JPH0678519U - Floor opening curing device - Google Patents

Abstract

(57) [Abstract] [Purpose] To facilitate the assembly and dismantling of a curing device for a floor opening provided with a safety net in a short time, and to open and close the safety net promptly. [Structure] A column support member 10 is arranged around an opening 2, and a standardized unit partition member 3 is erected in a state in which columns 4 and 4 on both sides are inserted and supported by the column support member 10. A rail 13 having a quadrangular safety handrail that surrounds the opening 2 is provided, and a rail connecting means 14 is provided on the upper end side of the safety handrail on two sides facing each other with the opening 2 interposed therebetween. Attachment, the net receiving member 22 provided with the post connecting means 23 by fitting is attached to the upper ends of the other two sides of the safety handrail, and the safety net 27 faces the slider 28 supported by the rail 13. While connecting the two sides, the other two sides of the safety net 27 are connected to the net receiving member 2
Releasably connect to 2.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a floor opening curing device.

[0002]

[Prior art]

 When forming an opening in the floor slab molding form for hanging or unloading materials with a tower crane, etc., as a curing device to prevent accidents due to the fall of workers or accidents due to flying drops of tools, etc. It is necessary to install a safety handrail around the floor opening and to stretch a safety net on the safety handrail so that the safety net can be opened and closed.

However, in the conventional curing device for the floor opening, sheath-shaped single pipe supporting members are installed around the opening of the floor slab molding frame at predetermined intervals, and the single pipe supporting member is provided with handrails. Insert the single pipes for the columns, connect the single pipes for handrails to these single pipes by using a large number of clamp hardware, and further, to these single pipes, a curing frame or a scaffold that has been laid down sideways. A square safety railing that surrounds the opening is constructed by binding plates together, while a pair of wire ropes are stretched between the upper ends of the two sides of the safety railing that sandwich the opening. , The two opposite sides of the safety net are connected to a large number of connecting rings slidably supported by the wire rope, and the other two sides of the safety net are used for the other two sides of the safety handrail. Use a rope or wire to release the single pipe I had the following problems because I was motivated.

In the above-mentioned curing device, since many temporary materials such as single pipes and clamp metal fittings are used, the number of members is large, and assembly and dismantling are troublesome. is necessary. Assembling work of a curing device configured by connecting single pipes is considered to be the scope of defense for Toba workers, but in the current situation where shortage of professionals and aging are problems, carpenters use formwork. It is difficult to arrange a heterogeneous technician so that the work to assemble the curing device at the opening can be started immediately after the work is completed.Therefore, the work to assemble the curing device is started from the completion of the formwork work. By the way, there is often a gap. It is necessary to open the safety net prior to unloading using the opening and then close the safety net again after unloading is completed. The work of opening and closing the safety net cannot be performed promptly because the end of the single pipe is easily caught. Especially when there is only one worker, opening and closing the safety net is very troublesome. As a result of, the unsecured time becomes longer and there is a problem in terms of safety.

[0005]

[Problems to be solved by the device]

 The present invention has been made in view of such circumstances, and it is easy to assemble and dismantle and remove in a short time, and the safety net is capable of opening and closing the opening promptly. The main purpose is to provide a curing device for the opening.

Another object of the present invention is to facilitate the handling of the partition member used in the above-mentioned floor surface opening curing device during transportation and mounting, and to make the partition member an extensible member. If a mesh-like member such as a banded metal or a welded wire mesh is damaged, the replacement work can be performed easily and safely.

[0007]

[Means for Solving the Problems]

 The technical means taken by the present invention to achieve the above object are as follows. That is, the floor opening curing device according to the first aspect of the present invention is provided with a plurality of column supporting members at predetermined intervals around the opening formed in the floor slab molding frame, and a plurality of standardized units. A plurality of partition members are erected in a state in which columns on both sides thereof are inserted and supported by the column support member to form a square-shaped safety handrail that surrounds the opening, and face each other across the opening. Attach the rails with the pillar connecting means by fitting to the upper ends of the safety handrails on the two sides, and install the pillar connecting means by fitting on the upper ends of the safety rails on the other two sides. A safety net is attached to the slider, and two opposite sides of the safety net are connected to a slider movably supported on the rail, and the other two sides of the safety net are releasably connected to the net receiving member. It is characterized by There.

