JP7011798B1 - How to fix fixtures and scaffolding boards - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a good workability when fixing a scaffold plate, and to enable a worker to work safely and with peace of mind on the scaffold. SOLUTION: This is a fixture for fixing a scaffolding plate to a single pipe, and has a hooking portion that is hooked on the upper surface of the scaffolding board from above the scaffolding board, and a hooking portion that is connected to the hooking portion and is connected along a side edge of the scaffolding board. On the flat plate portion to be arranged, the upper metal fitting having the first protruding portion and the second protruding portion protruding downward so as to sandwich the single tube downward from the lower portion of the flat plate portion, and the first protruding portion. The third protrusion that is rotatably supported and the fourth protrusion that engages with the second protrusion are directed upward, and a single tube is sandwiched between the protrusions to support the third protrusion. A lock with a lower bracket, a bolt portion rotatably locked to the second protrusion, a nut screwed into the bolt portion, and a locking notch formed at the bottom of the lower bracket. It is equipped with a mechanism. [Selection diagram] Fig. 2

Description

Embodiments of the present invention relate to a fixing method and a method for fixing a scaffold plate .

For example, when regularly inspecting the outer wall of a building or other building or the piping provided on the outer wall, or when performing repair work, work is performed after installing temporary scaffolding.

When installing a temporary scaffold, it is the number line that fixes the metal scaffolding plate to the horizontally arranged scaffolding pipe, and as a work, pass the number line through the hole provided in the scaffolding plate and insert the lower scaffolding pipe. It will be tied up.

In this way, the lashing work using the wire requires skill, and if the end treatment of the wire is not thoroughly performed, the clothes may be torn or the worker may be injured by being caught in the work clothes.

Therefore, in recent years, as a fixing tool for temporary scaffolding instead of the number wire, a single-tube sandwiching piece having a semi-arc-shaped single-tube sandwiching notch formed on the fixing bracket body is urged in the closing direction via a spring. (For example, see Patent Document 1), a fixture having a holding structure that holds the scaffolding pipe under the side surface of the scaffolding plate and is fixed by a belt on the upper surface of the scaffolding plate (see, for example, Patent Document 2), and the lower side is opened. A lever scaffolding plate clamp having a structure in which a scaffolding pipe is sandwiched between an arm and a clamp lever rotatably supported by the arm and the scaffolding plate is fixed by a holding plate passed over the upper surface of the scaffolding plate (see, for example, Patent Document 3). Etc. have been proposed.

Japanese Unexamined Patent Publication No. 09-228629 Japanese Unexamined Patent Publication No. 07-109833 Japanese Unexamined Patent Publication No. 05-033481

However, in the case of the fixing bracket described in Patent Document 1, since the single tube pinching piece is only urged by a spring to pinch the single tube, there is a concern that it will not come off, but some workers will come off. Some people were worried about the work of the scaffolding.

Further, in the case of the fixtures and clamps described in Patent Documents 2 and 3, it is necessary to attach the scaffold to a single pipe and to route a belt or a holding plate on the upper surface of the scaffold plate, resulting in poor workability and the scaffold plate. Since it takes time to fix the scaffolding and the belt and the holding plate are passed to the upper surface of the scaffolding plate, there is a problem that the worker may trip over the scaffolding while working on the scaffolding as in the conventional track. Further, in recent years, a plurality of types of metal scaffolding boards have been on the market, and it is also required to be able to handle scaffolding boards having different thicknesses, for example.

The problem to be solved by the present invention is to provide a fixing tool and a scaffolding board fixing method which have good workability when fixing the scaffolding board and allow an operator to work safely and securely on the scaffolding. be.

The fixing tool of the embodiment is a fixing tool for fixing a scaffolding plate placed on a fixed single pipe with the longitudinal direction oriented in a direction orthogonal to the axis of the single pipe to the single pipe, and is a fixing tool of the scaffolding plate. A hooking portion that is hooked on the upper surface of the scaffolding plate from above, a flat plate portion that is connected to the hooking portion and is arranged along the side edge of the scaffolding plate, and a single plate portion that is directed downward toward the lower portion of the flat plate portion. An upper metal fitting having a first projecting portion and a second projecting portion projecting so as to sandwich the tube from both sides, a third projecting portion rotatably supported by the first projecting portion, and the second projecting portion. A lower metal fitting projecting so as to support the single tube by sandwiching the single tube between the protruding portions, the second protruding portion and the fourth protruding portion, with the fourth protruding portion engaged with the above facing upward. It is provided with a lock mechanism provided so as to be able to lock and unlock the engagement state with the bolt portion, and the lock mechanism includes a bolt portion rotatably locked to the second protruding portion and a screw portion screwed to the bolt portion. The engaged nut is provided with a locking notch formed at the bottom of the lower metal fitting, the bolt portion is hooked on the locking notch portion, and the engaged state is locked by tightening the nut. The first protrusion and the third protrusion are pivotally supported by a rotation shaft that rotatably supports them, and the first protrusion is bent so that the position of the rotation shaft can be changed. A long hole-shaped through hole is formed .

