JP2020165218A - Fixing tool, and fixing method of the same - Google Patents

Abstract

To enable a worker to perform a work on a scaffold safely without anxiety with a preferable workability in fixing a scaffold plate.SOLUTION: A fixing tool comprises an upper metal fitting, a lower metal fitting and a lock mechanism. The upper metal fitting includes: an engaging portion engaged with an upper face of a scaffold plate from an upper part of the scaffold plate; a flat plate portion connected with the engaging portion and disposed along a side edge of the scaffold plate; and a first protruding portion and a second protruding portion protruding downwardly at a lower part of the flat plate portion so as to clamp a single pipe from both sides. The lower metal fitting includes a third protruding portion rotatably supported by the first protruding portion and a fourth protruding portion engaging with the second protruding portion, which protrudes so as to clamp and support the single pipe between the protruding portions while directing the third protruding portion and the fourth protruding portion upwardly. The lock mechanism is provided so as to lock and unlock an engagement state of the second protruding portion and the fourth protruding portion.SELECTED DRAWING: Figure 1

Description

An embodiment of the present invention relates to a fixture and a method for fixing the fixture.

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, the 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 scaffolding pipe arranged in the horizontal direction, 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 number line requires skill, and if the end treatment of the number line 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 temporary scaffolding fixture to replace the number wire, a single-tube sandwiching piece having a semi-arc-shaped single-tube sandwiching notch formed in 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 on the lower side of the scaffolding plate and fixes it with 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 a vertical 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 Patent Application Laid-Open No. 09-228629 Japanese Unexamined Patent Publication No. 07-109833 Japanese Patent Application Laid-Open No. 05-033481

However, in the case of the fixing bracket described in Patent Document 1, since the single-tube sandwiching piece is only urged by a spring to sandwich 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 scaffolding plate to a single pipe and to route the belt and the holding plate on the upper surface of the scaffolding plate, resulting in poor workability and the scaffolding 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.

An object to be solved by the present invention is to provide a fixture and a fixing method thereof, which have good workability when fixing a scaffold plate and allow an operator to work safely and securely on the scaffold.

The fixture of the embodiment is a fixture for fixing a scaffolding plate placed on a fixed single pipe in a direction orthogonal to the axis of the single pipe in the longitudinal direction, and fixing the upper metal fitting and the lower portion. It is equipped with metal fittings and a lock mechanism. The upper metal fittings are provided on 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 of the flat plate portion. It has a first projecting portion and a second projecting portion projecting downward so as to sandwich the single tube from both sides. The lower metal fitting has a third protrusion rotatably supported by the first protrusion, a fourth protrusion that engages with the second protrusion, and the third protrusion and the fourth protrusion facing upward. A single tube was sandwiched between the protruding parts of each other to support the project. The lock mechanism is provided so that the engaged state between the second protruding portion and the fourth protruding portion can be locked and unlocked.

It is a perspective view which shows the structure of the temporary scaffold which concerns on one Embodiment of this invention. It is a perspective view which shows the state that the metal scaffolding plate provided in the temporary scaffolding is fixed by the fixture. It is a side view of the fixture of FIG. It is a front view of the fixture of FIG. It is a perspective view which shows the rotating pin. It is a figure which shows the positional relationship between a protrusion and a hole. It is a side view which shows the state which the fixture is opened. It is a figure which shows the state of locking the lock of a fixture. It is a figure which shows the state of unlocking (unlocking) of a fixture. It is a figure which shows an example of the fall prevention function (hook structure) of a fixture. It is a figure which shows an example of the fall prevention function (the urging mechanism) of a fixture.

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 diagonally, and bridged over a plurality of horizontal scaffolding pipes 12 arranged at predetermined heights. 21, 22, a pinch plate 14 fixed to a single pipe scaffolding pipe 11 is provided. In the temporary scaffolding 10, the horizontal scaffolding 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 work on a building, and in this 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.

