple process.
(2) By connecting additional columnar portions 110, horizontal members 120, and vertical members 130 to the structure 100 according to the extension of the heat insulating reinforcing layer to extend the structure 100, a wide range extending to the ridge side of the roof 10 Can be safely constructed in a wide range.
(3) By constructing the heat insulating reinforcing layer using the instant curing type material, immediately constructing the waterproof layer, and then temporarily installing the structure 100 on the surface of the waterproof layer, the process is not excessively complicated. A heat insulating reinforcement layer and a waterproof layer can be constructed.
(4) By constructing (painting) the protective layer with the shatterproof member 140 provided on the upper part of the structure 100, the protective layer (top layer) can be prevented from scattering paint droplets by a simple curing process. Construction can be done.
(5) The structure 100 is composed of a columnar portion 110 protruding from the roof, a horizontal member 120 connected at the upper part of the columnar portion 110 and extending along the eaves direction and the rafter direction, respectively, and a vertical member 130. , The above-mentioned effect can be surely obtained by a simple configuration.

<Second Embodiment>
Next, a second embodiment of the method for constructing a layered body to which the present invention is applied will be described.
In each of the embodiments described below, the same reference numerals are given to the parts common to the previous embodiments, the description thereof will be omitted, and the differences will be mainly described.
In the method of constructing the layered body of the second embodiment, instead of assembling the structure using the clamp member as in the first embodiment, the columnar portion 110, the horizontal member 120, and the vertical member having the joint mechanism described below The 130 is used to enable so-called one-touch assembly.

FIG. 5 is a schematic perspective view showing the configuration of the horizontal member in the method of constructing the layered body of the second embodiment.
Although the horizontal member 120 will be described as an example in FIG. 5, the columnar portion 110 and the vertical member 130 also have substantially the same configuration as the horizontal member 120.
As shown in FIG. 5, the cross member 120 has an inner cylinder 121, an engaging protrusion 122, and an engaging hole 123.

The inner cylinder 121 is a cylindrical portion provided so as to project from one end of the horizontal member 120 in the longitudinal direction.
The outer diameter of the inner cylinder 121 is formed to be smaller than the inner diameter of the other portion (main portion) of the horizontal member 120.
The inner cylinder 121 can be inserted into the open end of the lateral member connecting portion 230 of the joint 200, which will be described later.

The engaging protrusion 122 is provided so as to project toward the outer diameter side from the opening formed on the outer peripheral surface of the inner cylinder 121.
The tip of the engaging protrusion 122 is formed as, for example, a spherical convex surface.
The engaging protrusion 122 is urged toward the protruding direction side (outer diameter side of the inner cylinder 121) by a spring element (not shown) provided on the inner diameter side of the inner cylinder 121.
When the inner cylinder 121 is inserted into the horizontal member connecting portion 230 of the joint 200, the engaging protrusion 122 is pressed against the inner peripheral surface of the horizontal member connecting portion 230 and pushed toward the inner diameter side of the inner cylinder 121, and then engaged. When the position coincides with the hole 231, it is extended to the outer diameter side and inserted into the engaging hole 233.

The engaging hole 123 is provided near the end of the horizontal member 120 on the side opposite to the side on which the inner cylinder 121 is provided.
The engaging hole 123 is formed so as to penetrate the peripheral surface of the lateral member 120 from the inner diameter side to the outer diameter side.
The engaging protrusion 222 provided in the inner cylinder 221 of the lateral member connecting portion 220 of the joint 200 can be inserted into the engaging hole 123.

FIG. 6 is a schematic perspective view showing the configuration of the joint in the method of constructing the layered body of the second embodiment.
The joint 200 is provided at a connecting portion of the columnar portion 110, the horizontal member 120, and the vertical member 130.

The joint 200 includes a columnar portion connecting portion 210, a horizontal member connecting portion 220, a horizontal member connecting portion 230, a vertical member connecting portion 240, a vertical member connecting portion 250, and the like.
The columnar portion connecting portion 210 is a portion to which the upper end portion of the columnar portion 110 is connected.
At the upper end of the columnar portion 110 (the end on the side opposite to the base plate 111 side), the inner cylinder 121 of the horizontal member, the inner cylinder similar to the engaging protrusion 122, and the engaging protrusion are provided.
The columnar portion connecting portion 210 is a cylindrical member arranged so that the central axes coincide with or substantially along the vertical direction.
The inner cylinder of the columnar portion 110 is inserted from below into the inner diameter side of the columnar portion connecting portion 210.
The columnar portion connecting portion 210 is provided with an engaging hole 211 that engages with the engaging projection of the columnar portion 110.

