JP7120388B1 - scaffolding platform - Google Patents

Abstract

A scaffolding platform that facilitates securing a foothold above existing equipment even when the surroundings of the existing equipment are narrow. A scaffold platform (1) includes a pair of ladder bodies (5) and a scaffold board (6). Each ladder body 5 has a vertical direction as its longitudinal direction. The scaffold board 6 has a horizontal direction as a longitudinal direction. The scaffolding board 6 is detachably spanned between the upper parts of each ladder body 5. - 特許庁Each ladder body 5 includes a pair of struts 8, a plurality of treads 9, and a pair of second wheels 13. Each strut 8 has a vertical direction as its longitudinal direction. Each strut 8 has a grounded first wheel 12 at its lower end. A plurality of treads 9 are arranged so as to be vertically aligned between the pair of pillars 8 . Each second wheel 13 is arranged on the opposite side of the scaffold plank 6 with respect to the pair of stanchions 8 . Each second wheel 13 grounds together with the first wheel 12 . [Selection drawing] Fig. 1

Description

The present disclosure relates to scaffolding platforms.

Patent Literature 1 discloses an example of a scaffolding platform. A pair of ladder bodies and scaffolding boards are provided. A scaffolding board is hung between a pair of ladder bodies.

Japanese Patent Application Laid-Open No. 2003-247338

Here, there are times when work is performed above the existing equipment. At this time, it is necessary to secure a foothold for workers above the existing equipment. In this case, the pair of ladder bodies over which the scaffolding boards are spanned are arranged with the existing facility in between. On the other hand, in the scaffold of Patent Document 1, each ladder body has a triangular shape that widens downward. Therefore, a large space is required on both sides of the existing equipment in order to arrange each ladder body. For this reason, when the surroundings of the existing equipment are narrow, there is a possibility that a foothold for workers cannot be secured.

The present disclosure relates to solving such problems. The present disclosure provides a scaffolding platform that facilitates securing a foothold above existing equipment even when the surroundings of the existing equipment are narrow.

A scaffolding platform according to the present disclosure includes a pair of ladder bodies having a vertical direction as a longitudinal direction, a scaffolding plate having a horizontal direction as a longitudinal direction, and detachably spanned between the upper parts of each of the pair of ladder bodies, and each of the pair of ladder bodies has a vertical direction as a longitudinal direction and a pair of pillars having a first wheel to be grounded at the lower end of each, and arranged so as to be vertically aligned between the pair of pillars a pair of second wheels disposed on the opposite side of the scaffolding board with respect to the pair of supports and grounded together with the first wheel; and the scaffolding board opposite the pair of supports a pair of handrails disposed on the side and attached to the pair of posts one by one, the pair of second wheels being attached one by one to the lower ends of the pair of handrails .
A scaffolding platform according to the present disclosure includes a pair of ladder bodies having a vertical direction as a longitudinal direction, a scaffolding plate having a horizontal direction as a longitudinal direction, and detachably spanned between the upper parts of each of the pair of ladder bodies, and each of the pair of ladder bodies has a vertical direction as a longitudinal direction and a pair of pillars having a first wheel to be grounded at the lower end of each, and arranged so as to be vertically aligned between the pair of pillars a pair of second wheels arranged on the opposite side of the scaffold board with respect to the pair of pillars and grounded together with the first wheels; and the plurality of tread bars with respect to the pair of pillars and a pair of outriggers disposed opposite each other and having at their lower ends a third wheel in contact with the first wheel.

According to the scaffolding stand according to the present disclosure, even when the surroundings of the existing equipment are narrow, it becomes easier to secure a foothold above the existing equipment.

1 is a side view of a scaffolding platform according to Embodiment 1. FIG. 1 is a top view of a scaffolding platform according to Embodiment 1. FIG. 1 is a front view of a scaffolding platform according to Embodiment 1. FIG. 1 is an exploded side view of a scaffolding platform according to Embodiment 1. FIG.

Modes for implementing the subject matter of the present disclosure will be described with reference to the accompanying drawings. In each figure, the same or corresponding parts are denoted by the same reference numerals, and overlapping descriptions are appropriately simplified or omitted. It should be noted that the subject of the present disclosure is not limited to the following embodiments, and any modification of any component of the embodiment, or modification of any component of the embodiment, within the scope of the present disclosure. It can be omitted.

Embodiment 1.
FIG. 1 is a side view of a scaffolding platform 1 according to Embodiment 1. FIG.

