JP2014009535A - Single pipe suspending metal fitting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a single pipe suspending metal fitting capable of minimizing a clearance formed in a main single pipe suspended in a suspended scaffold.SOLUTION: A single pipe suspending metal fitting for suspending a single pipe of a scaffold frame constituting a suspended scaffold comprises: a turn buckle 10 in which screw members 12, 13 inversely threaded to each other are screwed into both ends of a barrel frame 11, respectively; a clamp member 20 connected to one of the screw members of the turn buckle 10 through a connection member 30 and holding a main single pipe SP1; and a ring member 40 connected to the other screw member of the turn buckle 10. After an auxiliary single pipe SP2 is disposed on the main single pipe SP1 held by the clamp member 20 so as to cross the main single pipe SP1 and a scaffold board SB is laid on the auxiliary single pipe SP2, the connection member 30 does not protrude to an upper side of the auxiliary single pipe SP2 and the barrel frame of the turn buckle 10 is positioned above a finish plate EP in a state that the finish plate FP is laid on the scaffold board SB.

Description

  The present invention relates to a single-tube suspension fitting used when constructing a suspension scaffold suspended directly under a roof in a building such as a factory, or directly under a bridge, a viaduct or the like.

  For example, when constructing a suspension scaffold directly under the roof of a factory building with a truss structure, first, as shown in FIG. 6, the scaffold material is lifted up to the construction position of the suspension scaffold by using an aerial work platform PD. The main single pipes 51 are suspended from the pipes P constituting the truss structure frame by the workers on the platform of the work vehicle PD via the chains C, and then orthogonal to the main single pipes 51. The sub-single pipes 52 extending in the direction to be arranged are arranged at regular intervals above the main single pipe 51, and the sub-single pipes 52 and the main single pipes 51 are bound together using orthogonal clamps. When the suspension interval is long, the auxiliary single tube 53 is disposed below the sub single tube 52 at an intermediate position between the adjacent main single tubes 51, and the auxiliary single tube 53 and each sub single tube are used by using an orthogonal clamp. After the scaffold frame is formed by binding 52, the secondary single pipe 5 of this scaffold frame To pass over the scaffolding plate 54, by laying the finishing plate 55 made of concrete formwork plywood thereon and suspended hanging scaffold 50 in a predetermined region immediately below the roof of the building.

  Subsequently, the aerial work vehicle PD is moved to a region adjacent to the suspension scaffold 50 suspended in a predetermined region directly below the roof of the building in this manner, and a new main single pipe is suspended, and then the existing main pipe is suspended. While a new sub-single pipe is connected to the sub-single pipe 52 of the suspension scaffold 50, a new suspension scaffold is connected by the same method as described above, and the suspension scaffold is obtained by sequentially repeating this operation. 50 will be expanded.

JP 2007-231658 A

  However, as described above, when the main single pipe 51 is suspended by the chain C, as shown in FIGS. 7 and 8, as shown in FIGS. There is a problem that a gap S is formed with a certain width in a portion directly above the main single pipe 51 suspended by the chain C.

  In addition, by forming a cut in which the chain C enters the finishing plate 55, most of the gap S generated between the scaffolding plates 54 can be closed by the finishing plate 55. However, in order to form a cut in the finishing plate 55 Will cause new problems such as taking time and effort.

  Then, the subject of this invention is providing the single pipe | tube suspension metal fitting which can make the clearance gap which generate | occur | produces in the main single pipe part suspended in a suspension scaffold as much as possible.

  In order to solve the above-mentioned problem, the invention according to claim 1 is a single unit for suspending a single pipe of a scaffold frame in a suspension scaffold that spans a scaffold plate on a scaffold frame formed by a plurality of single pipes. A tube suspension fitting, wherein the single tube is connected to a turnbuckle in which screw members having mutually opposite threads are screwed into both ends of the body frame, and to one of the screw members of the turnbuckle via a connecting member A clamp member for gripping and a latch fitting connected to the other screw member of the turnbuckle, the connecting member having two orthogonal rotation shafts, and one screw member being one of the screw members The clamp member is coupled to the connection member so as to be rotatable about a rotation axis, and the clamp member is coupled to the connection member so as to be rotatable about the other rotation axis. Tube In the state where the upper single pipe is arranged on the side so as to intersect the lower single pipe, and the scaffolding plate is stretched over the upper single pipe, the connecting member projects above the upper single pipe. In addition, the present invention provides a single-tube suspension fitting in which the trunk frame of the turnbuckle is positioned above the scaffold plate.