The horizontal member connecting portions 220 and 230 are cylindrical members provided so as to project from the upper end portion of the columnar portion connecting portion 210 on both sides along the longitudinal direction of the horizontal member 120.
The horizontal member connecting portion 220 is a portion of the horizontal member 120 that is connected to the side where the engaging hole 123 is provided.
The horizontal member connecting portion 220 includes an inner cylinder 121 of the horizontal member 120 described above, an inner cylinder 221 similar to the engaging protrusion 122, and an engaging protrusion 222.
The horizontal member connecting portion 230 is a portion of the horizontal member 120 that is connected to the side where the inner cylinder 121 is provided.
The horizontal member connecting portion 230 is formed in a cylindrical shape into which the inner cylinder 121 of the horizontal member 120 is inserted.
The horizontal member connecting portion 230 includes an engaging hole 231 having the same configuration as the engaging hole 123 of the horizontal member 120.

The vertical member connecting portions 240 and 250 are cylindrical members provided so as to project from the upper end portion of the columnar portion connecting portion 210 on both sides along the longitudinal direction of the vertical member 130.
The vertical member connecting portion 240 is a portion of the vertical member 130 that is connected to the side where the engaging hole (corresponding to the engaging hole 123 of the horizontal member 120) is provided.
The vertical member connecting portion 240 includes an inner cylinder of the horizontal member 120 described above, an inner cylinder 241 similar to the engaging protrusion 122, and an engaging protrusion 222.
The vertical member connecting portion 250 is a portion of the vertical member 130 that is connected to the side where the inner cylinder is provided.
The vertical member connecting portion 250 is formed in a cylindrical shape into which the inner cylinder of the vertical member 130 is inserted.
The vertical member connecting portion 250 includes an engaging hole 251 having the same configuration as the engaging hole 123 of the horizontal member 120.

With the above configuration, for example, the columnar portion 110, the horizontal member 120, and the vertical member 130 are automatically locked by inserting the inner cylinder into the opening end of the joint 200 where the engagement hole is provided to a predetermined depth. It is designed to prevent it from coming off.
Further, the horizontal member 120 and the vertical member 130 are automatically locked by inserting the inner cylinders 221, 241 provided in the joint 200 to a predetermined depth at the end on the side where the inner cylinder is not provided. , It is designed to prevent omission.
Further, when the structure 100 is disassembled, the operator can disengage the engaging projection from the engaging hole by pushing the engaging projection with a tool such as a screwdriver.
According to the second embodiment described above, in addition to the same effect as the effect of the first embodiment described above, it is easy to connect each member of the structure 100, and workability and safety when assembling the structure 100 are achieved. The sex can be improved.

<Third Embodiment>
Next, a third embodiment of the method for constructing a layered body to which the present invention is applied will be described.
The method for constructing the layered body of the third embodiment is characterized in that the shatterproof member 140 is fixed to the structure 100 by the hook 300 described below.

FIG. 7 is a schematic view showing the configuration of the hook in the method of constructing the layered body of the third embodiment.
The hook 300 is a carabiner-shaped S-shaped hook having a main body portion 310, a pipe gate portion 320, a shatterproof member gate portion 330, and the like.

The main body 310 is formed by integrally forming a pipe locking portion 311, a shatterproof member locking portion 312, and an intermediate portion 313, for example, from a metal material or a hard resin-based material.
The pipe locking portion 311 is, for example, a hook-shaped portion formed by being curved in an arc shape and to which the horizontal member 120, the vertical member 130, and the like constituting the structure 100 are locked.
The shatterproof member locking portion 312 is, for example, a hook-shaped portion formed in an arc shape and to which a rope-shaped locked portion 141 provided around the shatterproof member 140 is locked.
The intermediate portion 313 is a portion that connects one end of the pipe locking portion 311 and one end of the shatterproof member locking portion 312.
The main body portion 310 is formed so as to have an S shape as a whole by sequentially connecting the pipe locking portion 311, the intermediate portion 313, and the scattering prevention member locking portion 312.

The pipe gate portion 320 is a member that prevents the pipes from falling off from the pipe locking portion 311.
One end of the pipe gate portion 320 is swingably attached near the boundary between the shatterproof member locking portion 312 and the intermediate portion 313.
The other end of the pipe gate 320 is between a closed state in contact with the end opposite to the intermediate 313 side of the pipe locking portion 311 and an open state separated from the end due to the swing. It is possible to move with.
The pipe gate portion 320 is urged toward the closed state by a spring element (not shown).

