Space Check Device

Abstract

To provide a space confirmation instrument further facilitating on-site inspection before repair work.SOLUTION: A space confirmation instrument 12 is a portable instrument used in on-site inspection before repair work of an elevator. The repair work includes replacement of a new apparatus from an existing apparatus. The space confirmation instrument 12 includes a frame. The frame can be deformed into each of a deployed state and a stored state. The deployed state is a state in which a working space required for performing the maintenance and inspection of the new apparatus is included when the frame is placed in an arrangement based on the existing apparatus. The stored state has occupation volume smaller than that of the deployed state.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present disclosure relates to a space identification instrument. [Background technology]

[0002] Patent Document 1 discloses an example of an elevator machine room. In the elevator machine room, a work space is provided around a hoist and the like. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2005-219918 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the elevator of Patent Document 1, for example, renovation work may be carried out on equipment such as a hoist, including replacing existing equipment with new equipment. At this time, the external dimensions of the existing equipment and the new equipment may differ. In this case, it is necessary to check whether the necessary working space for the new equipment is secured in a site survey before the renovation work. However, since the new equipment has not yet been installed in the site survey, workers must imagine the layout of the new equipment to be installed and carry out the confirmation work. For this reason, it is not easy to carry out a site survey before the renovation work, including the confirmation work.

[0005] The present disclosure relates to solving such problems. The present disclosure provides a space confirmation tool that makes it easier to carry out on-site inspections before renovation work. [Means for solving the problem]

[0006] The space checking device of the present disclosure is a portable space checking device used in on-site surveys prior to elevator renovation work, including the replacement of existing equipment with new equipment, and is equipped with a frame that can be transformed into either an unfolded state that includes the working space required for maintenance and inspection of the new equipment when placed in a position based on the existing equipment, or a stored state that occupies a smaller volume than the unfolded state. Effect of the Invention

[0007] The space checking device according to the present disclosure makes it easier to inspect the site before renovation work. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a configuration diagram of an elevator according to a first embodiment. [Diagram 2] FIG. 2 is a diagram showing an example of a working space of the hoisting machine according to the first embodiment. [Diagram 3] FIG. 2 is a diagram showing an example of a working space of the hoisting machine according to the first embodiment. [Figure 4] FIG. 1 is a perspective view of a space checking tool according to a first embodiment. [Diagram 5] 1 is a diagram showing an example of a field survey using a space checking device according to the first embodiment; [Figure 6] 1 is a diagram showing an example of a field survey using a space checking device according to the first embodiment; [Figure 7] FIG. 11 is a diagram showing an example of a modification of a frame according to the second embodiment. [Figure 8] FIG. 11 is a diagram showing an example of a modification of a frame according to the second embodiment. [Figure 9] FIG. 11 is a diagram showing an example of a modification of a frame according to the second embodiment. [Figure 10] FIG. 11 is a diagram showing an example of a modification of a frame according to the second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present disclosure will be described with reference to the accompanying drawings. In each drawing, the same or corresponding parts are denoted by the same reference numerals, and duplicated descriptions are appropriately simplified or omitted.

[0010] Embodiment 1 FIG. 1 is a configuration diagram of an elevator 1 according to the first embodiment.

[0011] An elevator 1 is applied to, for example, a building having multiple floors. A hoistway 2 for the elevator 1 is provided in the building. The hoistway 2 is a long space in the vertical direction that spans the multiple floors. A machine room 3 for the elevator 1 is provided in the building. The machine room 3 is disposed above the hoistway 2.

[0012] The elevator 1 includes a hoist 4, a hoist base 5, a main rope 6, a car 7, and a counterweight 8. The hoist 4 includes a drive motor 9 and a drive sheave 10. The drive motor 9 is a device that generates a driving force. The drive sheave 10 is a device that rotates by the driving force generated by the drive motor 9. In this example, the direction of the rotation axis of the drive sheave 10 is the front-rear direction, and the side of the hoist 4 on which the drive sheave 10 is provided is the front. The hoist 4 is disposed in the machine room 3. The hoist base 5 is a base that supports the hoist 4. The hoist base 5 is disposed in the machine room 3. The main rope 6 is a rope that supports the load of the car 7 and the counterweight 8 in the hoistway 2. The main rope 6 is wound around the drive sheave 10. The main rope 6 supports the load of the car 7 on one side of the drive sheave 10. The main rope 6 supports the load of the counterweight 8 on the other side of the drive sheave 10. The car 7 is a device that transports users of the elevator 1 between multiple floors by traveling up and down the hoistway 2. The counterweight 8 is a device that balances the loads applied to both sides of the drive sheave 10 between the car 7. The car 7 and the counterweight 8 travel up and down the hoistway 2 in opposite directions by the driving force generated by a drive motor 9.