A scaffolding platform 1 is a device used to secure a foothold when working at height. The scaffold 1 is used, for example, for maintenance and inspection of an air conditioner installed in a building. The work of maintenance and inspection of the air conditioner is performed, for example, in the ceiling 2 of the building or in the space above the ceiling. An inspection opening 3 is provided in the ceiling 2 . The inspection opening 3 is an opening that leads from below the ceiling 2 to the space above the ceiling. The inspection port 3 is normally closed with a lid. Here, existing equipment 4 may be arranged below the inspection port 3 . The existing facility 4 is, for example, a facility arranged below the inspection opening 3 at the time when the work is performed, such as a shelf whose longitudinal direction is the left-right direction. In this case, the scaffold stand 1 is arranged so as to straddle the existing facility 4 in the front and rear direction so that a foothold for the worker who performs the work can be secured above the existing facility 4 . The scaffolding platform 1 includes a pair of ladder bodies 5, scaffolding boards 6, and a plurality of safety fences 7.

Each ladder body 5 is a device whose longitudinal direction is the vertical direction. One ladder body 5 is arranged in front of the existing facility 4 . The other ladder body 5 is arranged behind the existing facility 4 . Each ladder body 5 has a pair of posts 8, a plurality of treads 9, a pair of handrails 10, and a pair of auxiliary bars 11. - 特許庁

Each strut 8 is a member whose longitudinal direction is the vertical direction. One support 8 is arranged on the left side of the ladder body 5 . The other strut 8 is arranged on the right side of the ladder body 5 . Each strut 8 has a grounded first wheel 12 at its lower end. The first wheel 12 is, for example, a caster with a locking function that suppresses rotation.

Each tread 9 is a member whose longitudinal direction is the horizontal direction. A plurality of treads 9 are arranged so as to be aligned in the vertical direction between the pair of pillars 8 . In this example, the plurality of treads 9 are arranged at equal intervals in the vertical direction.

Each handrail 10 is a member whose longitudinal direction is the vertical direction. One handrail 10 is attached to the support 8 on the left side. The other handrail 10 is attached to the post 8 on the right side. Each handrail 10 is positioned on the opposite side of the scaffold planks 6 with respect to the pair of stanchions 8 . That is, in the front ladder body 5 , each handrail 10 is arranged in front of a pair of posts 8 . Also, in the rear ladder body 5 , each handrail 10 is arranged behind a pair of posts 8 . Each handrail 10 has a grounded second wheel 13 at its lower end. The second wheel 13 is, for example, a caster with a locking function that suppresses rotation. A second wheel 13 provided on each handrail 10 is grounded together with a first wheel 12 provided on each stanchion 8 . Thereby, each ladder body 5 stands on its own even when the scaffold board 6 is removed.

Each auxiliary bar 11 is a rod-shaped member. One auxiliary bar 11 is attached to the upper left side of the left column 8 . The other auxiliary bar 11 is attached to the right side of the top of the right column 8 . That is, each auxiliary bar 11 is arranged on the opposite side of the plurality of treads 9 with respect to the pair of struts 8 . Each auxiliary bar 11 is provided rotatably about the end attached to the column 8 as a rotation axis and about the left-right direction as a rotation axis. Auxiliary bar 11 is provided so as to be lockable in an upward rotating position.

The scaffolding board 6 is a plate-like member that serves as a scaffolding for workers. The scaffold board 6 has a horizontal direction as a longitudinal direction. The scaffold board 6 is spanned between the upper part of the ladder body 5 on the front side and the upper part of the ladder body 5 on the rear side. The scaffolding board 6 comprises a plurality of reinforcing bodies 14 . Each reinforcing body 14 is rotatably attached to the lower surface of the scaffolding board 6 . Some stiffeners 14 are arranged at the front end of the scaffolding board 6 . Another part of the reinforcement 14 is arranged at the rear end of the scaffolding board 6 . A reinforcing body 14 arranged in front is connected to the upper part of the ladder body 5 on the front side. A reinforcing body 14 arranged at the rear is connected to the upper part of the ladder body 5 on the rear side. This increases the strength against deformation of the scaffolding 1 that changes the angle between the scaffolding board 6 and each ladder body 5 .

Each safety fence 7 is a fence-shaped member arranged at the edge of the scaffold board 6 . A part of the safety fence 7 is arranged on the left edge of the scaffold board 6. - 特許庁Another part of the safety fence 7 is arranged on the right edge of the scaffold board 6 . Each safety fence 7 is detachably attached to the scaffold board 6. - 特許庁Each safety fence 7 has a baseboard 15 . A baseboard 15 is attached to the lower end of the safety fence 7 . The baseboard 15 is a plate-like member along the longitudinal direction of the scaffold board 6 .