FIG. 2 is a perspective view showing a portion (main part) in which the scaffolding plates 21 and 22 shown in FIG. 1 are fixed by the fixture 40, FIG. 3 is a side view of the main part of FIG. 2, and FIG. 4 is a front view of the main part. Is.
As shown in FIGS. 2 and 3, the scaffolding plate 21 and the scaffolding plate 22 are arranged side by side, and are bent so as to be wound inward around the side edges of the scaffolding plate main bodies 21a and 22a made of a metal plate material. Side edges (side surface 21b, bottom surface 21c, protruding surface 21d, etc.) are 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. In FIG. 2, a part of the scaffolding plate main bodies 21a and 22a (a part of the scaffolding plate 21 and 22 in the longitudinal direction) is broken and shown.

The side surfaces 21b and 22b of the scaffolding plate main bodies 21 and 22 each have a function as legs to be 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 lateral scaffolding pipe 12 in a direction orthogonal to the axial direction of the lateral scaffolding pipe 12 in the longitudinal direction. Is.

As shown in FIGS. 2 to 4, 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. The upper metal fitting 45 is composed of holding metal fittings 45a and 45b as hooking portions on the upper side, a flat plate portion 45c on the middle portion, a first protruding portion 45d and a second protruding portion 45f on the lower portion, and the like. 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 hooked by a rotating pin 51 and a guide groove 45 g. Everything is 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.

The upper holding metal fittings 45a and 45b are formed by bending the flat plate portion 45c at right angles in opposite directions. The presser foot 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 the 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 are used.

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). ) Placed. The first protruding portion 45d and the second protruding portion 45f at the lower portion are projected downward from the lower portion of the flat plate portion 45c so as to sandwich the lateral scaffolding pipe 12 from both sides.

The lower metal fitting 47 is a metal fitting obtained by die-cutting one steel plate and bending it upward. According to the function, the side plates 47a and 48a as a pair of two plate-shaped members arranged to face each other. A 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 a regulating metal fitting as a regulating portion bent upward at a right angle from the bottom plate 46. Has 49.

The regulating metal fitting 49 has a regulating surface 49a at the upper end. The regulation surface 49a is arranged with a gap inside the protruding surface 21d of the side edge portion of the scaffolding plate 21 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 plate 21 (displacement in the 12-axis direction of the horizontal scaffolding pipe), and when the scaffolding plate main body 21a is laterally displaced, the holding metal fitting 45b does not come off from the scaffolding plate main body 21a. As described above, the width H3 (see FIG. 4) is provided so as to always maintain a state in which it can be fixed. The regulation surface 49a is similarly provided on the side of the scaffolding plate 22.
That is, the restricting metal fitting 49 is arranged so as to face the inner walls of 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 regulation surface 49a is provided with a protrusion 49i that is embossed (pressed by a die) for reinforcement.

Since the side plate 47a has the same shape as the side plate 48a facing the side plate 48a and cannot be seen in the perspective view of FIG. 2, the side plate 47a on the visible side (one side) will be described, but the same can be said for the side plate 48a. The side plate 47a has a third protrusion 47b on the left side facing the paper surface, a fourth protrusion 47c on the right side facing the paper surface, and a middle portion 47d between these protrusions.

The third protrusion 47b and the fourth protrusion 47c (48c) are projected upward from the lower metal fitting 47 so as to sandwich the horizontal scaffolding pipe 12 between the protrusions and support them from below. .. The third protruding portion 47b is drawn so as to sandwich the first protruding portion 45d of the upper metal fitting 45 with the third protruding portion 48b on the side plate 48a side.

The third protruding portion 47b is provided with a hole (not shown because it overlaps with the hole 45e) corresponding to the hole 45e of the first protruding portion 45d of the upper metal fitting 45, and the first protruding portion 45d is provided with, for example, a rivet. It is rotatably supported. As for the fixture 40, the lower metal fitting 47 and the upper metal fitting 45 are rotatable about the hole 45e (see FIG. 7).