  The invention according to claim 2 suspends a single pipe of a scaffold frame in a suspension scaffold in which a scaffold board is hung on a scaffold frame formed by a plurality of single pipes and a finishing board is laid on the scaffold board. A single-tube suspension fitting for installing a turnbuckle having screw members screwed in opposite directions at both ends of a body frame, and connected to one of the screw members of the turnbuckle via a connecting member A clamp member for gripping the single pipe, and a locking fitting connected to the other screw member of the turnbuckle, wherein the connection member has two orthogonal rotating shafts, A screw member is coupled to the connection member so as to be rotatable about one rotation axis, and the clamp member is coupled to the connection member so as to be rotatable about the other rotation axis, and is gripped by the clamp member Was A state in which a scaffolding board is hung on a scaffolding frame in which an upper single pipe is arranged so as to intersect with a lower single pipe, and a finishing board is laid on the scaffolding board. Then, there is provided a single pipe hanging metal fitting in which the connecting member does not protrude above the scaffold plate, and the trunk frame of the turnbuckle is positioned above the finishing plate. To do.

  Moreover, the invention which concerns on Claim 3 is a single pipe | tube hanging bracket of the invention which concerns on Claim 1 WHEREIN: The said turn buckle protrudes the radial direction outer side in the edge part inside the said trunk | frame frame in each said screw member. A stopper member is attached.

  As described above, in the single-tube suspension fitting according to the first aspect of the present invention, the clamp member that holds the single tube is connected to one screw member of the turnbuckle via the connection member, and is held by the clamp member. In the state where the upper single pipe is arranged on the upper side of the lower single pipe so as to intersect the lower single pipe, and the scaffolding plate is stretched over the upper single pipe, the connecting member is connected to the upper single pipe. The trunk frame of the turnbuckle is positioned above the scaffolding plate without overhanging the upper side, so when hanging the scaffolding plate on the upper single pipe, the scaffolding plate is attached to one side of the turnbuckle. By arranging so as to be in contact with the shaft portion of the screw member, the gap formed in the portion directly above the lower single pipe can be suppressed to a width about the diameter of the shaft portion of the screw member.

  In the single pipe suspension fitting of the invention according to claim 2, the clamp member that holds the single pipe is connected to one screw member of the turnbuckle via the connection member, and the lower single unit that is held by the clamp member. In the state where the scaffolding board is hung on the scaffolding frame where the upper single pipe is arranged to intersect the lower single pipe on the upper side of the pipe and the finishing board is laid on the scaffolding board, Since the member does not protrude above the scaffolding plate and the trunk frame of the turnbuckle is positioned above the finishing plate, the finishing plate is turned when laying the finishing plate on the scaffolding plate. By disposing the buckle so as to be in contact with the shaft portion of one screw member, the gap formed in the portion directly above the lower single pipe can be suppressed to a width about the diameter of the shaft portion of the screw member. .

  As described above, when the single pipe suspension fitting of the invention according to claim 1 or 2 is used, the gap formed in the portion directly above the lower single pipe is considerably smaller than the gap formed in the conventional suspension scaffold. So, it is possible to close the gap by sticking gum tape etc. to the finish plate on both sides so as to straddle the formed gap, and in order to close the large gap formed as before, There is no need to perform troublesome operations such as forming cuts on the finishing plate.

  Further, in the single pipe suspension fitting of the invention according to claim 1 or 2, the connecting member connecting one screw member of the turnbuckle and the clamp member has two orthogonal rotating shafts, and one screw Since the member is coupled to the connection member so as to be rotatable about one rotation axis, and the clamp member is coupled to the connection member so as to be rotatable about the other rotation axis, the single pipe gripped by the clamp member Can be suspended obliquely from any direction around the other rotation axis, and the degree of freedom of suspension can be increased.

