JP5486855B2 - Floor joint hardware for building work, building work floor frame using the same, and building work floor using the same - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a floor joint hardware for building work, a floor frame for building work using the same, and a floor for building work using the same, and in particular, a floor opening is closed during building work to form a scaffold. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor joint hardware for building work, a floor frame for building work using the same, and a floor for building work using these.

When building a building, a temporary floor is often installed as a scaffold for construction workers.
Since such a floor is temporary, it is easy to assemble and disassemble and requires sufficient strength to support the weight of workers, building materials, and the like.
In addition, various types of floors that serve as scaffolds have been proposed depending on the application and installation location (see, for example, Patent Document 1).

Patent Document 1 discloses a temporary scaffold for steel construction.
In the temporary scaffold for steel frame construction described in Patent Document 1, a reach frame and a movable frame supported in a horizontal state are rotatably connected to a lower end portion of the reach frame.
An out frame that slides in a direction orthogonal to the movable frame is supported, and a tread is placed and fixed on the out frame.
Thus, since the scaffold is formed, when the reach frame is attached, the architectural scaffold can be arranged on the out frame.

JP 2003-314054 A

As described above, according to the technique according to Patent Document 1, it is possible to create a work floor serving as a scaffold in a steel construction site.
However, there is a need for a technique that can create such a scaffold more easily.
Also, when floor openings for indoor staircases and atriums are planned in buildings, during construction work, workers fall from the floor openings, and scaffolds for wall and ceiling construction around the floor openings However, according to the technique described in Patent Document 1, it is difficult to easily close such a floor opening.

Further, as a method for creating a work floor by closing such a floor opening, a wooden or steel square called a butter corner is laid and a plywood such as a concrete panel is placed and fixed thereon. There is a method, and in this case, a stepladder or the like is arranged on a plywood such as a concrete panel for an upper work such as a wall and a ceiling around the floor opening.
However, the flutter corners, concrete panels, and the like that constitute the work floor are not fastened to the building body (or a slight temporary fix), and the possibility of misalignment cannot be denied.
For this reason, it is possible to easily install the apparatus, and it is desired to provide a work floor that is prevented from being displaced and has good workability.

  An object of the present invention is to solve the above-described problems, and can be easily installed, and can be used as a scaffold for building work, which can be used as a scaffold by closing a floor opening, and a building using the same. An object of the present invention is to provide a floor frame for construction work and a building work floor using the same.

According to the first aspect of the present invention, there is provided a floor joint hardware for construction work for installing a scaffold in a construction work site, the floor joint hardware for construction work being connected to a plate-shaped frame. And a flat plate-like receiving beam mounting portion extending substantially perpendicularly from the housing connecting portion, and the receiving beam mounting portion extends to the housing connecting portion. A projecting first locking portion and a second locking portion protruding in a direction opposite to the direction are formed, and at least one of the first locking portion and the second locking portion is a free end. The side is bent toward the side where the receiving beam placing part is disposed, and a rod-like brace is passed to the inner corner of the housing connecting part and the receiving beam placing part, one of the first engaging portion and the second engaging portion, at least one, is a tip portion of the muscle exchange penetrating the skeleton connecting portion especially Ri is resolved.

As described above, the floor joint hardware for building work according to the present invention is easily attached by locking the first locking portion and the second locking portion to the beam-formed bolt holes constituting the frame. be able to.
In addition, at least one of the first locking portion and the second locking portion is bent after the free end side is bent toward the side where the receiving beam mounting portion is disposed, so that it is detached after being attached once. This can be prevented.
The floor joint hardware for construction work constructed in this way can fix the receiving beam to the receiving beam mounting part, and therefore, the floor panel can be easily simplified through the floor joint hardware for construction work. Fixing and building work floor can be easily formed.

At this time, the said housing connection part and the said receiving beam mounting part are substantially rectangular steel members, Comprising: The said 1st locking part and the said 2nd locking part are substantially cylindrical steel members. And at least one of the first locking portion and the second locking portion, which is formed in parallel with the side close to the receiving beam mounting portion and the side spaced from the receiving beam mounting portion. It is preferable that the tip end portion of the is formed in a tapered shape with the edge cut away.
Since it is comprised in this way, when locking a 1st locking part and a 2nd locking part to the bolt hole formed in the beam which comprises a housing, these 1st locking part and 2nd locking part The part can be easily inserted, and workability is improved.

