JP6953993B2 - Work scaffolding device for escalator and work scaffold installation method - Google Patents

Description

The present invention relates to a work scaffolding device for an escalator and a method for installing a work scaffold.

Patent Document 1 discloses a work scaffolding device for an escalator. The worker can work on the ceiling of the escalator on the work table of the work scaffolding device.

Japanese Unexamined Patent Publication No. 11-147648

However, the work scaffolding device described in Patent Document 1 is fixed to one of a pair of handrails. For this reason, the balance may be lost when the worker gets on the work table.

The present invention has been made to solve the above-mentioned problems. An object of the present invention is to provide a work scaffolding device for an escalator that can prevent an operator from losing balance when he / she gets on a work table.

The work scaffolding device for an escalator according to the present invention includes a workbench that spans a plurality of adjacent steps in the escalator, and a step other than the step on the uppermost side of the escalator among the plurality of steps that the workbench straddles. When it is fixed to the workbench above the workbench and a step of a plurality of steps straddling the workbench is formed, the step other than the step on the uppermost side of the escalator among the plurality of steps straddling the workbench is formed. A telescopic mechanism that extends to maintain contact with the steps and supports the workbench, and the workbench above the step on the uppermost side of the escalator of the plurality of steps that the workbench straddles. It was equipped with a stacking weight.
The work scaffolding device for an escalator according to the present invention includes a workbench that spans a plurality of adjacent steps in the escalator, and a step other than the step on the uppermost side of the escalator among the plurality of steps that the workbench straddles. When a step of a plurality of steps straddling the workbench is formed by being fixed to the workbench above the workbench, the step other than the step on the uppermost side of the escalator among the plurality of steps straddling the workbench is formed. A telescopic mechanism that extends to maintain contact with the steps and supports the workbench, and the workbench above the step on the uppermost side of the escalator of the plurality of steps that the workbench straddles. A movement restrictor provided at the bottom and having a groove that meshes with the groove of the step on the uppermost side of the escalator among the plurality of steps across the workbench.
Equipped with.

The method for installing a work scaffold for an escalator according to the present invention is other than a work table that spans a plurality of adjacent steps in the escalator and a step on the uppermost side of the escalator among the plurality of steps that the work table straddles. When it is fixed to the workbench above the step and a step of a plurality of steps straddling the workbench is formed, the step other than the step on the uppermost side of the escalator among the plurality of steps straddling the workbench. In the method of installing the work scaffolding device of the escalator provided with the telescopic mechanism for supporting the workbench by extending so as to maintain contact with the step, the telescopic mechanism of the work scaffolding device is contracted. In the installation step of installing the work scaffolding device in a plurality of adjacent steps in the horizontal portion of the escalator, and after the installation step, the escalator is operated to move the work scaffolding device to the inclined portion of the escalator. It is provided with a support step of supporting the workbench by extending the expansion / contraction mechanism.

According to these inventions, the telescopic mechanism extends to maintain contact with the step and supports the workbench. Therefore, it is possible to prevent the worker from losing the balance when he / she gets on the work table.

It is a block diagram of the escalator to which the work scaffolding device of the escalator in Embodiment 1 is applied. It is a vertical sectional view of the scaffolding device for work of an escalator in Embodiment 1. FIG. It is a vertical sectional view of the scaffolding device for work of an escalator in Embodiment 1. FIG. It is a top view of the work table of the scaffolding device for work of the escalator in Embodiment 1. FIG. It is a vertical sectional view of the work table of the scaffolding device for work of the escalator in Embodiment 1. FIG. It is a vertical sectional view of the telescopic body of the scaffolding device for work of the escalator in Embodiment 1. FIG. It is a vertical sectional view of the telescopic body of the scaffolding device for work of the escalator in Embodiment 1. FIG. It is a top view of the telescopic body of the scaffolding device for work of the escalator in Embodiment 1. FIG. It is a top view when the work table of the scaffolding device for work of an escalator in Embodiment 2 is seen from the bottom. It is a front view of the work table of the scaffolding device for work of the escalator in Embodiment 2. FIG.