The perspective view which shows the structure of the temporary scaffold which concerns on embodiment. The figure which shows the structure when the fixture which concerns on embodiment is seen from the side. A partial cross-sectional view showing a configuration when the fixture according to the embodiment is viewed from the front. Top view of the upper metal fittings before assembly. Side view of the upper metal fitting before assembly. Top view of the lower bracket before assembly. (A) is a top view of the bolt portion, and (b) is a side view of the bolt portion. A side view of the bolt portion seen from the downward direction rotated by 90 ° from FIG. 7 (b). The figure for demonstrating the attachment method of the fixture which concerns on embodiment. The figure for demonstrating the attachment method of the fixture which concerns on embodiment. Top view of the upper bracket for the end before assembly. Top view of the lower bracket before assembly for the end. Side view of the lower metal fitting before assembly according to another embodiment.

Hereinafter, embodiments will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing the configuration of a temporary scaffold of one embodiment.

As shown in FIG. 1, the temporary scaffolding 10 of the embodiment includes a plurality of single-tube scaffolding pipes 11 arranged in a substantially vertical direction, and a plurality of single-tube scaffolding pipes arranged in a substantially horizontal direction (horizontal direction) (hereinafter, "" Metal scaffolding plates combined by (referred to as "horizontal scaffolding pipes") 12 and a plurality of single-tube scaffolding pipes 13 arranged in an oblique direction, and bridged over a plurality of horizontal scaffolding pipes 12 arranged at predetermined heights. 21, 22, the scaffolding plate 14 fixed to the single pipe scaffolding pipe 11 is provided. In this temporary scaffold 10, the horizontal scaffold pipes 12 are arranged and fixed in a certain direction (horizontal direction). These single pipe scaffolding pipes are one of the "single pipes".

The metal scaffolding plates 21 and 22 have a height suitable for working on a building. In this example, for example, at a plurality of locations on the horizontal scaffolding pipe 12 at the third stage (third stage from the bottom) from the ground in FIG. Have been placed. These scaffolding boards 21 and 22 enable the transportation of materials, the placement of materials, the traffic of workers, and the movement to high places.

For the scaffolding plates 21 and 22, the arrangement direction of the plurality of bridged horizontal scaffolding pipes 12 is the longitudinal direction of the scaffolding plates 21 and 22 (the thickness direction of the paper surface), and the axial direction of the horizontal scaffolding pipes 12 is the scaffolding. The direction of the side of the board 20 (the left-right direction of the paper surface). That is, the horizontal scaffolding pipe 12 is used as a scaffold by placing the scaffolding plate 21 on a plurality of bridged horizontal scaffolding pipes 12 with the longitudinal direction of the scaffolding plate 21 facing in a direction orthogonal to the axis of the horizontal scaffolding pipe 12. It is a thing.

2 and 3 are views showing the configuration of the fixing tool 40 for fixing the scaffolding plates 21 and 22 shown in FIG. 1 to the horizontal scaffolding pipe 12, and FIG. 2 is a view showing the fixing tool 40 from the side. FIG. 3 is a diagram showing a configuration when viewed from the front (right side of FIG. 2) as a partial cross section. As shown in FIGS. 2 and 3, the fixture 40 has an upper metal fitting 45 and a lower metal fitting 47 obtained by die-cutting and bending a single steel plate having a thickness of, for example, 2.3 mm.

As shown in FIG. 3, the scaffolding plate 21 and the scaffolding plate 22 are arranged side by side, and the side edges are bent so as to be rolled inward around the side edges of the scaffolding plate bodies 21a and 22a made of a metal plate material. A portion (side surface 21b, bottom surface 21c, protruding surface 21d, etc.) is provided. The side edges of the scaffolding plate bodies 21a and 22a are formed by bending the sheet metal downward along the longitudinal direction into a U-shaped cross section.