Furthermore, at this time, a rod-like brace is passed to the inner corner of the housing connecting part and the receiving beam placing part, and among the first locking part and the second locking part, It is preferable that at least one of the ends of the muscular crossing penetrates the housing connecting portion.
If comprised in this way, high intensity | strength is securable.

In addition, a floor frame for building work according to the present invention is a frame formed by a plurality of structural steel members in which a plurality of floor joint hardware for building work according to claim 1 or 2 are arranged. A floor frame for a construction work formed by a frame-shaped frame and a plurality of receiving beams fixed to the floor joint hardware for building work, wherein the receiving beam is placed on the receiving beam placing portion And a receiving beam main body portion of a hollow rectangular steel pipe passed between the plurality of floor joint hardware for building work, and a surface of the receiving beam main body portion placed on the floor joint hardware for building work From the surface mounted on the floor joint hardware for construction work at both ends of the receiving beam main body portion and the member mounting portion that is arranged on the surface side to be passed and substantially parallel to the receiving beam main body portion Flat plate-shaped mounting plate portions that are fixed to the outer sides of two opposing side surfaces that stand vertically The floor joint hardware for construction work is configured in such a manner that the frame connecting portion is fixed to the frame-shaped frame in a state where the receiving beam placing portion is disposed above, A part of the mounting plate portion extends to the outside of the side surface so that a part thereof extends to the side opposite to the side on which the member mounting portion is disposed, and the distance therebetween is substantially the same as the width of the receiving beam mounting portion. The receiving beam is mounted on the receiving beam mounting portion with the member mounting portion disposed above, and the receiving beam is mounted on the receiving beam. The portion is configured to be fixed in a state of being fitted between the pair of mounting plate portions.

Since it is comprised in this way, the receiving frame for fixing a floor plate and other members (ladder etc.) can be installed, and the floor frame for construction work can be assembled easily.
That is, the receiving beam is passed between the two construction work floor brackets so as to be bridged.
In other words, two sets of floor joint hardware for building work are usually placed on opposite sides of a floor opening formed in a substantially rectangular shape by a plurality of structural steel members. For example, the receiving beam is bridged so as to be orthogonal to the opposite sides.
Thus, the floor frame for construction work can be simply installed with the structural member steel member, the floor joint hardware for construction work, and the receiving beam.
Note that the “body-constituting steel member” is a concept that includes all steel members that constitute a casing such as a beam and a trunk difference.

  Further, at this time, the receiving beam further includes an end plate portion to which a nut is fixed and a bolt mounting hole communicating with the inner hole of the nut is formed, and the end plate portion includes the nut and the receiving beam. It is attached to the end opening of the receiving beam main body so as to be disposed inside the main body, and a bolt is screwed into the nut from the bolt mounting hole, and the head side end of the bolt and the bolt It is preferable that the longitudinal distance of the receiving beam main body portion can be changed by changing the distance to the end plate portion.

If comprised in this way, this bolt will play the role of a spacer.
That is, by changing the screwing condition of the bolt, the distance between the head side end portion of the bolt and the end plate portion can be changed. Therefore, the longitudinal distance of the receiving beam main body portion can be changed. it can.
Therefore, even if there is a slight error in the distance between two sets of floor joint hardware for construction work, it is possible to adjust the distance in the longitudinal direction of the receiving beam body by changing the screwing condition of the bolt can do.

Further, at this time, a fixing member through hole is formed in each of the mounting plate portions, and the fixing member through hole is configured such that the receiving beam main body portion is disposed in the state where the member mounting portion is disposed upward. The casing that is mounted on the beam mounting portion and forms the floor joint hardware for building work when the receiving beam mounting portion is fixed in a state of being fitted between the pair of mounting plate portions. It is formed so as to be positioned above at least a part of the bar-shaped braces passed to the inner corners of the connecting portion and the receiving beam placing portion, and a fixing means is passed through the fixing member through-hole. By fixing, it is preferable that the movement of the braces in the upper direction is restricted and the receiving beams are prevented from rising.
Since it is comprised in this way, it can prevent that a receiving beam floats up from the floor joint metal fittings for construction work.
Therefore, it is possible to provide a high-strength floor structure for building work.
The “fixing means” refers to a member that can be passed through the fixing member through-hole, and is preferably a long rod.
Specifically, it is preferable to use a member such as a toggle pin.

In addition, a building work floor according to the present invention includes the building work floor frame according to any one of claims 3 to 5 and a floor panel.
Therefore, the floor opening can be easily closed and used as a scaffold, and a building work floor with high strength can be provided.