According to a second aspect of the invention, in the above-mentioned floor surface opening curing device, the partition member is composed of a frame and a net panel detachable from the frame, and the net panel is connected to the frame. It is configured to be detachable from the outside.

[0009]

[Action]

 According to the above structure, the column supporting member is fixed at a predetermined position around the opening, the column of the partition member is inserted into the column supporting member, and the adjacent column members are supported by the column connecting means provided on the rail and the net receiving member. It is possible to assemble the curing device for the opening by connecting the upper parts of the columns of the safety net to each other, connecting two opposite sides of the safety net to the slider, and connecting the other two sides of the safety net to the net receiving member. The curing device can be dismantled and removed in reverse order.

Further, since the two opposite sides of the safety net are connected to the slider that is movably supported by the rail, there is no risk of the safety net being caught by another object, and the rail length of the safety net is long. By opening and closing the connection between the one end in the direction and the net receiving member, the opening / closing operation of the safety net can be performed smoothly and promptly.

In particular, according to the structure of the second aspect, since the partition member is composed of the frame and the net panel which can be attached to and detached from the frame, the weight of the unit can be reduced by separating them. It is lightweight and easy to handle during transportation and mounting. Moreover, since the net panel is configured to be detachable from the outside of the skeleton, if a net panel is damaged due to contact with another object, a partition member is placed from the outside, that is, around the opening on the floor. It is possible to remove only the damaged net panel and replace other net panels from the side opposite to the floor opening in the upright state, and there is no need to attach or remove frames, rails, net receiving members, etc. .

[0012]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a curing device for an opening of a floor according to the first invention, and FIGS. 2 to 8 show the details of the main part thereof. In these figures, 1 is a floor slab molding form, and an opening 2 is formed for unloading.

Reference numeral 3 is a partition member that is standardized into a fixed size (for example, height 1100 mm, length 1800 mm). The partition member 3 includes pillars 4 and 4 made of square pipes located on both sides and having upper ends opened, and a pair of upper and lower horizontal members 5 and 5 erected on the upper and lower sides of both pillars 4 and 4. It is composed of a reinforcing intermediate cubic 6 provided between the longitudinal intermediate portions of both the horizontal members 5, 5 and an expanded metal 7 stretched around the portions surrounded by these 4, 5, 6. The outer peripheral side of the lower side of each of the columns 4 and 4 has a U-shaped skirting board holding member for inserting and holding the skirting board 8 at an appropriate time after the floor slab S is concrete-cast. 9 is fixed.

Reference numeral 10 denotes a pillar supporting member having a height approximately equal to the thickness of the floor slab S, and the above-mentioned mold is attached to the lower end of a rectangular cylindrical member 11 to which the two pillars 4 are fitted together in a tie state. The frame 1 is formed by connecting a flange member 12 to which a nail a is fixed. Then, a predetermined number of the column support members 10 are arranged around the opening 2 at a pitch corresponding to the length of the partition member 3, and the columns 4, 4 of the partition member 3 are sequentially arranged adjacent to the column support member 10. The partition member 3 is erected around the opening 2 by being inserted and supported, and the rectangular shape surrounding the opening 2 (in the illustrated embodiment, the partition member 3 has a rectangular shape and three partitions on the long side). The member 3 is used, and two partition members 3 are used on the short side.) To form a safety handrail. The pillar support member 10 is buried in the concrete of the floor slab S and is not normally diverted.

Reference numeral 13 is a rail detachably attached to the upper ends of the two-sided safety handrails facing each other with the opening 2 interposed therebetween. The rail 13 has approximately the same length as the partition member 3 and has a U-shaped cross section in which the edges b, b are bent inward, and one end of the rail 13 is fitted with a strut connecting means 14 And a rail connecting means 15 by fitting, and two holding members 16 engaged with and held by the horizontal member 5 on the upper side of the partition member 3 are provided in the longitudinal intermediate portion. ing. The rail 13 at one end of the plurality of rails 13 is also provided with a strut connecting means 14 at the other end.