Each of the side surfaces 21b and 22b of the scaffolding plates 21 and 22 has a function as a leg portion mounted on the horizontal scaffolding pipe 12.

The fixture 40 is a scaffolding plate fixing bracket for fixing the scaffolding plates 21 and 22 placed on the horizontal scaffolding pipe 12 in the direction perpendicular to the axial direction of the horizontal scaffolding pipe 12 in the longitudinal direction. Is.

FIG. 4 is a top view of the upper metal fitting 45 before assembly constituting the fixture 40, and FIG. 5 is a side view. As shown in these figures, the upper metal fittings 45 are divided by function, the pressing metal fittings 45a and 45b as the upper hooking portions, the flat plate portion 45c in the middle portion, the first protruding portion 45d and the second protruding portion in the lower portion. It is composed of 45f and the like.

The upper holding metal fittings 45a and 45b are formed by being bent at right angles to the flat plate portion 45c in opposite directions. As shown in FIG. 3, the holding metal fitting 45a is hooked on the upper surface of the scaffolding plate main body 21a from above the scaffolding plate 21. The presser foot fitting 45b is hooked on the upper surface of the scaffolding plate main body 22a from above the scaffolding plate 22. By interposing the fixture 40 between the two scaffolding plates 21 and 22 as in this example, the two scaffolding plates 21 and 22 can be fixed at the same time. In addition to the cases of these two scaffolding plates 21 and 22, for example, when the fixture 40 is used for the scaffolding plate at the end, the holding metal fittings 45a and 45b that are bent toward the side along the scaffolding plate should be used. However, this point will be described later.

The flat plate portion 45c in the central portion is connected (connected) to the holding metal fittings 45a and 45b, and is between the side surface 21b of the scaffolding plate 21 and the side surface 22b of the scaffolding plate 22 (along the side edges of the scaffolding plates 21 and 22). ) Be placed. The first protruding portion 45d and the second protruding portion 45f at the lower portion are projected downward from both sides of the horizontal scaffolding pipe 12 toward the lower portion of the flat plate portion 45c. A semicircular notch that abuts on the horizontal scaffolding pipe 12 is formed between the first protrusion 45d and the second protrusion 45f.

The first protruding portion 45d is formed with a through hole 45e for rotatably supporting the lower metal fitting 47 by, for example, riveting with a blind rivet or the like. In the present embodiment, the through hole 45e for passing the rivet, which is the axis of rotation, is not a circular hole but a curved elongated hole shape similar to a grain. As a result, the position of the rivet serving as the rotation axis can be changed in the vertical direction, and it is possible to handle scaffolding plates 21 and 22 having different thicknesses (for example, a thickness in the range of about 27 mm to 42 mm). On the other hand, the second protruding portion 45f is formed with a circular hole 45g for rotatably supporting the bolt portion constituting the lock mechanism described later.

The lower metal fitting 47 is a metal fitting obtained by die-cutting one steel plate and bending it upward. When classified according to function, the lower metal fitting 47 and the side plates 47a and 48a as a pair of plate-shaped members arranged opposite to each other. The bottom plate 46 as a connecting member that connects and supports the lower portions of the pair of side plates 47a and 48a so as to hold the side plates 47a and 48a symmetrically, and the regulation as a regulating portion bent upward at a right angle from the bottom plate 46. It has a metal fitting 49.

As shown in FIG. 3, the regulating metal fitting 49 has a regulating surface 49a at the upper end thereof. The regulation surface 49a is arranged with a gap provided inside the protruding surfaces 21d and 22d of the side edges of the scaffolding plates 21 and 22 in a state where the lower metal fitting 47 is engaged with the upper metal fitting 45. The regulation surface 49a regulates lateral displacement of the scaffolding plates 21 and 22 (displacement in the 12-axis direction of the horizontal scaffolding pipe), and when the scaffolding plate main bodies 21a and 22a are laterally displaced, the holding metal fittings 45a and 45b are used as scaffolding. It is provided with a width H3 that holds a state in which it can always be fixed so as not to come off from the plate bodies 21a and 22a. That is, the regulating metal fitting 49 is arranged so as to face the protruding surfaces 21d and 22d on the opposite side surfaces of the scaffolding plates 21 and 22 with the horizontal scaffolding pipe 12 sandwiched between the lower metal fitting 47 and the upper metal fitting 45.