The floor joint hardware for construction work according to the present invention can be easily attached by locking the first locking portion and the second locking portion to the beam-formed bolt holes constituting the frame.
In addition, at least one of the first locking portion and the second locking portion is bent after the free end side is bent toward the side where the receiving beam mounting portion is disposed, so that it is detached after being attached once. This can be prevented.
Furthermore, the receiving beam is orthogonal to a pair of floor joint hardware for a construction work set so as to face each other on opposite sides of a floor opening portion that is generally formed in a substantially rectangular shape by a plurality of beams. The floor frame for building work is formed by the frame-shaped beam, the floor joint hardware for building work, and the receiving beam.

  Further, this receiving beam is provided with a flat mounting plate portion fixed to each of the two opposite side surfaces of both ends of the receiving beam main body portion. The receiving beam can be easily attached to the floor bonding hardware for construction work only by fitting the receiving beam mounting portion constituting the floor bonding hardware for construction work.

Furthermore, the structure which can adjust by changing the distance of the longitudinal direction of a receiving beam main-body part by the structure which screws in a bolt from the outer side to the end plate part to which the nut was fixed is provided.
For this reason, even if some errors occur in the distance between two sets of floor joint hardware for building work, this mechanism can be used.

In addition, fixing member through holes are formed in the mounting plate part, and by fixing the fixing means through the fixing member through holes, the upper part of the braces constituting the floor joint hardware for construction work It is configured to restrict movement in the direction and effectively prevent lifting of the receiving beam.
For this reason, it can prevent effectively that a receiving beam floats from the floor joint metal fittings for construction work.
Therefore, it is possible to provide a high-strength floor structure for building work.
The fixing means refers to a member that can be passed through the fixing member through-hole, and is preferably a long rod, specifically, a member such as a toggle pin.
Moreover, since a floor panel, a ladder, etc. can be attached to the member attachment part which comprises a receiving beam, a peripheral member can also be easily attached.

  As described above, according to the present invention, a floor joint hardware for building work that can be easily installed and can be used as a scaffold by closing the floor opening, and a floor frame for building work using the same, In addition, it is possible to provide a building work floor using these.

It is a perspective view which shows the joining metal fitting which concerns on one Embodiment of this invention. It is a 4th view which shows the joining metal fitting which concerns on one Embodiment of this invention. It is a perspective view which shows the receiving beam which concerns on one Embodiment of this invention. It is a 4th view which shows the receiving beam which concerns on one Embodiment of this invention. It is an enlarged 3rd view of the receiving beam edge part which concerns on one Embodiment of this invention. It is explanatory drawing which shows the width adjustment function of the receiving beam which concerns on one Embodiment of this invention. It is explanatory drawing which shows the opening part which concerns on one Embodiment of this invention. It is explanatory drawing which shows the attachment state of the joining metal fitting which concerns on one Embodiment of this invention. It is explanatory drawing which shows the attachment method of the metal fitting which concerns on one Embodiment of this invention. It is explanatory drawing which shows the state in which the joint metal fitting which concerns on one Embodiment of this invention was attached. It is explanatory drawing which shows the attachment state of the receiving beam which concerns on one Embodiment of this invention. It is explanatory drawing which shows the mode of joining of the receiving beam and joining metal fitting which concern on one Embodiment of this invention. It is explanatory drawing which shows the state by which the receiving beam was attached to the metal joint which concerns on one Embodiment of this invention. It is explanatory drawing which shows the floating prevention function of a receiving beam which concerns on one Embodiment of this invention. It is explanatory drawing which shows the attachment state of the ladder which concerns on one Embodiment of this invention. It is explanatory drawing which shows the attachment state of the panel which concerns on one Embodiment of this invention. It is explanatory drawing which shows the attachment state of the handrail which concerns on one Embodiment of this invention. It is explanatory drawing which shows a mode that opening was formed in the ladder uphole which concerns on one Embodiment of this invention.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
Note that the configuration described below does not limit the present invention and can be variously modified within the scope of the gist of the present invention.
The present embodiment can be easily installed, and a floor joint hardware for building work that can be used as a scaffold by closing the floor opening, a floor frame for building work using the same, and a building using these It relates to the floor for construction work.