As shown in FIGS. 2 and 3, the pillar connecting means 14 adjoins two connecting bodies 17, 17 that are fitted and held inside the openings at the upper ends of the adjacent pillars 4, 4. The partition member 3 is formed so as to project from the lower surface of a locking member 18 which is disposed so as to straddle the upper ends of the columns 4 and 4 of the partition member 3. As shown in FIGS. 2 and 4, the rail connecting means 15 has a U-shaped member 19 with a locking portion c for locking the bent edge b of another rail 13 to be connected. The nut 20 is fixed so as to be concentric with the hole formed in the upper surface of the U-shaped member 19, and a bolt 21 for pressing the upper surface of another rail 13 to be connected is screwed into the nut 20. The U-shaped member 19 is externally fitted to the rail 13 with one end side of the rail 13 slightly retracted, and the U-shaped member 19 is engaged with the rail 13 and the locking member 18. It is stuck to and.

Reference numeral 22 denotes a net receiving member that is detachably attached to the upper ends of the other two sides of the safety handrail that face each other with the opening 2 interposed therebetween, and is provided with a plurality of net locking hooks d. I have it. The net receiving member 22 is engaged with and held by a pillar connecting means (not shown in detail, but has the same structure as the pillar connecting means 14 on the rail 13 side) 23 and a horizontal member 5 on the upper side of the partition member 3. A plurality of holding members 24 are attached to the central portion of a U-shaped member 25 having a length corresponding to the two partition members 3 and both sides thereof with bolts (see FIG. 5) 26, respectively, and The hook d is provided on each of the column connecting means 23 and the holding member 24.

Numeral 27 is a safety net made of, for example, Russell knitted polyester and having a mesh of about 15 mm square, and as shown in FIG. 4, the two sides facing each other are along the rail 13. A movable slider 28 is connected via a ring 29, and on the other two sides, as shown in FIG. 5, a connection of a cremona rope, a steel rod, a steel pipe, etc., which is releasably connected to the hook d. A tool 30 is provided. Reference numeral 31 is an operation rope connected to the connecting tool 30.

The procedure of the assembling work of the curing device for the floor opening having the above-mentioned configuration is as follows. The column support member 10 is nailed to a predetermined position around the opening 2 of the formwork 1. The columns 4, 4 of the partition member 3 on the long side are inserted into the column support member 10. Attach the rail 13. The rails 13 are attached in order from the end rails 13 provided with the strut connecting means 14 on both sides. Specifically, first, the connecting bodies 17 and 17 in the pillar connecting means 14 of the first rail 13 are dropped into the upper end openings of the adjacent pillars 4 and 4 of the adjacent partition members 3 and 3 on the long side. Connect the columns 4 and 4. Then, with the bolts 21 of the rail connecting means 15 of the first rail 13 slightly relaxed, the ends of the second rail 13 are connected to the U-shaped members 19 of the rail connecting means 15 of the first rail 13. While inserting, the connecting bodies 17, 17 of the column connecting means 14 provided on the second rail 13 are dropped into the upper end openings of the columns 4, 4 adjacent to the next adjacent partition members 3, 3. Next, similarly, while inserting the end portion of the third rail 13 into the U-shaped member 19 of the rail connecting means 15 of the second rail 13, the connection of the third rail 13 by the rail connecting means 15 is performed. One of the bodies 17, 17 is dropped into the upper end opening of the column 4 at the end. In this state, the slider 28 is inserted into the rail 13. Two sides of the safety net 27 are connected to the slider 28. The columns 4 and 4 of the partition member 3 on the short side are inserted into the column support member 10. This work is performed with the end of the rail 13 slightly lifted, and after inserting the supports 4 and 4 into the support support member 10, the connecting body 17 located at the end of the third rail 13 and the first rail 13 are connected. The connecting body 17 located on the other end side of the roll 13 is dropped into the upper end openings of the columns 4 and 4 located on both ends of the short side. The net receiving member 22 is attached to the partition member 3 on the short side, and the other two sides of the safety net 27 are locked to the hook d of the net receiving member 22. In this case, the safety net 27 may be directly locked to the hook d, but as shown in FIG. 5, it is preferable to lock the safety net 27 via a connector 30 such as a crepe rope.

According to the above configuration, since the curing device is configured using the standardized unitized partition member 3, the number of members can be reduced as compared with the case where a single pipe is connected. Since the curing device can be easily assembled and disassembled and removed in a short time, and can be easily assembled by anyone, even after the formwork, carpenters can construct the curing device. It will be possible.