The shatterproof member gate portion 330 is a member that prevents the shatterproof member 140 from falling off from the shatterproof member locking portion 312.
One end of the shatterproof member gate portion 330 is swingably attached near the boundary between the pipe locking portion 311 and the intermediate portion 313.
The other end of the shatterproof member gate portion 330 is in a closed state in contact with the end of the shatterproof member locking portion 313 on the side opposite to the intermediate portion 313 side due to the swing, and is opened apart from this. It is possible to move between states.
The shatterproof member gate portion 330 is urged toward the closed state by a spring element (not shown).

According to the third embodiment described above, in addition to the same effect as the effect of each of the above-described embodiments, it is possible to easily fix the shatterproof member 140 to the structure 100 with one touch and one hand. , Workability and safety can be further improved.

(Modification example)
The present invention is not limited to the embodiments described above, and various modifications and modifications can be made, and these are also within the technical scope of the present invention.
(1) The structure of the layered body constructed according to the present invention is not limited to each embodiment and can be changed as appropriate.
For example, the materials constituting each layer and the construction order of each layer can be changed as appropriate.
For example, in each embodiment, the heat insulating reinforcing layer is first formed on the surface of the roof, but for example, a surface treatment having rust prevention may be used prior to this.
Further, a layer other than the heat insulating reinforcement layer, the waterproof layer, and the protective layer in the embodiment may be additionally provided. Further, the material forming each layer is not particularly limited.
(2) The configuration of the structure and the shape, structure, material, manufacturing method, arrangement, etc. of each member are not limited to the configuration of each embodiment, and can be appropriately changed.
For example, in addition to the columnar portion, the vertical member, and the horizontal member as in each embodiment, other members such as a truss shape and a brace shape may be added.
(3) In each embodiment, the roof, which is the surface to be constructed, is inclined with respect to the horizontal plane, but the present invention can also be applied to the surface to be constructed extending along the horizontal plane.
(4) The configuration of the mechanism for engaging the joint portions of the members constituting the structure with one touch is not limited to that of the second embodiment, and can be appropriately changed.

1 Building 10 Roof 11 Houses 20 Side walls 30 External scaffolding 31 Pillars 32 Beams 33 Top surface 100 Structure 110 Columns 111 Base plate 120 Horizontal members 121 Inner cylinder 122 Engagement protrusions 123 Engagement holes 130 Vertical members C clamp 200 Joint 210 Columnar part connecting part 211 Engagement hole 220 Horizontal member connecting part 221 Inner cylinder 222 Engaging protrusion 230 Horizontal member connecting part 231 Engaging hole 240 Vertical member connecting part 241 Inner cylinder 242 Engaging protrusion 250 Vertical member connecting part 251 Engaging hole M1 worker (insulation reinforcement layer construction)
M2 worker (waterproof layer construction) M3 worker (protective layer construction)
Sf foaming agent spray Sc waterproof agent spray St top agent spray

Claims (6)

Insulation reinforcement by injecting a foamable resin material from an injection device operated by an operator into a part of the area to be constructed that is provided in the horizontal direction or along a direction inclined with respect to the horizontal direction and faces upward. Form a layer,
A structure that can be grasped or restrained by the worker is placed in the area of the surface to be constructed where the heat insulating reinforcement layer is formed.
A foamable resin material is injected from the injection device into a region of the surface to be constructed adjacent to the region where the structure is installed to extend the heat insulating reinforcement layer .
A method for constructing a layered body, which comprises connecting and extending an additional portion so that at least a part of the structure is placed in a region where the heat insulating reinforcing layer is stretched . A waterproof resin material is sprayed onto the surface of the heat insulating reinforcement layer to form a waterproof layer.
The method for constructing a layered body according to claim 1, wherein the structure is placed on the waterproof layer. The layered shape according to claim 2 , wherein the surface of the waterproof layer is coated while the anti-scattering member that catches the droplets of the paint is held by the structure at a distance from the surface to be constructed. How to build the body. The structure includes a columnar portion arranged so as to project upward or diagonally upward from the surface to be constructed.
The method for constructing a layered body according to any one of claims 1 to 3 , wherein the beam portion provided between the intermediate portion or the upper portion of the plurality of columnar portions is provided. The surface portion to be constructed is an upper surface portion of a roof provided along a direction inclined with respect to the horizontal direction.
The fourth aspect of claim 4 , wherein the beam portion has a vertical member arranged substantially along the rafter direction of the roof and a horizontal member arranged substantially along the eaves girder direction of the roof. Construction method of layered body. The connecting portion of at least a part of the plurality of members constituting the structure is provided with an engaging means that automatically engages when the plurality of members to be connected are arranged at predetermined relative positions. The method for constructing a layered body according to any one of claims 1 to 5, which is characteristic.

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