  1 to 18 show an embodiment according to the present invention. FIG. 1 is a perspective view showing a metal joint, FIG. 2 is a four-view diagram showing the metal joint, and FIG. 3 is a perspective view showing a receiving beam. 4 is a four-sided view showing the receiving beam, FIG. 5 is an enlarged three-sided view of the end of the receiving beam, FIG. 6 is an explanatory diagram showing the width adjustment function of the receiving beam, and FIG. 8 is an explanatory view showing the attachment state of the joint hardware, FIG. 9 is an explanatory view showing the attachment method of the joint hardware, FIG. 10 is an explanatory view showing a state where the joint hardware is attached, and FIG. 11 is an attachment state of the receiving beam. FIG. 12 is an explanatory view showing a state of joining of the receiving beam and the joint metal, FIG. 13 is an explanatory view showing a state where the receiving beam is attached to the joint hardware, and FIG. 14 shows a function of preventing the lifting of the receiving beam. FIG. 15 is an explanatory view showing the attachment state of the ladder, FIG. 16 is an explanatory view showing the attachment state of the panel, and FIG. The illustration shown, FIG. 18 is an explanatory view showing a state in which an opening is formed in a ladder ascent.

First, referring to FIGS. 1 and 2, the structure of a floor joint hardware 1 for construction work (hereinafter simply referred to as “joint hardware 1”) will be described.
As shown in FIGS. 1 and 2, the metal joint 1 according to the present embodiment includes a hardware main body 11, a bracing 12, a first locking part 13, and a second locking part 14. .

  The hardware main body 11 according to the present embodiment includes a frame connecting portion 11a of a flat plate rectangular steel plate, a receiving beam mounting portion 11b of a flat plate rectangular steel plate extending substantially vertically from one side of the housing connecting portion 11a, A flat plate rectangle extending substantially perpendicularly in the same direction as the direction in which the housing connecting portion 11a extends from one side of this receiving beam placing portion 11b (on the side facing the side where the housing connecting portion 11a extends). And a hanging portion 11c of a shaped steel plate.

In the present embodiment, the distance between the receiving beam placing portion 11b and the free end of the housing connecting portion 11a is configured to be larger than the distance between the receiving beam placing portion 11b and the free end of the hanging portion 11c. Has been.
That is, the vertical length of the frame connecting portion 11a is the vertical direction of the hanging portion 11c (the receiving beam placing portion 11b is horizontal with respect to the ground surface, and the frame connecting portion 11a and the hanging portion 11c are on the side closer to the ground surface. It is configured to be longer than the length of the vertical direction when it is disposed.
A first through hole 111 is drilled above the housing connecting portion 11a, and a second through hole 112 is formed below.

  The bracing 12 according to the present embodiment is a rod-shaped round steel pipe having a circular cross section, and the back surface of the receiving beam mounting portion 11b (the surface facing downward: the side on which the housing connecting portion 11a and the hanging portion 11c are disposed). Surface) in a longitudinal direction (so as to cross between the housing connecting portion 11a and the hanging portion 11c), and bends in the vicinity of the continuous portion of the hanging portion 11c and the housing connecting portion 11a. The end is welded to the lower part of the inner surface (the surface on the side facing the hanging part 11c).

That is, it is passed from the bent part to the lower part of the housing connecting part 11a in an oblique direction so as to be reinforced as a bracing.
Moreover, the edge part of the upper side of the housing connection part 11a protrudes from the 1st through-hole 111 formed in the housing connection part 11a upper part, The front-end | tip part is bend | folded upwards, and is formed in hook shape.
The hook-shaped portion protruding from the first through hole 111 becomes the “first locking portion 13”.
Moreover, the 1st latching | locking part 13 is being fixed by welding in the state protruded from the 1st through-hole 111. FIG.

The tip end portion of the first locking portion 13 is formed in a tapered shape so as to easily penetrate the hole formed in the steel material.
For this reason, the operation | work which attaches the joining metal fitting 1 becomes easy, and workability | operativity improves.

Moreover, the 2nd latching | locking part 14 which concerns on this embodiment is a rod-shaped round steel pipe with a circular cross section, and is being fixed by welding in the state protruded from the 2nd through-hole 112. FIG.
The tip of the second locking portion 14 is formed in a tapered shape in order to make it easy to pass through a hole formed in the steel material, like the first locking portion 13.

Next, the structure of the receiving beam 2 will be described with reference to FIGS.
The receiving beam 2 according to the present embodiment includes a receiving beam main body portion 21, a member mounting portion 22, member mounting portion support portions 23 and 23, two sets of mounting plate portions 24 and 24, and end plate portions 25 and 25. It is configured.