The side plate 47a and the side plate 48a facing the side plate 47a have the same shape. Hereinafter, the side plate 47a on the side (one side) visible in the side view of FIG. 2 will be described. The side plate 47a has a third protrusion 47b on the left side in FIG. 2, a fourth protrusion 47c on the right side, and a middle portion 47d between these protrusions.

The third protruding portion 47b and the fourth protruding portion 47c are projected upward from the lower metal fitting 47 so as to sandwich the horizontal scaffolding pipe 12 between the protruding portions and support them from below. As shown in FIG. 6, which shows the upper surface configuration of the lower metal fitting 47 before assembly, the third protrusion 47b sandwiches the first protrusion 45d of the upper metal fitting 45 with the third protrusion 48b on the side plate 48a side. It is folded. Further, on the front surface of the fourth protruding portion 47c (the surface on the right side in FIG. 2), a bent portion 47f or the like that is bent substantially 90 ° toward the outside is provided.

The third protrusions 47b and 48b are provided with circular holes 47e and 48e corresponding to the through holes 45e of the first protrusion 45d of the upper metal fitting 45 described above, and the first is provided by a blind rivet or the like as a rotation axis. It is rotatably supported by the protrusion 45d. In this way, by using a blind rivet or the like, it is possible to prevent loosening as compared with the case where the rivet is fastened with a bolt and a nut or the like. As a fixture 40, the lower metal fitting 47 and the upper metal fitting 45 are rotatable around the hole 45e. The side plates 47a and 48a are formed with notches in which the middle portion 47d is cut out in a semicircular shape in order to abut and hold the horizontal scaffolding pipe 12.

The fourth protrusions 47c and 48c engage with the second protrusion 45f of the upper metal fitting 45. The lock mechanism 60 that locks and unlocks (unlocks) this engaged state will be described. As shown in FIG. 2, the bolt portion 61 is rotatably supported by a rivet or the like as a rotation axis in the circular hole 45g provided in the second protruding portion 45f described above, and the bolt portion 61 is rotatably supported by the bolt portion 61. Is screwed with a nut 62.

7 and 8 are views showing the configuration of the bolt portion 61, FIG. 7A is a top view, FIG. 7B is a side view, and FIG. 8 is a direction rotated by 90 ° from FIG. 7B. It is a side view seen from. As shown in these figures, the bolt portion 61 is composed of bolts such as M10, for example, a screw thread 61a is formed in a lower portion thereof, and a screwless portion 61b having no screw thread is formed on the upper end portion side. It has become. A notch 61c is formed along the axial direction in the radial center portion of the screwless portion 61b, and a part of the second protruding portion 45f can be inserted into the notch 61c.

Further, a through hole 61d is formed in the cut portion 61c so as to straddle the cut portion 61c and penetrate the screwless portion 61b. Then, by inserting the second protruding portion 45f into the notch 61c and riveting or the like so as to penetrate the through hole 61d and the circular hole 45g, the bolt portion 61 is rotatably supported by the second protruding portion 45f. Has been done. The lower end portion of the screw thread 61a of the bolt portion 61 is crushed by, for example, denting or the like so that the nut 62 does not come off from the bolt portion 61.

On the other hand, as shown in FIG. 6, the bottom plate 46 of the lower metal fitting 47 is formed with a U-shaped notch 46a so as to correspond to the bolt portion 61 described above. That is, the lock mechanism 60 is formed on a bolt portion 61 rotatably supported by the second protrusion 45f, a nut 62 screwed into the bolt portion 61, and a bottom plate 46 of the lower metal fitting 47. It is composed of a U-shaped notch 46a. In this case, by providing a notch 61c in the center of the bolt portion 61 and attaching it to the upper metal fitting 45, the bolt portion 61 can be attached without being eccentric to the upper metal fitting 45, and the lower metal fitting 47 as the lock mechanism 60. Even when tightened, the force can be applied uniformly without bias.

Then, with the fourth protrusions 47c and 48c engaged with the second protrusion 45f of the upper metal fitting 45, the bolt portion 61 is hooked on the U-shaped notch 46a, and the nut 62 is ratcheted trench in this state. The engaged state can be locked by tightening with or the like, and the lock can be unlocked (unlocked) by loosening the nut 62. Further, in the present embodiment, the bottom plate 46 located on the inlet side of the U-shaped notch 46a is formed with a protrusion 46b protruding downward. Therefore, even if the nut 62 is loosened to some extent, it is possible to prevent the bolt portion 61 and the nut 62 from coming off from the lower metal fitting 47 by the protrusion 46b.