The fourth protrusions 47c and 48c engage with the second protrusion 45f of the upper metal fitting 45. Rotating pins 51 are provided on the fourth protrusions 47c and 48c. The lock mechanism 60 (see FIG. 3) is formed by the rotating pin 51 and the guide groove 45g provided in the second protruding portion 45f. The lock mechanism 60 can lock and unlock the engaged state of the second protrusion 45f and the fourth protrusions 47c and 48c.

The side plates 47a and 48a are notched by cutting out the middle portion 47d in a semicircular shape in order to abut and hold the horizontal scaffolding pipe 12. That is, each of the side plates 47a and 48a is provided with a semicircular notch provided corresponding to the shape of the horizontal scaffolding pipe 12. Further, the side plate 47 is provided with a protruding portion 47i embossed for reinforcement from the central portion 47d to the first protruding portion 47b. The side plate 48a is also provided with a protrusion 48i.

Holes 47e and 48e are provided to face each other in the side plates 47a and 48a, respectively. In these holes 47e and 48e, as shown in FIG. 5, the end portion of the rotating pin 51 (connecting portion 51a in FIG. 5) as a metal rod-shaped member (locking member) whose outer shape is bent into a U-shaped cross section. , 51b) are engaged, and the connecting portion 51e is rotatably supported so as to draw an arc in the direction of the arrow S1 in FIG.

As shown in FIG. 5, the rotating pin 51 corresponds to each of the pair of side plates 47a and 48a, and the pair of end portions 51a as rotation axes rotatably supported by the holes 47e and 48e of the pair of side plates 47a and 48a. , 51b and a pair of intermediate members 51c and 51d arranged outside the pair of side plates 47a and 48a and one ends connected to the pair of end portions 51a and 51b, and both ends at the other ends of the pair of intermediate members 51c and 51d. Has a connecting portion 51e to which is connected.

The intermediate members 51c and 51d are bent in a "dogleg" shape, respectively, and have an elastic hooking function for engaging with the notch 45g. The connecting portion 51e functions as a hooking shaft for hooking the rotating pin 51 on the guide groove 45g.

That is, the rotating pin 51 has a connecting portion 51e (hooking portion), and the connecting portion 51e (hooking portion) is rotatably supported by the side plates 47a and 48a so as to draw an arc outside the side plates 47a and 48a. There is.

Further, the guide groove 45g of the second protruding portion 45f is provided with a protrusion 45h (see FIG. 6) to prevent the rotating pin 51, which is rotated around the holes 47e and 48e as the center of rotation, from coming off in a hooked state. ing.

As shown in FIG. 6, in the guide groove 45g of the upper metal fitting 45, a protrusion 45h for preventing disengagement is provided at a position H2 which is inserted inside the position H1 of the hole 47e (48e). That is, a protrusion 45h is provided at a position H2 inside the position of the rotation shaft (ends 51a, 51b) on which the rotation pin 51 is rotatably supported.

As a result, when the rotating pin 51 is hooked on the guide groove 45g, as long as the connecting portion 51e (see FIG. 5) passes over the protrusion 45h inward, the connecting portion 51e of the rotating pin 51 will be affected by vibration or the like. It will not shift outward and come off from the guide groove 45g.

As shown in FIG. 2, the bottom plate 46 is provided with an opening 46a at a position substantially directly below the connecting portion 51e (see FIG. 5) of the rotating pin 51 in a state of being engaged with the guide groove 45g of the second protruding portion 45f. ing. The opening 46a is provided at the position of the bottom plate 46 corresponding to the position of the connecting portion 51e (hanging portion) in a state of being engaged with the guide groove 45g. The opening 46a is for operating the connecting portion 51e with a tool such as a inserted Shino to lock or unlock the engaged state between the second protruding portion 45f and the fourth protruding portions 47c and 48c.

The opening 46a is used for the work of engaging (hooking) the connecting portion 51e of the rotating pin 51 with the guide groove 45g and the work of releasing the engaged state (hooking state). The specific work will be described below.