Embodiments will be described with reference to the accompanying drawings. In each figure, the same or corresponding parts are designated by the same reference numerals. The duplicate description of the relevant part will be simplified or omitted as appropriate.

Embodiment 1.
FIG. 1 is a configuration diagram of an escalator to which the work scaffolding device for the escalator according to the first embodiment is applied.

In FIG. 1, the escalator straddles the adjacent floors. The lower entrance 1 is provided on the lower floor of the adjacent floors. The upper entrance 2 is provided on the upper floor of the adjacent floors.

The plurality of steps 3 are provided between the lower entrance / exit 1 and the upper entrance / exit 2. The plurality of steps 3 are provided in an endless manner.

One of the pair of skirt guards 4 is adjacent to one side of the plurality of steps 3. The other side of the pair of skirt guards 4 is adjacent to the other side of the plurality of steps 3. One of the pair of balustrades 5 is fixed to the upper part of one of the pair of skirt guards 4. The other of the pair of balustrades 5 is fixed to the upper part of the other of the pair of skirt guards 4.

One of the pair of guide rails 6 is provided on the upper part of one of the pair of balustrades 5. The other of the pair of guide rails 6 is provided above the other of the pair of balustrades 5. One of the pair of handrails 7 is formed in an endless shape. One of the pair of handrails 7 is guided by one of the pair of guide rails 6. The other side of the pair of handrails 7 is formed in an endless shape. The other of the pair of handrails 7 is guided by the other of the pair of guide rails 6.

When the escalator is set to ascend operation, the lower entrance / exit 1 is the entrance. The upper entrance / exit 2 is an exit. When the escalator starts the ascending operation, the plurality of steps 3 and the pair of handrails 7 move in synchronization with each other.

When the escalator is set to descend, the upper entrance / exit 2 becomes the entrance. The lower entrance / exit 1 is an exit. When the escalator starts the descending operation, the plurality of steps 3 and the pair of handrails 7 move in synchronization with each other.

The worker uses the work scaffolding device 8 when performing work on the ceiling of the escalator. For example, the worker uses the work scaffolding device 8 when installing or replacing the lighting.

Next, the work scaffolding device 8 will be described with reference to FIGS. 2 and 3.
2 and 3 are vertical cross-sectional views of the work scaffolding device for the escalator according to the first embodiment.

As shown in FIG. 2, the work scaffolding device 8 includes a work table 9, an expansion / contraction mechanism 10, and a weight 11.

For example, the workbench 9 is formed in a rectangular shape. It is provided so as to straddle a plurality of adjacent steps 3.

The expansion / contraction mechanism 10 includes a plurality of expansion / contraction bodies 12.

Each of the plurality of stretchable bodies 12 is provided so as to be stretchable. Each of the plurality of stretchable bodies 12 is provided so as to be able to switch between a non-shrinkable setting and a shrinkable setting. Each of the plurality of telescopic bodies 12 is fixed to the work table 9 by screws 13.

Specifically, the plurality of telescopic bodies 12 are the side of the uppermost part of the escalator among the plurality of steps 3 when the workbench 9 straddles the upper part of the plurality of steps 3 in the horizontal portion of the lower part or the upper part of the escalator. It is provided so as to be stacked on each of a plurality of adjacent steps 3 other than step 3.

For example, the weight 11 is provided in a rectangular parallelepiped shape. The weight 11 has a weight that allows the workbench 9 to maintain a horizontal state on step 3 when the plurality of telescopic bodies 12 expand and contract.

When the escalator is operated when each of the settings of the plurality of stretchable bodies 12 is set so as not to contract, each of the plurality of stretchable bodies 12 is placed on the workbench 9 at the inclined portion of the escalator, as shown in FIG. And the height difference between each of the plurality of steps 3 is extended by its own weight. As a result, the plurality of telescopic bodies 12 support the workbench 9 while maintaining the upper surface of the workbench 9 horizontally.