The fixture 40 has a structure in which one end of the upper metal fitting 45 and the lower metal fitting 47 is rotatably supported by a rivet stopper or the like, and the other end is locked and unlocked (unlocked) by the lock mechanism 60. All parts are integrated. By integrating the parts in this way, it is possible to prevent the loss of the parts and the resulting contamination of foreign substances and disasters caused by dropping.

Here, the installation (fixing) work of the scaffolding plates 21 and 22 will be described with reference to FIGS. 9 and 10. In addition, in FIGS. 9 and 10, only one scaffolding plate 21 is shown for the sake of simplicity. In this case, after placing one of the scaffolding plates, for example, the scaffolding plate 21 on the horizontal scaffolding pipe 12, the holding metal fitting 45a of the fixture 40 in the open state as shown in FIG. 9 is attached to the upper surface of the scaffolding plate main body 21a. The fixture 40 is engaged with the scaffolding plate 21 and the horizontal scaffolding pipe 12 by applying the horizontal scaffolding pipe 12 to the semi-arc-shaped notch of the flat plate portion 45c.

Subsequently, the flat plate portion 45c of the fixture 40 is sandwiched between the side surface 21b of the scaffolding plate 21 and the side surface 22b of the scaffolding plate 22, and the other scaffolding plate 22 is arranged so as to be arranged on the scaffolding plate 21. At this time, the holding metal fitting 45b of the fixing tool 40 is applied to the upper surface of the scaffolding plate main body 22a (see FIG. 3). That is, the holding metal fittings 45a and 45b of the fixing tool 40 are hooked to the upper end portions of the scaffolding plates 21 and 22 from above the scaffolding plates 21 and 22.

Next, under the scaffolding plates 21 and 22, the nut 62 of the fixture 40 is loosened, and the lower metal fitting 47 is shown in a state where the bolt portion 61 is rotated upward as shown by the arrow shown in FIG. By rotating it upward as shown by the arrow shown in 9, the fourth protruding portion 47c of the lower metal fitting 47 is engaged with the second protruding portion 45f of the upper metal fitting 45, and the regulation metal fitting 49 of the lower metal fitting 47 is regulated. The surface 49a is engaged with the protruding surface 21d of the scaffolding plate 21 to bring the surface 49a into the engaged state shown in FIG. The same applies to the protruding surface 22d of the scaffolding plate 22.

That is, it corresponds to the first protruding portion 45d and the second protruding portion 45f protruding downward from both sides of the horizontal scaffolding pipe 12 to the fixture 40, and the first protruding portion 45d and the second protruding portion 45f. The horizontal scaffolding pipe 12 is sandwiched from the top, bottom, left and right by engaging the third protrusion 47b and the fourth protrusion 47c projecting upward from the fixture 40.

After that, the bolt portion 61 is rotated downward as shown by the arrow shown in FIG. 10, and the bolt portion 61 is inserted into the U-shaped notch 46a (see FIG. 6) formed in the bottom plate 46 of the lower metal fitting 47. insert. Then, by tightening the nut 62 with a ratchet wrench or the like, the engaged state of the upper metal fitting 45 and the lower metal fitting 47 is locked.

On the other hand, when unlocking, that is, unlocking the fixture 40 by dismantling the temporary scaffolding 10, loosen the nut 62 with a ratchet wrench or the like and fix it by the reverse operation of the above. The tool 40 can be removed, and the horizontal scaffolding pipe 12, the scaffolding plate 21, and the scaffolding plate 22 can be removed and disassembled.

When assembling and disassembling the temporary scaffold 10 as described above, as shown in FIG. 13, a protrusion protruding from the upper portion of the hole 47e of the lower metal fitting 47, which is the rotation axis between the upper metal fitting 45 and the lower metal fitting 47. It is advisable to provide 47 g of pieces. In the state where the lock mechanism 60 is open, the lower metal fitting 47 rotates with respect to the upper metal fitting 45, but the protruding piece 47 g abuts on the horizontal scaffolding pipe 12, the rotation is restricted, and the fixture 40 falls. Can be prevented.