Further, since the safety net 27 is connected to the slider 28 which is movable along the rail 13, the opening / closing operation of the safety net 27 can be smoothly performed.

In particular, in the illustrated embodiment, a connecting tool 30 such as a Cremona rope is provided at the end of the safety net 27, and the connecting tool 30 is engaged with the hook d of the net receiving member 22. Engagement / disengagement operations with respect to a large number of hooks d can be efficiently performed at once. However, when the safety net 27 is opened / closed, by holding the connecting tool 30 or the operating rope 31 connected thereto, Both ends of the safety net 27 can be moved uniformly with respect to the rails 13, and even a single worker can easily and promptly open and close the safety net 27.

In the embodiment, as shown in FIG. 4, a hook d is provided on the outer surface of the U-shaped member 19 for holding the rail 13, which is a holding member 24 for the net receiving member 22. This is because it is also used as, and is completely unnecessary in terms of configuration. Instead of the expanded metal 7, a resin net, a welded wire net, a resin plate, a metal plate or the like may be used. Although not shown in the figure, in addition to the partition member 3 described above, if a partition member 3 that is standardized into a half length is prepared, a curing device having dimensions corresponding to the openings 2 of various sizes can be constructed. You can

9 to 13 show a partition member 3 used in a floor surface opening curing device according to the second invention. A feature of the second invention is that the partition member 3 is composed of a skeleton 3A and a net panel 3B which is detachable from the skeleton 3A, and the net panel 3B is attached to the skeleton 3A from the outside, that is, the floor surface. The partition member 3 is erected around the opening 2 and is detachable from the side opposite to the floor opening 2.

The frame 3A shown in the figure is composed of columns 4 and 4 on both sides, a pair of upper and lower horizontal members 5, 5, an intermediate cuboid 6, a skirting board holding member 9, etc., and the net panel 3B has a rectangular shape. It is composed of an eggplant peripheral frame 32, an intermediate reinforcing frame 33, and an expanded metal 7 stretched around a portion surrounded by them.

Although the attachment structure of the net panel 3B to the frame 3A can be set as appropriate, this embodiment adopts the following attachment structure so that the attaching / detaching operation of the net panel 3B can be easily performed with one touch.

That is, the panel receivers 34, 34, which also serve as reinforcing plates provided between the both ends of the upper horizontal member 5 and the upper ends of the columns 4 and 4 in the frame 3 A, respectively, project in the projecting direction around the fulcrum P. Gravity lock 36 having a known structure (the same structure as the brace attachment gravity lock provided on the building frame of the frame scaffolding) having swing-biased retaining pawls 35 is projected and the lower horizontal member 5 is provided. A pair of front and back panel receivers 37a, 37b are provided on the upper surface of the device in the vicinity of both ends with appropriate gaps respectively, and a panel receiver 38 is provided in the middle portion with an appropriate gap between the panel holders 37a and 37b. It is provided.

On the other hand, the net panel 3B is provided with reinforcing plates 40, 40 each having a through hole 39 for inserting a gravity lock formed at both corners above the peripheral frame 32. Then, with the lower side portion of the net panel 3B inserted into the gap between the panel receivers 37a and 37b and the gap between the intermediate cuboid 6 and the panel receiver 38, the upper side of the net panel 3B is pressed against the frame 3A side. The gravity lock 36 is inserted into the through hole 39, and the retaining claw 35 is configured to engage with the edge of the through hole 39. Reference numeral 41 is a reinforcing plate provided at both corners below the peripheral frame 32 of the net panel 3B.

According to the above configuration, when the partition member 3 is transported, the weight of the partition unit 3 can be reduced by separating the frame 3A and the net panel 3B, and the partition member 3 is placed on the floor. Even when the frame 3A is installed around the opening 2, the frame 3A can be installed upright and the net panel 3B can be attached to the frame 3A to form the partition member 3, which is easy to carry and install. .