  Moreover, since the stopper member which protrudes the radial direction outer side is attached to the edge part inside the trunk frame in each screw member of the turnbuckle, the single pipe suspension metal fitting of the invention concerning Claim 3 is attached to each screw member. Does not come off the torso frame, improving safety.

(A) is a front view which shows one Embodiment of the single pipe suspension metal fitting which concerns on this invention, (b) is a side view which shows the single pipe suspension metal fitting same as the above. It is process drawing for demonstrating the construction method of the suspension scaffold using a single pipe suspension metal fitting same as the above. It is process drawing for demonstrating the construction method of the suspension scaffold using a single pipe suspension metal fitting same as the above. It is process drawing for demonstrating the construction method of the suspension scaffold using a single pipe suspension metal fitting same as the above. It is explanatory drawing for demonstrating the other usage method of the single pipe | tube suspension metal fitting same as the above. It is explanatory drawing for demonstrating the construction method of the conventional suspension scaffold. It is a side view for demonstrating the suspension method of the main single pipe in the construction method of a suspension scaffold same as the above. It is a top view for demonstrating the suspension method of the main single pipe in the construction method of a suspension scaffold same as the above.

  Hereinafter, embodiments will be described with reference to the drawings. Fig.1 (a), (b) has shown the single pipe | tube suspension metal fitting 1 which concerns on this invention. As shown in the figure, the single pipe suspension bracket 1 is for suspending a single pipe of a scaffold frame in a suspension scaffold in which a scaffold plate is suspended on a scaffold frame formed by a plurality of single pipes. A turnbuckle 10 having screw members 12 and 13 screwed in opposite directions at both ends of the body frame 11, and a single screw member 12 of the turnbuckle 10 connected via a connecting member 30; The clamp member 20 that holds the pipe SP and the ring member 40 connected to the other screw member 13 of the turnbuckle 10 are configured.

  The turnbuckle 10 is formed with bolt insertion holes at the outer ends of the screw members 12 and 13, respectively, and at the inner ends of the screw members 12 and 13 located inside the body frame 11, Stopper pins 14 are fixed in such a manner as to slightly protrude radially outward from the outer periphery.

  The connecting member 30 includes a U-shaped bracket 31 in which a pair of left and right standing pieces 33 rises from both side edges of the lower piece 32, and bolts formed on the clamp member 20 and the lower piece 32 of the U-shaped bracket 31, respectively. By screwing the nut 35 through the bolt 34 into the insertion hole, the clamp member 20 is connected to the U-shaped bracket 31 so as to be rotatable about the bolt 34 as a rotation axis, and the outer end of the one screw member 12 of the turnbuckle 10. While the bolt 36 is inserted into the bolt insertion hole formed in the screw member 12, the bolt 36 is passed through the hole formed in the pair of left and right standing pieces 33 and the nut 37 is screwed in. Are connected to the U-shaped metal fitting 31 in a rotatable manner.

  The ring member 40 has a bolt insertion hole formed at the base end thereof, and the ring member 40 while inserting the bolt 41 through the bolt insertion hole formed at the outer end of the other screw member 13 of the turnbuckle 10. By screwing the nut 42 through the bolt 41 through the bolt insertion hole, the ring member 40 is connected to the screw member 13 so as to be rotatable about the bolt 41 as a rotation axis.

  A method for constructing a suspension scaffold using the single-tube suspension fitting 1 configured as described above will be described below. For example, when constructing a suspension scaffold directly under the roof of a truss structure factory building, first, as shown in FIG. 2, a chain C passed through the ring member 40 of the single pipe suspension bracket 1 is used as a framework of the truss structure. The main single pipe SP1 is held in a truss structure by holding the main single pipe SP1 with the clamp member 20 in a state where the single pipe hanging bracket 1 is suspended by being hung on and connected to each pipe constituting the main body. The height of the main single pipe SP1 is adjusted by suspending from each constituent pipe and rotating the trunk frame 11 of the turnbuckle 10. By repeating the same operation, the plurality of main single pipes SP1 are suspended at predetermined intervals at predetermined intervals.