In this example, the scaffold 1 does not span a reinforcing member such as a crosspiece or a beam between the pair of ladder bodies 5 . That is, in the scaffolding platform 1, only the scaffolding board 6 is spanned between the pair of ladder bodies 5. As shown in FIG.
Also, in this example, the scaffolding board 6 does not have an auxiliary leg or the like that contacts the ground between the pair of ladder bodies 5 . That is, between the pair of ladder bodies 5, none of the components of the scaffolding platform 1 other than the pair of ladder bodies 5 themselves are grounded.

In the scaffold platform 1 , the height of the scaffolding board 6 is determined by the height of each ladder body 5 . The height of each ladder body 5 is set so that the lower surface of the scaffold board 6 is arranged above the existing equipment 4. - 特許庁Further, the height of each ladder body 5 is set to such a height that the worker's upper half of the body can be seen above the ceiling when the worker stands on the scaffold board 6 and works. The height of each ladder body 5 may be a unique height specially designed according to the existing equipment 4 or the like, or may be a height that can be adjusted for each existing equipment 4 .

FIG. 2 is a top view of the scaffolding platform 1 according to Embodiment 1. FIG.

The scaffolding board 6 has hooks 16 at both ends in the longitudinal direction. A hook 16 at the front end of the scaffold board 6 is hung on the upper part of the ladder body 5 on the front side. A hook 16 at the rear end of the scaffolding board 6 is hung on the upper part of the ladder body 5 on the rear side. That is, the scaffold board 6 is spanned between the pair of ladder bodies 5 by the hooks 16 at both ends in the longitudinal direction.

In each ladder body 5 , the distance between a pair of handrails 10 is matched to the width of the scaffolding board 6 .

FIG. 3 is a front view of the scaffolding platform 1 according to Embodiment 1. FIG.

Each ladder body 5 is provided with a pair of outriggers 17 . A pair of outriggers 17 are members that enhance the stability of the scaffolding 1 . One outrigger 17 is attached to the lower left side of the left support column 8 . The other outrigger 17 is attached to the lower right side of the right strut 8 . That is, each outrigger 17 is arranged on the opposite side of the plurality of treads 9 with respect to the pair of struts 8 . In this example, each outrigger 17 is positioned within a vertical plane that includes a pair of stanchions 8 and a plurality of treads 9 . Each outrigger 17 has a grounded third wheel 18 at its lower end. The third wheel 18 is, for example, a caster with a locking function that suppresses rotation. A third wheel 18 on each outrigger 17 grounds together with a first wheel 12 on each strut 8 .

In each ladder body 5 , the width of the treads is matched to the width of the scaffolding board 6 .

Next, an example of work using the scaffold 1 will be described with reference to FIG.
4 is an exploded side view of the scaffolding platform 1 according to Embodiment 1. FIG.

The worker carries the disassembled scaffolding 1 to the work site. The scaffolding platform 1 is disassembled into, for example, a pair of ladder bodies 5, scaffolding boards 6, and a plurality of safety fences 7. As shown in FIG. The auxiliary bar 11 is arranged in a rotated position toward the lower end of the column 8 when it is carried in. As shown in FIG. After carrying in, the worker assembles the scaffold 1, for example, as follows.

A worker arranges one ladder body 5 in front of the existing facility 4 . Also, the other ladder body 5 is arranged behind the existing facility 4 . At this time, each ladder body 5 is in a self-supporting state by the first wheels 12, the second wheels 13, and the third wheels 18. As shown in FIG. Here, when the first wheel 12, the second wheel 13, and the third wheel 18 are casters with a lock function, the lock function is released in each caster. Therefore, the worker can easily arrange each ladder body 5 in front of and behind the existing equipment 4 . In addition, since the ladder body 5 that is long in the vertical direction can move around the work site in a self-supporting state, even if the surroundings of the existing facility 4 are narrow, the worker can easily move the ladder body 5 to the front and back of the existing facility 4. can be placed in

After that, the worker spans the scaffolding board 6 over the upper part of the pair of ladder bodies 5. - 特許庁After the scaffold board 6 is stretched over, the worker connects the reinforcing body 14 arranged in front to the upper part of the ladder body 5 on the front side. Also, the worker connects the rear reinforcing body 14 to the upper part of the ladder body 5 on the rear side. After that, if the first wheel 12, the second wheel 13 and the third wheel 18 are casters with locking function, the operator activates the locking function on each caster.

The worker then attaches each safety fence 7 to the edge of the scaffolding board 6 . In this example, the worker inserts the lower end of the safety fence 7 into the mounting tube 19 provided on the edge of the scaffold board 6 . After that, the worker fixes the safety fence 7 by fastening with fasteners such as screws from the outside of the mounting tube 19 .