In particular, since the net panel 3B is configured to be attachable to and detachable from the frame 3A from the outside, when the expanded metal 7 of the net panel 3B is damaged due to contact with another object, , The frame 3A is erected around the opening 2 on the floor through the pillar support member 10, and only the damaged net panel 3B is removed from the side opposite to the floor opening 2, The net panel 3B can be replaced, and it is not necessary to attach or remove the rail 13 and the net receiving member 22 as well as the frame 3A. Therefore, the replacement work of the net panel 3B can be performed easily and safely from the outside, and the time when the net panel 3B is removed can be shortened as much as possible, so that the safety is not impaired. It should be noted that instead of the expanded metal 7, a resin net, a welded wire mesh, a resin plate, a metal plate, etc. may be used. In addition to the partition member 3 described above, a partition member 3 standardized to half the length is prepared. As a matter of fact, it is the same as the first embodiment of the invention that a curing device having dimensions corresponding to the openings 2 of various sizes can be constructed.

[0031]

[Effect of device]

 According to the first aspect, there is an effect that anyone can easily assemble and dismantle the opening curing device and dismantle and quickly open and close the safety net. According to claim 2, the partition member can be easily transported and handled at the time of mounting, and when the mesh member such as the expanded metal or the welded wire mesh forming the partition member is damaged, the replacement work can be performed easily and safely. There is an effect that can be done.

[Brief description of drawings]

FIG. 1 is an overall perspective view of a floor opening curing device according to a first invention.

FIG. 2 is an exploded perspective view of a main part.

FIG. 3 is a front view of a main part.

FIG. 4 is a sectional view of a main part.

FIG. 5 is a cross-sectional view showing a connected state of the safety net to the net receiving member.

6 is a cross-sectional view taken along the line AA of FIG.

7 is a cross-sectional view taken along the line BB of FIG.

8 is a cross-sectional view taken along the line CC of FIG.

FIG. 9 is a partially cutaway perspective view of a partition member used in the floor surface opening curing device according to the second invention.

FIG. 10 is a front view of the skeleton.

FIG. 11 is a front view of the net panel.

FIG. 12 is a cross-sectional view of a main part.

FIG. 13 is a cross-sectional view of a main part.

[Explanation of symbols]

1 ... Formwork, 2 ... Opening, 3 ... Partitioning member, 3A ... Frame,
3B ... Net panel, 4 ... Strut, 10 ... Strut support member,
13 ... Rail, 14 ... Strut connecting means, 15 ... Rail connecting means, 22 ... Net receiving member, 23 ... Strut connecting means, 2
7 ... Safety net, 28 ... Slider.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shigeyuki Kinoshita 4-1-1 Hommachi, Chuo-ku, Osaka Stock company Takenaka Corporation Osaka Main Store (72) Inventor Takamitsu Utsumi 4-1-1 Hommachi, Chuo-ku, Osaka No. 13 Takenaka Corporation Osaka Main Store (72) Inventor Kenzo Komaki 4-1-1 Hommachi, Chuo-ku, Osaka City Stockholder Takenaka Corporation Osaka Main Store (72) Inventor Ryuji Arima Honmachi, Chuo-ku, Osaka 4-1-13-1 Takenaka Corporation Osaka Main Store (72) Inventor Kazuyuki Arakawa 4-1-13-1 Honmachi, Chuo-ku, Osaka City Incorporated Takenaka Corporation Osaka Main Store (72) Inventor Nori Shimizu Hisashi 4-13-1 Honmachi, Chuo-ku, Osaka-shi Takenaka Corporation Stock Company, Osaka Main Store (72) Creator Yoshiaki Iwamoto 4-1-1-13, Honmachi, Chuo-ku, Osaka City Takenaka Corporation This store

Claims (2)

[Scope of utility model registration request] 1. A plurality of support members are provided around an opening formed in a floor slab molding frame at predetermined intervals, and a plurality of standardized partition members are provided.
The struts on both sides of them are erected in a state of being inserted and supported by the stanchion support member to form a square-shaped safety handrail that surrounds the opening, and safety hands on two sides facing each other across the opening. A rail provided with a strut connecting means by fitting is attached to the upper end side of the slide, and a net receiving member having a strut connecting means by fitting is attached to the upper end side of the other two sides of the handrail. A floor characterized in that two opposite sides of a safety net are connected to a slider movably supported by rails and the other two sides of the safety net are releasably connected to the net receiving member. Curing device for surface opening. 2. The partition member comprises a skeleton and a net panel detachable from the skeleton, and the net panel is configured to be detachable from the skeleton from the outside. 1. A floor opening curing device according to 1.