As described above, according to the temporary scaffolding 10 of this embodiment, the lower metal fittings 47 are rotatably supported on the upper metal fittings 45, and the holding metal fittings 45a and 45b of the upper metal fittings 45 are attached to the scaffolding plate main bodies 21a and 22a, respectively. With the horizontal scaffolding pipe 12 sandwiched from both sides by the first protruding portion 45d and the second protruding portion 45f of the upper metal fitting 45, the lower metal fitting 47 is engaged with the upper metal fitting 45 and the horizontal scaffolding pipe 12 is engaged from above and below. And locks the engaged state between the upper metal fitting 45 and the lower metal fitting 47 with the lock mechanism 60, so that the scaffolding plates 21 and 22 are securely fixed to the horizontal scaffolding pipe 12 with the fixture 40 with good workability. can do. Further, as compared with the conventional case, the workability required for the fixing work and the dismantling work of the scaffolding plate 20 in the temporary scaffolding 10 is improved, and the working time can be shortened.

Further, since the upper holding metal fittings 45a and 45b are hooked at the ends of the scaffolding plate bodies 21a and 22a with a plate thickness (about 2.3 mm), the number is passed to the scaffolding plates 21 and 22 as in the conventional case. The risk of workers tripping is significantly less than when tied up.

Further, one steel plate is die-cut into two plates, and each plate is bent to make an upper metal fitting 45 and a lower metal fitting 47, one end of each metal fitting is rotatably supported, and the other end is supported. The lock mechanism 60 is configured by the bolt portion 61 and the nut 62 rotatably supported by the upper metal fitting 45, the U-shaped notch 46a formed in the bottom plate 46 of the lower metal fitting 47, and the like. As a material cost and processing cost can be significantly reduced.

As a result, the workability when fixing the scaffolding plates 21 and 22 is good, and the worker can work safely and securely on the scaffolding.

In the above embodiment, an example in which one fixture 40 is arranged between the two scaffolding plates 21 and 22 and fixed to the horizontal scaffolding pipe 12 is shown, but the scaffolding plate 21 at the end of one end is shown. Needless to say, it can be fixed to the horizontal scaffolding pipe 12 with the holding metal fittings 45a or 45b alone. Further, for the scaffolding plate 21 at one end, for example, as shown in FIG. 11, as the upper metal fitting 45, there is a holding metal fitting 45a on only one side, and as shown in FIG. 12, the lower metal fitting 45a is provided. As the metal fitting 47, one having a regulation metal fitting 49 on only one side may be used.

Although embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. This novel embodiment can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. Further, this embodiment and its modifications are included in the scope and gist of the invention, and are also included in the scope of the invention described in the claims and the equivalent scope thereof.

10 ... Temporary scaffolding, 11 ... Single pipe scaffolding pipe, 12 ... Horizontal scaffolding pipe, 13 ... Single pipe scaffolding pipe, 14 ... Scaffolding board, 21, 22 ... Scaffolding board, 21a, 22a ... Scaffolding board body, 40 ... Fixture , 45 ... upper metal fitting, 45d ... first protrusion, 45f ... second protrusion, 45 g ... circular hole, 45e ... through hole, 46 ... bottom plate, 46a ... U-shaped notch, 46b ... protrusion, 47 ... lower Metal fittings, 47a, 48a ... Side plates, 47b, 48b ... Third protrusions, 47c, 48c ... Fourth protrusions, 47d, 48d ... Middle part, 47e, 48e ... Holes, 47f, 48f ... Bent parts, 49 ... Regulatory metal fittings , 49a ... Regulatory surface, 60 ... Lock mechanism, 61 ... Bolt part, 62 ... Nut.

Claims (9)