After that, the escalator is operated until the work table 9 reaches directly under the work place on the ceiling of the escalator. After that, the weight 11 is stacked on the workbench 9 above step 3 on the uppermost side of the escalator among the plurality of steps 3 straddling the workbench 9. As a result, the workbench 9 is stable with the upper surface horizontal.

In this state, the worker gets on the work table 9 and works on the ceiling of the escalator. When the work on the ceiling of the escalator is completed, the worker gets off the work table 9.

After that, the setting of each of the plurality of stretchable bodies 12 is switched to the setting of contraction. After that, the escalator is operated until the work scaffolding device 8 reaches the horizontal portion at the bottom or the top of the elevator.

At this time, there are no steps in the plurality of steps 3 below the work table 9. As a result, each of the plurality of stretchable bodies 12 contracts. In this state, the workbench 9, the weight 11, and the telescopic body 12 are removed.

Next, the workbench 9 will be described with reference to FIGS. 4 and 5.
FIG. 4 is a plan view of the work table of the work scaffolding device for the escalator according to the first embodiment. FIG. 5 is a vertical cross-sectional view of the work table of the work scaffolding device for the escalator according to the first embodiment.

In FIGS. 4 and 5, the width dimension of the workbench 9 is provided according to the width dimension of step 3 (not shown in FIGS. 4 and 5). The depth dimension of the workbench 9 is determined according to the situation according to the total depth dimension of the plurality of steps 3.

The workbench 9 includes a plurality of screw holes 9a. Each of the plurality of screw holes 9a is formed corresponding to a screw 13 (not shown in FIGS. 4 and 5).

Next, the stretchable body 12 will be described with reference to FIGS. 6 to 8.
6 and 7 are vertical cross-sectional views of the telescopic body of the scaffolding device for work of the escalator according to the first embodiment. FIG. 8 is a plan view of the telescopic body of the work scaffolding device for the escalator according to the first embodiment.

As shown in FIGS. 6 and 7, the stretchable body 12 includes a base portion 12a, a contact portion 12b, and a pair of stretchable portions 12c.

The base portion 12a is formed in a rectangular shape. The width dimension of the base portion 12a is provided according to the width dimension of step 3. The depth dimension of the base portion 12a is determined according to the depth dimension of step 3. The base 12a is formed so that it can be fixed to a workbench 9 (not shown in FIGS. 6 and 7).

The contact portion 12b is formed in a rectangular shape. The width dimension of the contact portion 12b is provided according to the width dimension of step 3. The depth dimension of the contact portion 12b is determined according to the depth dimension of step 3. The contact portion 12b is formed so that it can be stacked in step 3.

One of the pair of telescopic portions 12c is provided so as to be stretchable. One of the pair of telescopic portions 12c is realized by a pantograph structure. One of the pair of telescopic portions 12c is connected to one side of the base portion 12a and one side of the contact portion 12b.

The other of the pair of telescopic portions 12c is provided so as to be stretchable. The other of the pair of telescopic portions 12c is realized by a pantograph structure. The other side of the pair of telescopic portions 12c is connected to the other side of the base portion 12a and the other side of the contact portion 12b.

Each of the pair of telescopic portions 12c includes a stopper (not shown). For example, the stopper is provided at at least one joint of each of the pair of telescopic portions 12c. For example, the stopper is a ratchet mechanism.

When the stopper is functioning, the movement of the telescopic portion 12c in the contraction direction is restricted. As a result, the setting of the stretchable body 12 is a setting that does not shrink.

When the stopper is released, the movement of the telescopic portion 12c in the contraction direction is not regulated. As a result, the setting of the stretchable body 12 is set to contract.

As shown in FIG. 8, the base 12a includes a plurality of screw holes 12d. Each of the plurality of screw holes 12d is formed corresponding to a screw 13 (not shown in FIG. 8).