After that, the operator rotates each auxiliary bar 11 to the upward rotating position. The operator locks each auxiliary bar 11 with it facing upward.

After assembling the scaffolding platform 1 in this way, the worker climbs, for example, from the front ladder body 5 to the scaffolding board 6 . At this time, the worker climbs up the ladder body 5 by sequentially stepping on the plurality of treads 9 while holding the left and right handrails 10 with both hands.

The worker hangs the rope of the safety belt that he is wearing on the safety fence 7 on the scaffold board 6. - 特許庁The worker removes the cover of the inspection opening 3 on the scaffold board 6. - 特許庁A worker puts the upper half of the body in the ceiling space through the inspection opening 3 and performs maintenance inspection and the like. After that, the worker exits from the ceiling space through the inspection door 3. A worker attaches the cover of the inspection port 3 on the scaffold board 6. - 特許庁The worker removes the rope of the safety belt from the safety fence 7 . A worker descends from the scaffold board 6 onto the floor through the front ladder body 5, for example.

After that, if there is another inspection opening 3 for performing work such as maintenance, the worker moves the scaffolding 1 to the other inspection opening 3 . At this time, the worker may move the scaffolding platform 1 while it is assembled. Here, when the first wheel 12, the second wheel 13, and the third wheel 18 are casters with a lock function, the worker releases the lock function of each caster before moving the scaffolding 1. . The worker uses the scaffolding 1 moved below the inspection opening 3 to work through the inspection opening 3 .

After that, the worker disassembles the scaffold 1 by reversing the assembly procedure. The worker carries out the disassembled scaffolding platform 1 from the work site.

As described above, the scaffolding platform 1 according to Embodiment 1 includes a pair of ladder bodies 5 and scaffolding boards 6 . Each ladder body 5 has a vertical direction as its longitudinal direction. The scaffold board 6 has a horizontal direction as a longitudinal direction. The scaffolding board 6 is detachably spanned between the upper parts of each ladder body 5. - 特許庁Each ladder body 5 includes a pair of struts 8, a plurality of treads 9, and a pair of second wheels 13. Each strut 8 has a vertical direction as its longitudinal direction. Each strut 8 has a grounded first wheel 12 at its lower end. A plurality of treads 9 are arranged so as to be vertically aligned between the pair of pillars 8 . Each second wheel 13 is arranged on the opposite side of the scaffold plank 6 with respect to the pair of stanchions 8 . Each second wheel 13 grounds together with the first wheel 12 .

With such a configuration, the ladder body 5 that is long in the vertical direction can move around the work site in a self-supporting state. can be easily placed in front of and behind the Moreover, since the ladder body 5 has its longitudinal direction in the vertical direction, the floor area occupied by each ladder body 5 is reduced. Therefore, even if the existing facility 4 is narrow, the worker can easily arrange the ladder body 5 around the existing facility 4 . This makes it easier to secure a foothold above the existing equipment 4 even when the surroundings of the existing equipment 4 are narrow.

Each ladder body 5 also has a pair of handrails 10 . Each handrail 10 is positioned on the opposite side of the scaffold planks 6 with respect to the pair of stanchions 8 . The handrails 10 are attached to a pair of posts 8 one by one. The second wheels 13 are attached to the lower ends of the pair of handrails 10 one by one.

Such a configuration makes it easier for workers to climb the assembled ladder body 5 . In addition, the support 8 and the handrail 10 improve the weight balance of each ladder body 5 in the front and rear direction, so that the stability of the independent ladder body 5 is enhanced.

Each ladder body 5 also includes a pair of outriggers 17 . Each outrigger 17 is arranged on the opposite side of the plurality of treads 9 with respect to the pair of struts 8 . Each outrigger 17 has a third wheel 18 at its lower end which is grounded together with the first wheel 12 .

With such a configuration, the width of the ladder body 5 in the left-right direction is increased, so that the stability of the independent ladder body 5 and the stability of the scaffolding 1 in the assembled state are enhanced.

Each ladder body 5 is also provided with a pair of auxiliary bars 11 . Each auxiliary bar 11 is arranged on the opposite side of the plurality of treads 9 with respect to the pair of struts 8 . Each auxiliary bar 11 protrudes upward from the scaffold board 6 .