The receiving beam main body portion 21 according to the present embodiment is composed of a long square steel pipe.
Moreover, the member attachment part 22 which concerns on this embodiment is comprised by the elongate round steel pipe.
The member attachment portion support portions 23, 23 according to the present embodiment are round steel pipes that are cut short, and are welded to both the top surface longitudinal direction both ends of the receiving beam main body portion 21 and the longitudinal direction both ends of the member attachment portion 22. The receiving beam main body 21 and the member mounting portion 22 are bridge-connected.

The mounting plate portion 24 is a substantially rectangular flat plate, and is welded so as to face each other at both ends in the longitudinal direction of both side surfaces of the receiving beam main body portion 21.
A fixing member through hole 24 a is formed in the mounting plate portion 24.
In addition, the space formed by the mounting plates 24 and 24 facing each other is referred to as a “joint metal fitting recess R”.

The distance between the pair of mounting plates 24, 24 facing each other (the width of the bonding hardware mounting recess R) is configured to be substantially the same as the width of the receiving beam mounting portion 11 b that forms the bonding hardware 1. ing.
In other words, the receiving beam placing portion 11b is configured to fit between the mounting plates 24 and 24 (joint fitting disposing recess R).
In other words, the receiving beam 2 can be attached to the metal fitting 1 by press-fitting the receiving beam mounting portion 11b between the mounting plates 24 and 24 (the metal fitting arrangement concave portion R).

The end plate portion 25 according to the present embodiment is a substantially rectangular plate and has a shape that matches the inner hole cross section of the receiving beam main body portion 21.
A bolt mounting hole 25 a is formed at the center of the end plate portion 25.
The end plate portions 25 and 25 are fitted into the opening portions at both ends of the receiving beam main body portion 21 and are welded.
That is, the opening portions at both ends of the receiving beam main body portion 21 are closed by the end plate portions 25 and 25 (the end plates 25 and 25 serve as lids).

A nut N is welded to the back side surface of the end plate 25 (the surface facing the inner hole portion of the receiving beam main body portion 21).
The nut N is welded so that its inner hole is aligned with the bolt mounting hole 25a.
That is, the inner hole of the nut N and the bolt mounting hole 25a are disposed concentrically and communicate with each other.

The spacer function by the nut N and the bolt B will be described with reference to FIG.
6A shows a position where the bolt B is screwed shallowly, and FIG. 6B shows a position where the bolt B is screwed deeply.
As these show, there is a difference in the distance t between FIG. 6A and FIG. 6B.
As described above, since this configuration is disposed at both ends of the receiving beam main body 21, the length of the receiving beam 2 can be adjusted by the distance 2t.

Therefore, even if there is an error in the width of the place where the receiving beam 2 is disposed, the maximum distance 2t can be adjusted by changing the degree of screwing of the bolt B.
In addition, by adjusting the length of the receiving beam 2 in this manner, the receiving beam main body 21 can be reliably fixed between the field wall trunk difference D and the blow-through horizontal beam H2.
In other words, the receiving beam main body portion 21 can be press-fitted between the field wall trunk difference D and the blow-through horizontal beam H2 with a certain tension.
That is, the spacer function can be provided by the nut N and the bolt B attached to the end plate 25.

Next, referring to FIGS. 7 to 17, the building work floor S (hereinafter, simply referred to as “work floor S”) using the joint hardware 1 and the receiving beam 2.
The working floor S according to the present embodiment is disposed in a floor opening Z where a floor opening is formed as shown in FIG.

As shown in FIG. 8, the floor opening Z according to the present embodiment has a steel field wall trunk difference D and a horizontal difference so as to be substantially perpendicular to the field wall trunk difference D. The extended blowout vertical beams H1 and H1 and the blowout horizontal beam H2 disposed so as to face the field wall trunk difference D are formed as an opening surrounded by a substantially rectangular frame shape.
In addition, the floor beam H3 is extended so as to be substantially perpendicular to the blowout horizontal beam H2 to form a floor structure.
Further, the field wall trunk difference D, the blow-through vertical beam H1, and the blow-through horizontal beam H2 correspond to the “body-constituting steel member”.

First, the joint hardware 1 is attached to the inner side surface of the floor opening Z of the field wall trunk difference D and the inner side surface of the floor opening Z of the blow-by horizontal beam H2.
In the present embodiment, a set of the joint hardware 1 attached to the field wall trunk difference D and the joint hardware 1 attached to the blowout horizontal beam H2 so as to face the joint hardware 1 is provided as four sets of joint hardware 1, 1 ( A total of 8) is attached.