According to the first embodiment described above, the expansion / contraction mechanism 10 extends so as to maintain contact with the step 3 and supports the work table 9. Therefore, it is possible to prevent the balance from being lost when the worker gets on the work table 9.

Specifically, when the work scaffolding device 8 moves from the horizontal portion to the inclined portion of the escalator, the plurality of telescopic bodies 12 extend according to the difference in height between the work table 9 and the step 3. Therefore, the work scaffolding device 8 can be easily installed.

Further, the weight 11 is stacked on the work table 9 above the step 3 on the uppermost side of the escalator among the plurality of steps 3. Therefore, the stability of the workbench 9 can be ensured.

Further, when the work scaffolding device 8 moves from the inclined portion of the escalator to the horizontal portion, the plurality of elastic bodies 12 contract. Therefore, the work scaffolding device 8 can be easily removed.

Further, when the stopper is functioning, the operation of the expansion / contraction portion 12c in the contraction direction is restricted. Therefore, the reinforcing work for maintaining the stretched state of the stretchable portion 12c becomes unnecessary.

Depending on the situation, it is not necessary to use the central stretchable body 12 among the plurality of stretchable bodies 12.

Embodiment 2.
FIG. 9 is a plan view of the work table of the work scaffolding device for the escalator according to the second embodiment as viewed from below. FIG. 10 is a front view of the work table of the work scaffolding device for the escalator according to the second embodiment.

The work scaffolding device 8 of the second embodiment is a device in which a movement restricting body 14 and an operating body 15 are added to the work scaffolding device 8 of the first embodiment.

As shown in FIG. 9, the movement restricting body 14 is provided on one side of the workbench 9 at the lower part of the workbench 9. The movement restricting body 14 includes a plurality of grooves 14a. Although step 3 is not shown in FIG. 9, the plurality of grooves 14a are provided so as to mesh with the groove of step 3 on the uppermost side of the escalator among the plurality of steps 3 in which the workbench 9 straddles.

As shown in FIG. 10, the operating body 15 is provided on the workbench 9. For example, the operating body 15 penetrates one side of the workbench 9. For example, the operating body 15 is a rotary lever. For example, the operating body 15 is provided so as to be foldable. The operating body 15 is provided so that it can be arranged at the first position and the second position according to the operation by the operator.

When the operating body 15 is arranged at the first position, the movement restricting body 14 is arranged at a position where the plurality of grooves 14a are released from the engagement with the groove of step 3 (not shown in FIG. 10). When the operating body 15 is arranged at the second position, the movement restricting body 14 is arranged at a position where the plurality of grooves 14a mesh with the grooves of step 3.

According to the second embodiment described above, the plurality of grooves 14a of the movement restricting body 14 mesh with the grooves of step 3. Therefore, it is possible to prevent the workbench 9 from shifting in the width direction of the step 3 from the step 3 on the uppermost side of the escalator among the plurality of steps 3 straddling the workbench 9.

Further, when the operating body 15 is arranged at the first position, the movement restricting body 14 is arranged at a position where the plurality of grooves 14a are released from the engagement with the grooves in step 3. When the operating body 15 is arranged at the second position, the movement restricting body 14 is arranged at a position where the plurality of grooves 14a mesh with the grooves of step 3. Therefore, the work scaffolding device 8 can be easily installed and removed.

At least one of the plurality of telescopic bodies 12 may be a pneumatic cylinder type jack. In this case, if air is taken into the inside of the jack, the jack can be freely operated in the extension direction.

At this time, as in the first embodiment, the operation of the jack in the contraction direction may be provided with a stopper that regulates the regulation. Further, a lever or a switch for adjusting the length of the jack after extension may be provided.

Further, if a cushioning function is added to the pneumatic cylinder type jack, it is possible to prevent the jack from suddenly contracting due to a sudden change in air pressure. As a result, when the work scaffolding device 8 moves from the inclined portion of the escalator to the horizontal portion, the plurality of telescopic bodies 12 gradually contract according to the height of the work table 9 and the step 3. Therefore, the work scaffolding device 8 can be easily and safely removed.