It is a fixture that fixes a scaffolding plate placed on a fixed single tube with its longitudinal direction oriented in the direction orthogonal to the axis of the single tube to the single tube.
A hooking portion that is hooked on the upper surface of the scaffolding plate from above the scaffolding plate, a flat plate portion that is connected to the hooking portion and is arranged along the side edge of the scaffolding plate, and a lower portion below the flat plate portion. An upper metal fitting having a first projecting portion and a second projecting portion projecting so as to sandwich the single tube from both sides, and an upper metal fitting.
The single tube is sandwiched between the protrusions with the third protrusion rotatably supported by the first protrusion and the fourth protrusion engaged with the second protrusion facing upward. With the lower metal fittings that are projected to support with
It is provided with a locking mechanism provided so that the engagement state between the second protruding portion and the fourth protruding portion can be locked and unlocked.
The locking mechanism includes a bolt portion rotatably locked to the second protruding portion, a nut screwed into the bolt portion, and a locking notch formed at the bottom of the lower metal fitting. The bolt portion is hooked on the locking notch portion, and the nut is tightened to lock the engaged state.
The first protrusion and the third protrusion are pivotally supported by a rotation shaft that rotatably supports them, and the first protrusion has a bent length that allows the position of the rotation shaft to be changed. Fixture with a hole-shaped through hole . The lower metal fitting is
The fixture according to claim 1 , further comprising a projecting piece that is pivotally supported by the rotating shaft, projects upward of the shaft support portion, and controls the rotation of the lower metal fitting around the rotating shaft by contacting with the single tube. It is a fixture that fixes a scaffolding plate placed on a fixed single tube with its longitudinal direction oriented in the direction orthogonal to the axis of the single tube to the single tube.
A hooking portion that is hooked on the upper surface of the scaffolding plate from above the scaffolding plate, a flat plate portion that is connected to the hooking portion and is arranged along the side edge of the scaffolding plate, and a lower portion below the flat plate portion. An upper metal fitting having a first projecting portion and a second projecting portion projecting so as to sandwich the single tube from both sides, and an upper metal fitting.
The single tube is sandwiched between the protrusions with the third protrusion rotatably supported by the first protrusion and the fourth protrusion engaged with the second protrusion facing upward. With the lower metal fittings that are projected to support with
It is provided with a locking mechanism provided so that the engagement state between the second protruding portion and the fourth protruding portion can be locked and unlocked.
The locking mechanism includes a bolt portion rotatably locked to the second protruding portion, a nut screwed into the bolt portion, and a locking notch formed at the bottom of the lower metal fitting. The bolt portion is hooked on the locking notch portion, and the nut is tightened to lock the engaged state.
The lower metal fitting is a fixing tool having a protrusion on the inlet side of the locking notch at the bottom to prevent the bolt portion from coming off. It is a fixture that fixes a scaffolding plate placed on a fixed single tube with its longitudinal direction oriented in the direction orthogonal to the axis of the single tube to the single tube.
A hooking portion that is hooked on the upper surface of the scaffolding plate from above the scaffolding plate, a flat plate portion that is connected to the hooking portion and is arranged along the side edge of the scaffolding plate, and a lower portion below the flat plate portion. An upper metal fitting having a first projecting portion and a second projecting portion projecting so as to sandwich the single tube from both sides, and an upper metal fitting.
The single tube is sandwiched between the protrusions with the third protrusion rotatably supported by the first protrusion and the fourth protrusion engaged with the second protrusion facing upward. With the lower metal fittings that are projected to support with
It is provided with a locking mechanism provided so that the engagement state between the second protruding portion and the fourth protruding portion can be locked and unlocked.
The locking mechanism includes a bolt portion rotatably locked to the second protruding portion, a nut screwed into the bolt portion, and a locking notch formed at the bottom of the lower metal fitting. The bolt portion is hooked on the locking notch portion, and the nut is tightened to lock the engaged state.
The lower metal fitting is a fixing tool having a restricting metal fitting that is arranged to face the inner wall of the scaffolding plate in a state where the single pipe is sandwiched between the lower metal fitting and the upper metal fitting. The bolt part is
A notch cut along the axial direction is provided at the center of the axial end portion in the radial direction, and the second protruding portion is rotated to the second protruding portion with a part of the second protruding portion accommodated in the notch. The fixture according to any one of claims 1 to 4 , which is freely locked. The fixing according to any one of claims 1 and 2 , wherein the lower metal fitting has a protrusion on the inlet side of the locking notch at the bottom to prevent the bolt portion from coming off. Ingredients. The lower metal fitting
The fixing tool according to any one of claims 1 to 3 , further comprising a regulating metal fitting arranged to face the inner wall of the scaffolding plate with the single pipe sandwiched between the lower metal fitting and the upper metal fitting. The fixing tool according to any one of claims 1 to 7 , wherein the hook portion is formed by bending at a right angle to the flat plate portion in a direction opposite to each other. Using the fixture according to any one of claims 1 to 8, a scaffolding plate placed on a fixed single tube with the longitudinal direction oriented perpendicular to the axis of the single tube is placed on the fixed single tube. How to fix the scaffolding board to be fixed to the pipe .

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