At this time, the metal joints 1 and 1 constituting one set have the housing connection part 11a of one metal joint 1 attached to the inner surface of the floor opening Z of the field wall trunk difference D and the other metal joint 1 The frame connecting portion 11a is attached to the inner side surface of the floor opening Z of the blow-through horizontal beam H2.
In other words, the hanging metal parts 1 and 1 constituting one set are disposed so that the hanging parts 11c and 11c face each other.

A method for attaching the metal joint 1 will be described with reference to FIGS. 9 and 10.
A first mounting hole H2a and a second mounting hole H2b are formed in parallel in the vertical direction in the steel blowout horizontal beam H2.
The diameters of the first mounting hole H2a and the second mounting hole H2b are slightly larger than the diameters of the first locking portion 13 and the second locking portion 14, and the first locking portion 13 and the second locking hole 14 are formed. The stop part 14 can be penetrated.

Further, the distance between the first mounting hole H2a and the second mounting hole H2b is substantially the same as the distance between the first locking part 13 and the second locking part 14 on the housing connecting part 11a. It is formed as follows.
As shown in FIG. 9, the joint hardware 1 inserts the first locking portion 13 into the first mounting hole H2a, and inserts the second locking portion 14 into the second mounting hole H2b, thereby blowing the horizontal beam H2 for blow-through. Mounted on.

At this time, as described above, since the tip end portions of the first locking portion 13 and the second locking portion 14 are formed in a tapered shape, the first locking portion 13 and the second locking portion 14 are used for blowout. The first mounting hole H2a and the second mounting hole H2b formed in the cross beam H2 can be easily penetrated.
FIG. 10 shows a state in which the metal joint 1 is attached to the blowout horizontal beam H2.
As described above, the metal fitting 1 is attached by penetrating the first locking portion 13 and the second locking portion 14 through the first mounting hole H2a and the second mounting hole H2b formed in the blowout horizontal beam H2. .
Similarly, a hole is formed in the field wall trunk difference D, and the metal fitting 1 is attached in the same manner.

Next, a method for attaching the receiving beam 2 will be described with reference to FIGS.
As shown in FIGS. 11 and 12, the receiving beam 2 is attached over one set of the joint hardware 1 and 1.

  As shown in FIG. 11 and FIG. 12, the receiving beam 2 sandwiches the metal joint 1 between the two sets of mounting plate portions 24, 24 (the receiving beam mounting portion 11b is placed between the mounting plates 24, 24 (the joint metal mounting concave portion). R) and a bottom surface portion of the receiving beam main body portion 21 (a surface opposite to the surface on which the member mounting portion support portions 23 and 23 are erected) on the receiving beam mounting portion 11 b constituting the metal fitting 1. It is attached to the metal joint 1 in a state where it is placed.

FIG. 13 shows how the receiving beam 2 is attached to the metal joint 1 in this way.
As shown in FIG. 13, the receiving beam 2 according to the present embodiment is for the field wall between the joint metal 1 attached to the field wall trunk difference D and the joint metal 1 attached to the blowout horizontal beam H2. It is handed over so as to bridge between the trunk difference D and the blowout horizontal beam H2.

At this time, in order to prevent the receiving beam 2 from being lifted up, it is preferable to arrange a lifting prevention mechanism K in advance.
FIG. 14 shows the configuration of the lifting prevention mechanism K.
As shown in FIG. 14, the lifting prevention mechanism K according to the present embodiment includes a toggle pin K1 and a wire K2.

As shown in FIG. 14 (a), the wire K2 is hooked on the bracing portion 12 constituting the metal joint 1 in advance, and both end portions thereof are fixed to the swing side end portions of the toggle pin K1. .
That is, the toggle pin K1 is set in a state of being hung by the brace 12 constituting the metal joint 1 by the wire K2.
The toggle pin K1 corresponds to “fixing means”, and in the present embodiment, an example using the toggle pin K1 is disclosed.

In this state, the toggle pin K1 is passed through the fixing member through holes 24a and 24a formed in the mounting plate 24 constituting the receiving beam 2.
That is, the toggle pin K1 is allowed to pass through the fixing member through holes 24a and 24a so that the fulcrum side end and the swing side end protrude outward.
Then, the fulcrum side portion is fixed so as not to come off by turning.