1 Lower entrance / exit, 2 Upper entrance / exit, 3 steps, 4 Skirt guard, 5 balustrade, 6 guide rail, 7 handrail, 8 work scaffolding device, 9 workbench, 9a screw hole, 10 expansion / contraction mechanism, 11 weight, 12 expansion / contraction Body, 12a base, 12b contact part, 12c telescopic part, 12d screw hole, 13 screws, 14 movement restricting body, 15 operating body

Claims (6)

A workbench that spans multiple adjacent steps on an escalator,
When the workbench is fixed to the workbench above the steps other than the step on the uppermost side of the escalator among the plurality of steps straddling the workbench, and a step of the plurality of steps straddling the workbench is formed. An expansion / contraction mechanism that supports the workbench by extending so as to maintain contact with a step other than the step on the uppermost side of the escalator among the plurality of steps that the workbench straddles.
A weight that is stacked on the workbench above the step on the uppermost side of the escalator among the plurality of steps that the workbench straddles.
Work platform apparatus of e Sukareta equipped with. A workbench that spans multiple adjacent steps on an escalator,
When the workbench is fixed to the workbench above the steps other than the step on the uppermost side of the escalator among the plurality of steps straddling the workbench, and a step of the plurality of steps straddling the workbench is formed. An expansion / contraction mechanism that supports the workbench by extending so as to maintain contact with a step other than the step on the uppermost side of the escalator among the plurality of steps that the workbench straddles.
The uppermost part of the escalator is provided at the lower part of the workbench above the step on the uppermost side of the escalator among the plurality of steps across the workbench, and the uppermost part of the escalator among the plurality of steps across the workbench. a movement restricting member provided with a groove and meshing groove side of the steps,
Work platform apparatus of e Sukareta equipped with. When the movement restricting body is arranged so that the position of the groove of the movement restricting body is released from the engagement with the groove of the step when it is arranged in the first position, and is arranged in the second position. An operating body that arranges the movement restricting body so that the position of the groove of the movement restricting body is in a position where it meshes with the groove of the step.
The work scaffolding device for an escalator according to claim 2. The expansion and contraction mechanism
The workbench is provided on the workbench above each of a plurality of adjacent steps other than the step on the uppermost side of the escalator among the plurality of steps straddling the workbench, and the workbench and the upper side of the escalator are provided. A plurality of telescopic bodies that extend according to the height difference from each of a plurality of adjacent steps other than the step of, and support the workbench.
The work scaffolding device for an escalator according to any one of claims 1 to 3, wherein the scaffolding device for work of the escalator is provided. A workbench that spans multiple adjacent steps on an escalator,
When the workbench is fixed to the workbench above the steps other than the step on the uppermost side of the escalator among the plurality of steps straddling the workbench, and a step of the plurality of steps straddling the workbench is formed. An expansion / contraction mechanism that supports the workbench by extending so as to maintain contact with a step other than the step on the uppermost side of the escalator among the plurality of steps that the workbench straddles.
In the installation method of the work scaffolding device of the escalator equipped with
An installation step of installing the work platform apparatus in a plurality of steps adjacent the horizontal portion of the escalator in a state in which the extension mechanism deflated the work platform apparatus,
After the installation step, the escalator is operated to move the work scaffolding device to the inclined portion of the escalator, and the expansion / contraction mechanism is extended to support the work table.
How to install scaffolding for work on an escalator equipped with. After the support step, a setting change step of changing the setting of the work scaffolding device to a setting of contracting the expansion / contraction mechanism, and a setting change step.
After the setting change step, the escalator is operated to move the work scaffolding device to the horizontal portion of the escalator, and the work table and the expansion / contraction mechanism are removed in a state where the expansion / contraction mechanism is contracted. When,
The method for installing a scaffold for work on an escalator according to claim 5.

Images