  Next, as shown in FIG. 3, a plurality of sub-single pipes SP2 are arranged on the upper side of the plurality of main single pipes SP1 suspended at predetermined intervals in this manner so as to be orthogonal to the main single pipe SP1. A plurality of main single pipes are arranged by binding the main single pipe SP1 and the sub single pipe SP2 using the orthogonal clamp CC at the intersection between the main single pipe SP1 and the sub single pipe SP2 at a predetermined interval. A scaffold frame in which SP1 and the plurality of secondary single tubes SP2 are orthogonal to each other is formed.

  Subsequently, the scaffolding plate SB is stretched over the upper secondary pipe SP2 constituting the scaffold frame. When the scaffold frame is suspended, one screw member 12 and the clamp member 20 of the turnbuckle 10 are provided. Is connected to the upper sub-single pipe SP2 so that it does not protrude from the upper side of the upper sub-single pipe SP2, as shown in FIG. After the scaffolding board SB is disposed in a state where it is brought into contact with both sides, a finishing board FP made of a concrete panel is laid on the scaffolding board SB.

  In this state, as shown in the figure, since the body frame 11 of the turnbuckle 10 is positioned above the finishing plate FP, the shaft portion of one screw member 12 of the turnbuckle 10 is also provided for the finishing plate FP. In the suspended portion of the main single pipe SP1 hung by using the single pipe hanging bracket 1, the shaft of one screw member 12 of the turnbuckle 10 can be disposed. A gap corresponding to the diameter of the part is formed.

  Finally, when the gap is closed by sticking a gum tape or the like to the finishing plate FP on both sides so as to straddle the formed gap, the suspension scaffold is completed.

  As described above, when a suspension scaffold is constructed using the single pipe suspension bracket 1, when the scaffold board SB is stretched over the secondary single pipe SP2, or when the finishing board FP is laid on the scaffold board SB, By disposing the scaffolding plate SB and the finishing plate FP so as to abut against the shaft portion of one screw member 12 of the turnbuckle 10, a gap formed in a portion immediately above the lower main single pipe SP1 is formed by the screw member. The width of the shaft portion can be reduced to about 12 and can be made considerably smaller than the gap formed in the conventional suspension scaffold, so that the gap can be closed with gummed tape as described above. Thus, unlike the conventional case, it is not necessary to perform a troublesome operation of forming a cut in the finishing plate in order to close the formed large gap, and the suspension scaffold can be efficiently constructed.

  Further, in the single-tube suspension fitting 1, the connection member 30 that connects one screw member 12 of the turnbuckle 10 and the clamp member 20 has two orthogonal rotation shafts (bolts 34 and 36), One screw member 12 is coupled to the connecting member 30 so as to be rotatable about one rotating shaft (bolt 36), and the connecting member 30 is capable of rotating the clamp member 20 around the other rotating shaft (bolt 34). For example, as shown in FIG. 5, the main single pipe SP <b> 1 gripped by the clamp member 20 can be suspended obliquely from any direction around the other rotating shaft (bolt 34). This has the effect of increasing the degree of freedom of suspension.

  In addition, the single pipe suspension fitting 1 is in a state in which it slightly protrudes radially outward from the outer periphery at the inner end portion located inside the trunk frame 11 in each screw member 12, 13 of the turnbuckle 10. Since the stopper pins 14 are fixed to each other, the screw members 12 and 13 are not detached from the body frame 11 and the safety is high.

  In the above-described embodiment, in a state where the scaffolding frame is suspended, the connection member 30 that connects the one screw member 12 of the turnbuckle 10 and the clamp member 20 is located above the upper sub-single pipe SP2. However, the present invention is not limited to this, and the dimension is set so that it does not protrude above the scaffold plate SF disposed on the sub-single pipe SP2. And, at least for the finishing plate FP positioned at the uppermost position, the gap can be suppressed to a width of about the diameter of the shaft portion of the screw member 12, so that the same effect as that of the single pipe hanging bracket 1 described above can be obtained. Can do.