Here, the installation (fixing) work of the scaffolding plates 21 and 22 will be described with reference to FIGS. 7 to 9.
In this case, after the scaffolding plate 21 is placed on the horizontal scaffolding pipe 12, the holding metal fitting 45b of the fixture 40 in the open state as shown in FIG. 7 is applied to the upper surface of the scaffolding plate main body 21a, and the flat plate portion 45c. The fixing tool 40 is engaged with the scaffolding plate 21 and the horizontal scaffolding pipe 12 so that the horizontal scaffolding pipe 12 is applied to the semi-arc-shaped notch.

Subsequently, the scaffolding plate main body 22 is arranged so as to be arranged on the scaffolding plate 21 so that the flat plate portion 45c of the fixture 40 is sandwiched between the side surface 21b and the side surface 22b of the scaffolding plate 21. At this time, the holding metal fitting 45a of the fixture 40 is applied to the upper surface of the scaffolding plate main body 22a.
That is, the holding metal fittings 45a and 45b of the fixture 40 are hooked on 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 lower metal fitting 47 of the fixture 40 is rotated by the arrow S3, and 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. At the same time, the regulating surface 49a of the regulating portion 49 of the lower metal fitting 47 is engaged with the protruding surface 21d of the scaffolding plate 21 to bring it 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 lateral 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 locking mechanism 60 (connecting portion 51e of the rotating pin 51, guide groove 45g) provided on the second protruding portion 45f and the fourth protruding portion 47c locks the engaging state of the protruding portions.
To explain in detail, a tool such as a sino (ratchet) 61 is inserted through the opening 46a of the bottom plate 46 of the lower metal fitting 47, and the tip thereof is next to the connecting portion 51e of the rotating pin 51 (on the right side of the connecting portion 51e toward the paper surface). By applying a force in the direction of arrow S4 to the Shino (ratchet) 61 with the edge of the opening 46a as the fulcrum, without using screws such as bolts and nuts or a screwdriver or spanner to turn it, the principle of leverage As a result, the connecting portion 51e is moved in the direction of the arrow S5, is hooked on the guide groove 45g, and the engaged state is maintained (locked).

On the other hand, when unlocking, that is, unlocking the fixture 40 by disassembling the temporary scaffold 10 or the like, as shown in FIG. 9, the bottom plate 46 of the lower metal fitting 47 is opened from the opening 46a. A tool such as a ratchet) 61 is inserted, the tip of the tool is projected to the side of the connecting portion 51e of the rotating pin 51 (on the left side of the connecting portion 51e toward the paper surface), and the arrow S6 is directed to the shino (ratchet) 61 with the edge of the opening 46a as a fulcrum. By applying the force in the direction of, the connecting portion 51e is moved in the direction of the arrow S7 by the principle of the tool, is disengaged from the guide groove 45g, and the hooked state is released. That is, the release can be performed by the reverse operation of the lock operation, and the locked state of the rotating pin 51 can be released by the principle of leverage.

Here, the fall prevention function of the fixture 40 will be described with reference to FIGS. 10 and 11.
As shown in FIG. 10, the fixture 40 has a structure in which the protruding length H4 of the second protruding portion 45f is made longer than the radius R of the horizontal scaffolding pipe 12 and is hooked. Therefore, when the fixture 40 in the open state is hooked on the horizontal scaffolding pipe 12, when the upper metal fitting 45 is rotated by the weight of the lower metal fitting 47, the edge portion of the second protruding portion 45f is formed on the pipe top 12a. It hangs and hangs, making it difficult to fall.
Further, as shown in FIG. 11, a leaf spring 66 in which an urging force acts in the closing direction (rounding direction) is passed to the upper metal fitting 45 and the lower metal fitting 47, and the leaf spring end portions are fixed to the respective metal fittings.
By providing the urging mechanism that closes the upper metal fitting 45 and the lower metal fitting 47 in this way, the metal fittings are always closed. For example, with the fixing tool 40 hooked on the horizontal scaffolding pipe 12, the operator can use the fixing tool 40. It is possible to prevent the fixture 40 from falling off from the lateral scaffolding pipe 12 when the hand is released from the horizontal scaffolding pipe 12.