In this way, since the toggle pin K1 passes through the fixing member through holes 24a and 24a, the toggle pin K1 is disposed on the upper side of the oblique side portion of the muscle member 12.
Therefore, even if a force is applied to the receiving beam 2 to lift from the metal fitting 1, the movement of the oblique side portion of the bracing member 12 is restricted by the toggle pin K1, and thus the receiving beam 2 is prevented from being lifted. .

In this way, after the receiving beam 2 is arranged, next (if necessary), a ladder U is installed as shown in FIG.
The frame-like frame formed by the field wall trunk difference D, the blow-through vertical beams H1 and H1, and the blow-through horizontal beam H2, the joint hardware 1 and the receiving beam 2 constitute a “floor frame for building work”. .
At the upper end of the ladder U, locking portions U1, U1 are arranged.
The locking portions U1, U1 are hook-shaped hooks.
The ladder U locks the locking portions U1, U1 to the member mounting portion 22 constituting the receiving beam 2 (the hook-shaped locking portions U1, U1 are hooked on the round bar-shaped member mounting portion 22). , Attached to the receiving beam 2.

Next, as shown in FIG. 16, the panel P is attached to the floor opening Z having a substantially rectangular frame shape composed of the field wall trunk difference D, the blow-through vertical beams H <b> 1 and H <b> 1, and the blow-through horizontal beam H <b> 2.
In the present embodiment, a combination of rectangular panel pieces P1, P2, and P3 is used as the panel P.

Since the method of fitting is almost the same, the panel piece P1 will be described as an example.
The panel piece P1 is a rectangular panel, and a rectangular parallelepiped first locking piece P1a and a second locking piece P1b project from the four corners.

In addition, a panel opening P1c is formed inside, and the panel opening P1c is covered with a removable panel lid P1d.
Note that the short side of the panel lid P1d is configured to be slightly shorter than the short side of the panel opening P1c. Therefore, when the panel lid P1d is installed, a handrail installation gap P11 is formed on one side. The A handrail is installed in this gap.
The distance between the first locking piece P1a and the second locking piece P1b is configured to be substantially the same as the diameter of the member mounting portion 22 constituting the receiving beam 2, and this first locking piece. The panel piece P1 is attached to the receiving beam 2 by press-fitting the member attachment portion 22 between P1a and the second locking piece P1b.

  In the present embodiment, the first locking piece P1a and the second locking piece P1b are not formed on the panel piece P3, and this panel piece P3 fills the gap between the panel pieces P1 and P2. So as to be laid.

Next, the handrail Q is attached.
As shown in FIG. 17, the handrails Q1 and Q2 are made of steel pipes whose legs are set in advance in a handrail installation gap P11 formed between the inner periphery of the panel opening P1c and the end of the panel lid P1d. It is erected by being inserted.
Further, the handrail Q3 is erected by inserting a leg portion thereof into a handrail installation hole P12 previously drilled in the top end of the panel piece P1.
In this way, the working scaffold in which the opening at the top of the ladder U and the handrail Q surrounding the opening are installed is easily formed.
It should be noted that the work frame S (“architecture”) is composed of a frame-like frame formed by the field wall trunk difference D, the blow-through vertical beams H1, H1, and the blow-through horizontal beam H2, the joint hardware 1, the receiving beam 2, and the panel P. Construction floor ").

Thereafter, if necessary, as shown in FIG. 18, the lid P1d of the panel piece P1 can be opened to expose the panel opening P1c.
In this way, when the lid P1d of the panel piece P1 is opened, an opening appears at the ascending opening of the ladder U, so that workers can pass and materials can be carried in and out.
That is, by opening and closing the lid part P1d of the panel piece P1, the work scaffold can be easily installed or removed.
Moreover, when raising a member larger than the panel opening P1c, it is also possible to cope by removing the panel pieces P2 and P3 and the receiving beam 2.

As described above, according to the metal joint 1 according to the present embodiment, a working scaffold can be easily formed via the receiving beam 2.
Moreover, since these are steel members and are each assembled | attached, it does not shift | deviate and workability | operativity improves more.