  Moreover, in each embodiment mentioned above, since it is a single pipe suspension metal fitting used for the type of suspension scaffold which lays the finishing board FP on the scaffolding board SF, the trunk frame of the turnbuckle 10 is located above the finishing board FP. However, since the finishing plate FP does not necessarily need to be laid, in the case of a suspension scaffold of a type that does not lay the finishing plate, one of the screw members 12 of the turnbuckle 10 and The connecting member 30 that connects the clamp member 20 is set so as not to protrude above the upper secondary pipe SP2 and so that the trunk frame 11 of the turnbuckle 10 is positioned above the scaffold plate SF. Just keep it.

  Moreover, in each embodiment mentioned above, although the clamp member 20 which grips a round pipe is used, it is not limited to this, When using a square pipe for a scaffold frame, the clamp member for square pipes Needless to say, you can use.

  Moreover, in each embodiment mentioned above, although the ring member 40 is connected to the other screw member 13 of the turnbuckle 10, it is not limited to a ring member and various kinds, such as a hook member, are needed as needed. What is necessary is just to connect a latching metal fitting.

  Moreover, in each embodiment mentioned above, although the clearance gap formed in the part immediately above main single pipe SP1 is obstruct | occluded with the gum tape, it is not limited to this, It is also possible to abbreviate | omit a gum tape.

  The single pipe suspension fitting of the present invention can be used when constructing a suspension scaffold installed directly under a roof in a building such as a factory, or directly under a bridge, a viaduct or the like.

DESCRIPTION OF SYMBOLS 1 Single pipe | tube hanging bracket 10 Turn buckle 11 Trunk frame 12, 13 Screw member 14 Stopper pin 20 Clamp member 30 Connection member 31 U-shaped bracket 32 Lower piece 33 Standing piece 34, 36 Bolt 35, 37 Nut 40 Ring member 41 Bolt 42 Nut C Chain CC Right angle clamp SP Single pipe SP1 Main single pipe SP2 Secondary single pipe SB Scaffolding plate FP Finishing plate

Claims (3)

A single-tube suspension fitting for suspending a single tube of a scaffold frame in a suspension scaffold that spans a scaffold plate on a scaffold frame formed by a plurality of single tubes,
Turnbuckles in which screw members of mutually reverse screws are respectively screwed into both ends of the body frame;
A clamp member for gripping the single pipe, connected to one of the screw members of the turnbuckle via a connection member;
A locking bracket connected to the other screw member of the turnbuckle,
The connecting member has two orthogonal rotating shafts, and one of the screw members is coupled to the connecting member so as to be rotatable about one rotating shaft, and the clamp member is centered on the other rotating shaft. Is connected to the connecting member so as to be rotatable.
On the upper side of the lower single pipe gripped by the clamp member, the upper single pipe is disposed so as to intersect the lower single pipe, and in a state where the scaffolding plate is stretched over the upper single pipe, A single-tube suspension fitting, wherein the connecting member does not protrude above the upper single-tube, and the trunk frame of the turnbuckle is positioned above the scaffold plate. This is a single-tube suspension fitting for suspending a single pipe of a scaffolding frame in a suspension scaffold that spans a scaffolding board on a scaffolding frame formed by a plurality of single pipes and lays a finishing board on the scaffolding board. And
Turnbuckles in which screw members of mutually reverse screws are respectively screwed into both ends of the body frame;
A clamp member for gripping the single pipe, connected to one of the screw members of the turnbuckle via a connection member;
A locking bracket connected to the other screw member of the turnbuckle,
The connecting member has two orthogonal rotating shafts, and one of the screw members is coupled to the connecting member so as to be rotatable about one rotating shaft, and the clamp member is centered on the other rotating shaft. Is connected to the connecting member so as to be rotatable.
A scaffolding plate is hung on a scaffolding frame in which an upper single tube is arranged so as to intersect the lower single tube on the upper side of the lower single tube held by the clamp member, In the state in which the finishing plate is laid, the connecting member does not protrude above the scaffold plate, and the trunk frame of the turnbuckle is positioned above the finishing plate. Single pipe hanging bracket.   The single-tube suspension fitting according to claim 1 or 2, wherein a stopper member protruding outward in the radial direction is attached to an end portion of each screw member on the inner side of the body frame.

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