As described above, according to the temporary scaffolding 10 of this embodiment, the lower metal fitting 47 is rotatably supported by the upper metal fitting 45, and the holding metal fittings 45a and 45b of the upper metal fitting 45 are attached to the scaffolding plate main bodies 21a and 22b, 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. Is sandwiched, and the engaged state between the upper metal fitting 45 and the lower metal fitting 47 is locked by the lock mechanism 60 (the guide groove 45 g of the second protruding portion 45f, the rotating pin 51 pivotally supported by the fourth protruding portion 47c). With the fixture 40, the scaffolding plates 21 and 22 can be securely fixed to the horizontal scaffolding pipe 12 with good workability.

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

Further, since the protrusion 45h (top) is provided inside the hole 47e at the center of rotation in the state where the fixture 40 is fixed to the guide groove 45g, the rotation pin 51 is provided with a shino using the principle of the lever. It will not come off unless you move it directly. Further, from the state where the rotating pin 51 is hooked inside the protrusion 45h of the guide groove 45g, the connecting portion 51e of the rotating pin 51 does not come off from the guide groove 45g due to vibration or the like, so that the safety is further enhanced. Further, by providing a mechanism for rotating and locking the rotating pin 51, it can be seen that the rotating pin 51 is locked at an angle (position, orientation) of the rotating pin 51, and the anxiety of the operator can be eliminated. Further, when it is not locked, the lower metal fitting 47 is in an open state in which it hangs down, so that the state of the fixture 40 can be seen at a glance.

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 Since the lock mechanism 60 is composed of the bent rotating pin 51 and the guide groove 45 g, the material cost and the processing cost of the fixture 40 can be significantly reduced.

Further, an opening 46a is provided in the bottom plate 46 directly below the hooked rotary pin 51, a tool 61 such as a scaffold is inserted into the opening 46a, and the rotary pin 51 is easily hooked or hooked on the guide groove 45g by the principle of leverage. Since the structure is such that the hook can be released, the workability required for the fixing work and the dismantling work of the scaffolding plate 20 in the temporary scaffolding 10 can be improved and the working time can be shortened.

Furthermore, the intermediate members 51c and 51d of the rotating pin 51, which is made by bending a single rod-shaped metal member into a rectangular shape, are shaped like a dogleg to give springiness, so that tension is always applied to the hook. In addition to being able to prevent the rotation pin 51 from coming off, the hardness at the time of hooking the rotating pin 51 on the guide groove 45 g (when locked) or when releasing the hook (when unlocked) is made appropriate to improve workability. Can be improved.

As described above, the workability when fixing the scaffolding plates 21 and 22 is good, and the worker can work safely and with peace of mind on the scaffolding.

In the above embodiment, an example is shown in which one fixture 40 is arranged between the two scaffolding plates 21 and 22 and fixed to the horizontal scaffolding pipe 12, but only one scaffolding plate 21 at the end is used to hold down. Needless to say, it can be fixed to the horizontal scaffolding pipe 12 with the metal fittings 45a or 45b. Further, when fixing both ends of the scaffolding board, it can be fixed to two scaffolding boards with three fixing tools 40, so that the fixing tool to be used is compared with using two fixing tools with two scaffolding boards. The number is small.

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-tube scaffolding pipe, 12 ... Horizontal scaffolding pipe, 13 ... Single-tube scaffolding pipe, 14 ... Scaffolding board, 21, 22 ... Scaffolding board, 21a, 22a ... Scaffolding board body, 40 ... Fixtures , 45 ... upper metal fitting, 45d ... first protruding part, 45f ... second protruding part, 45 g ... guide groove, 46 ... bottom plate, 46a ... opening, 47 ... lower metal fitting, 47a, 48a ... side plate, 47b, 48b ... third Protruding part, 47c, 48c ... 4th protruding part, 47d ... Middle part, 47h ... Protrusion, 47i, 48i, 49i ... Protruding part, 49 ... Regulatory metal fitting, 49a ... Regulatory surface, 51 ... Rotating pin, 51e ... Connecting part, 61 ... Shino.