Such a configuration makes it easier for the worker to visually recognize the position of the column 8 in the front-rear direction by means of the auxiliary bar 11 while working on the scaffolding board 6 . Since the position of the post 8 in the front-rear direction is the position of the end of the scaffolding board 6 , the worker can easily grasp the position of the end of the scaffolding board 6 . This makes it easier to work on the scaffolding board 6 . In addition, since the auxiliary bar 11 is arranged outside the pair of pillars 8, it is less likely to hinder the operator from ascending and descending the ladder body 5.例文帳に追加

Moreover, the scaffolding platform 1 is provided with a safety fence 7. - 特許庁The safety fence 7 is detachably attached to the edge of the scaffolding board 6 along the longitudinal direction of the scaffolding board 6. - 特許庁

Such a configuration makes it easier for workers to grasp the position of the edge of the scaffolding board 6 during work on the scaffolding board 6 . In addition, a place to attach a safety device such as a safety belt rope is secured. This makes it easier to work on the scaffolding board 6 .

Moreover, the safety fence 7 has a baseboard 15 along the longitudinal direction of the scaffold board 6 at its lower end.

Such a configuration makes it easier for workers to confirm the position of the edge of the scaffolding board 6 with their feet while working on the scaffolding board 6 . Therefore, the worker can easily check the position of the edge of the scaffolding board 6 even in a situation where it is difficult to visually recognize his/her feet, such as during work in the ceiling space. This makes it easier to work on the scaffolding board 6 .

Also, only the scaffold board 6 is spanned between the pair of ladder bodies 5 .
Also, between the pair of ladder bodies 5, none of the components of the scaffold 1 other than the pair of ladder bodies 5 are grounded.

With such a configuration, the space surrounded by the pair of ladder bodies 5 and the scaffolding board 6 can be widened. Therefore, even when the existing equipment 4 is large, the scaffolding platform 1 makes it easy to secure a foothold above the existing equipment 4 .

1 Scaffold 2 Ceiling 3 Inspection Door 4 Existing Equipment 5 Ladder Body 6 Scaffolding Board 7 Safety Fence 8 Support Post 9 Stepper 10 Handrail 11 Auxiliary Bar 12 First Wheel 13 Second Wheel , 14 reinforcement, 15 baseboard, 16 hook, 17 outrigger, 18 third wheel, 19 mounting tube

Claims (8)

a pair of ladder bodies whose longitudinal direction is the vertical direction;
a scaffold board whose longitudinal direction is the horizontal direction and which is detachably spanned between the upper parts of each of the pair of ladder bodies;
with
each of the pair of ladder bodies,
a pair of struts having a vertical direction as a longitudinal direction and having a grounded first wheel at each lower end;
a plurality of stepping bars arranged vertically between the pair of pillars;
a pair of second wheels disposed on the opposite side of the scaffold board with respect to the pair of pillars and grounded together with the first wheels;
a pair of handrails arranged on the opposite side of the scaffolding board with respect to the pair of pillars and attached one by one to the pair of pillars;
with
The pair of second wheels are attached to the lower ends of the pair of handrails one by one.
scaffolding platform. each of the pair of ladder bodies,
a pair of outriggers arranged on the opposite side of the plurality of treads with respect to the pair of struts, each having a third wheel at the lower end thereof grounded together with the first wheel.
The scaffolding platform according to claim 1 . a pair of ladder bodies whose longitudinal direction is the vertical direction;
a scaffold board whose longitudinal direction is the horizontal direction and which is detachably spanned between the upper parts of each of the pair of ladder bodies;
with
each of the pair of ladder bodies,
a pair of struts having a vertical direction as a longitudinal direction and having a grounded first wheel at each lower end;
a plurality of stepping bars arranged vertically between the pair of pillars;
a pair of second wheels disposed on the opposite side of the scaffold board with respect to the pair of pillars and grounded together with the first wheels;
a pair of outriggers arranged on the opposite side of the plurality of treads with respect to the pair of struts and having a third wheel at the lower end of each of which is grounded together with the first wheel;
A scaffolding platform with a each of the pair of ladder bodies,
The scaffolding platform according to any one of claims 1 to 3, further comprising a pair of auxiliary bars disposed on the opposite side of the plurality of step bars with respect to the pair of pillars and projecting upward from the scaffolding board. . The scaffolding platform according to any one of claims 1 to 4, further comprising a safety fence detachably attached to the edge of the scaffolding board along the longitudinal direction of the scaffolding board. The scaffolding platform according to claim 5, wherein the safety fence has a baseboard along the longitudinal direction of the scaffolding board at its lower end. The scaffolding platform according to any one of claims 1 to 6, wherein only the scaffolding board is spanned between the pair of ladder bodies. The scaffolding platform according to any one of claims 1 to 7, wherein no part is grounded between the pair of ladder bodies.

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