1 Bonding hardware (floor bonding hardware for construction work)
2 receiving beam 11 hardware main body part 11a frame connecting part 11b receiving beam mounting part 11c hanging part 12 bracing 13 first locking part 14 second locking part 21 receiving beam body part 22 member mounting part 23 member mounting part support part 24 mounting plate portion 24a fixing member through hole 25 end plate portion 25a bolt mounting hole 111 first through hole 112 second through hole B bolt D body wall trunk difference H1 blow-through vertical beam H2 blow-through horizontal beam H2a first mounting hole H2b Second mounting hole H3 Floor beam K Lifting prevention mechanism K1 Toggle pin (fixing means)
K2 wire N nut P panel P1, P2, P3 panel piece P1a first locking piece P1b second locking piece P1c panel opening P1d lid P11 handrail installation gap P12 handrail installation hole Q (Q1, Q2, Q3) handrail R joint Hardware installation recess S Work floor (Building floor)
U Ladder U1 Locking part Z Floor opening

Claims (6)

A floor joint hardware for construction work for installing a scaffolding at a construction site,
The floor joint hardware for construction work is
A plate-shaped housing connection part;
A plate-shaped receiving beam mounting portion extending substantially perpendicularly from the housing connecting portion,
The housing connecting portion is formed with a projecting first locking portion and a second locking portion protruding in a direction opposite to the direction in which the receiving beam mounting portion extends,
At least one of the first locking portion and the second locking portion has a free end bent toward the side where the receiving beam placement portion is disposed ,
A rod-shaped brace is passed to the inner corner of the housing connecting part and the receiving beam placing part,
At least one of the first locking portion and the second locking portion is a front end portion of the bracing that penetrates the housing connecting portion . The housing connecting part and the receiving beam placing part are substantially rectangular steel members,
The first locking portion and the second locking portion are substantially cylindrical steel members, and are arranged in parallel with a side close to the receiving beam mounting portion and a side spaced from the receiving beam mounting portion. Formed,
2. The floor joint for building work according to claim 1, wherein at least one tip portion of the first locking portion and the second locking portion is formed in a tapered shape with a cut edge. hardware. A frame-like frame formed by a plurality of structural steel members, wherein a plurality of floor joint hardware for building work according to claim 1 or 2 are disposed, and a plurality of floor joint hardware for building work A floor frame for building work formed with a receiving beam fixed to
The receiving beam is mounted on the receiving beam mounting portion and passed between a plurality of floor joint hardware for building work, and a receiving beam main body portion of the hollow rectangular steel pipe, and the receiving beam main body portion It is arranged on the surface side facing the surface placed on the floor joint metal fitting for building work, and the member mounting portion that is passed substantially parallel to the receiving beam main body, and the both ends of the receiving beam main body A plate-like mounting plate portion fixed to the outside of two opposing side surfaces that stand substantially vertically from the surface placed on the floor joint hardware for building work,
The floor joint hardware for construction work is in a state in which the receiving beam placing portion is disposed above, and the frame connecting portion is fixed to the frame-shaped frame,
A part of the mounting plate portion extends to the outside of the side surface so that a part thereof extends to the side opposite to the side on which the member mounting portion is disposed, and the distance therebetween is substantially the same as the width of the receiving beam mounting portion. Are each mounted to be
The receiving beam is mounted on the receiving beam mounting portion in a state where the receiving beam main body portion is disposed above the member mounting portion, and the receiving beam mounting portion is a set of the mountings. A floor frame for construction work, which is fixed in a state of being fitted between plate portions. The receiving beam further includes an end plate portion to which a nut is fixed and a bolt mounting hole communicating with the inner hole of the nut is formed.
The end plate portion is attached to the end opening of the receiving beam main body so that the nut is disposed inside the receiving beam main body.
The bolt can be screwed into the nut from the bolt mounting hole, and the distance between the head side end of the bolt and the end plate can be changed to change the longitudinal distance of the receiving beam main body. The floor framework for building work according to claim 3, which is capable of being made. A fixing member through hole is formed in each of the mounting plate portions,
The fixing member through-hole is mounted on the receiving beam mounting portion in a state where the receiving beam main body portion is disposed above the member mounting portion, and the receiving beam mounting portion is a set of the When fixed in a state of being fitted between the mounting plate portions, the bar-shaped braces passed to the inner corners of the frame connecting portion and the receiving beam mounting portion constituting the floor joint hardware for building work Is formed to be located above at least a part of
By fixing the fixing means is passed through said fixing member through hole to regulate the movement in the upper direction of the muscle exchange, according to claim 3, characterized in that to prevent the raised of the receiving beam Floor framework for construction work. A building work floor comprising the building work floor frame according to any one of claims 3 to 5 and a floor panel.

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