The fixture of the embodiment is a fixture for fixing a scaffolding plate placed on a fixed single pipe in a direction orthogonal to the axis of the single pipe in the longitudinal direction, and fixing the upper metal fitting and the lower portion. It is equipped with metal fittings and a lock mechanism. The upper metal fittings are provided on 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 of the flat plate portion. It has a first projecting portion and a second projecting portion projecting downward so as to sandwich the single tube from both sides. The lower metal fitting has a third protrusion rotatably supported by the first protrusion, a fourth protrusion that engages with the second protrusion, and the third protrusion and the fourth protrusion facing upward. A single tube was sandwiched between the protruding parts of each other to support the project. The lock mechanism is provided with a lock and unlockable engagement state between the second protrusion and the fourth protrusion, and has a lock pin having a hook shaft rotatably supported by the fourth protrusion, and the first lock mechanism . the second protruding portion, the rotational position of the locking shaft of the locking pin is provided by cutting from the side, the you and a locking pin engaging portion for engaging the lock pin.

Claims (11)

It is a fixture that fixes a scaffolding plate placed on a fixed single pipe with its longitudinal direction oriented in the direction orthogonal to the axis of the single pipe to the single pipe.
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,
The single tube is sandwiched between the protruding portions with the third protruding portion rotatably supported by the first protruding portion and the fourth protruding portion engaging with the second protruding portion facing upward. The lower metal fittings that are projected to support with
A scaffolding fixture provided with a locking mechanism provided on the second protruding portion and the fourth protruding portion so that the engaged state of the protruding portions can be locked and unlocked. The lock mechanism is
A lock pin having a hook shaft rotatably supported by the fourth protrusion,
The first aspect of claim 1, wherein the second protruding portion is provided with a notch from the side at a rotational position of the locking shaft of the lock pin, and is provided with a lock pin locking portion for engaging the lock pin. Scaffolding fixture. The lock pin is
2. The second aspect of the present invention, wherein the rotation shaft is rotatably supported by the hole of the fourth protrusion, an intermediate member bent and connected to the rotation shaft, and a hook shaft connected to the intermediate member. Scaffolding fixtures. The scaffolding fixture according to claim 3, wherein the intermediate member is bent in a dogleg shape. The lock pin hooking portion
The scaffolding fixture according to claim 2, further comprising a protrusion for preventing disengagement due to vibration or the like. The lower metal fitting
The scaffolding fixture according to claim 1, wherein the bottom is provided with an opening for locking or unlocking the engaged state with the inserted tool. The scaffolding fixture according to claim 1, wherein the hooking portion is formed by bending the flat plate portion at right angles in opposite directions to the flat plate portion. The scaffolding fixture according to claim 1, wherein the protrusion length of the second protrusion is made longer than the radius of the single pipe. The scaffolding fixture according to claim 1, wherein a leaf spring urged in the closing direction is passed to the upper metal fitting and the lower metal fitting, and both ends of the leaf spring are fixed to the respective metal fittings. The lower metal fitting
The scaffolding fixture according to claim 1, further comprising a regulating metal fitting that is 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. It is a fixing method in which a scaffolding plate placed on a fixed single pipe with its longitudinal direction oriented in a direction orthogonal to the axis of the single pipe is fixed to the single pipe with a fixture.
From above the scaffolding plate, the hooking portion of the fixture is hooked on the upper surface end portion of the scaffolding plate.
The first projecting portion and the second projecting portion projecting downward from the fixture so as to sandwich the single tube from both sides, and the fixing corresponding to the first projecting portion and the second projecting portion upward. The single tube is sandwiched by engaging the third protruding portion and the fourth protruding portion protruding from the tool.
A method of fixing a scaffold plate with a fixture that locks the engaged state of the protruding portions with a locking mechanism provided on the second protruding portion and the fourth protruding portion.

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