[0013] The equipment of the elevator 1, such as the hoist 4, requires a work space 11 where workers can perform their work during maintenance and inspection.

[0014] 2 and 3 are diagrams showing an example of the working space 11 of the hoisting machine 4 according to the first embodiment.

[0015] The working space 11 is a spatial region having a polyhedral shape, for example, a rectangular parallelepiped or a polygonal prism. FIG. 2 shows the hoisting machine 4 as seen from the front. The hoisting machine 4 of this example requires a hexagonal prism-shaped working space 11 in front of the drive motor 9. The hoisting machine 4 also requires a rectangular parallelepiped working space 11 below the drive sheave 10. FIG. 3 shows the hoisting machine 4 as seen from above. The hoisting machine 4 of this example requires a rectangular parallelepiped working space 11 behind the drive motor 9.

[0016] Renovation work may be performed on the elevator 1. The renovation work may include, for example, replacing the existing hoisting machine 4 with a new hoisting machine 4 as shown in Figs. 2 and 3. At this time, the shapes and external dimensions of the existing hoisting machine 4 and the new hoisting machine 4 may differ. In this case, in a site inspection carried out before the renovation work, it is necessary to check whether the working space 11 required for the new hoisting machine 4 is secured. A worker performing the site inspection checks whether the working space 11 required for the new hoisting machine 4 is secured using a space checking device 12 not shown in Figs. 1 to 3.

[0017] FIG. 4 is a perspective view of the space checking tool 12 according to the first embodiment.

[0018] The space confirmation device 12 includes a frame 13. The frame 13 can be transformed into an unfolded state and a stored state. The frame 13 in the unfolded state is shown on the left side of Fig. 4. The frame 13 in the stored state is shown on the right side of Fig. 4.

[0019] In the unfolded state, the frame 13 has a space inside. The shape of the space inside the frame 13 corresponds to the shape of the working space 11 to be confirmed whether it is secured in the on-site survey. That is, when the space confirmation device 12 is placed in a position based on the existing hoist 4, the frame 13 in the unfolded state includes the working space 11 of the new hoist 4. Here, the position based on the existing hoist 4 may be, for example, a position adjacent to the existing hoist 4. The position based on the existing hoist 4 may be, for example, a position in which the center line of the frame 13 in the left-right direction is included in a plane perpendicular to the front-rear direction and including the center line of the existing hoist 4 in the left-right direction. The position based on the existing hoist 4 may be a position based on the installation position of the existing hoist 4. The installation position of the existing hoist 4 includes, for example, the position of a bolt or a bolt hole provided in the existing hoist base 5 to fix the existing hoist 4. In this example, the interior space of the frame 13 is in the shape of a polyhedron, i.e., the frame 13 has a polyhedron structure.

[0020] The frame 13 is made up of one or more linear members 14. In this example, the frame 13 is made up of a plurality of linear members 14. Some or all of the linear members 14 are, for example, rod-shaped elastic bodies. Each linear member 14 forms an edge of the space inside the frame 13, which is in the shape of a polyhedron. Some or all of the linear members 14 are provided with a scale 15 for measuring the length along the longitudinal direction. Some or all of the linear members 14 are stretchable in the longitudinal direction. The linear members 14 that are stretchable in the longitudinal direction are, for example, four linear members 14 that intersect with a plane that passes through the center of the frame 13 and is perpendicular to the left-right direction. In this example, the four linear members 14 are applicable. This makes it possible to adjust the left-right length of the frame 13. Alternatively, the linear portion that is stretchable in the longitudinal direction may be, for example, a linear member 14 that passes through the center of the frame 13 and intersects with a plane that passes through the center of the frame 13 and is perpendicular to the front-rear direction. In this example, the four linear members 14 are applicable. This allows the length of the frame 13 in the front-rear direction to be adjusted. Alternatively, the linear portion that can be extended and contracted in the longitudinal direction may be, for example, a linear member 14 that passes through the center of the frame 13 and intersects with a plane perpendicular to the up-down direction. In this example, six linear members 14 are applicable. This allows the length of the frame 13 in the up-down direction to be adjusted. Each linear member 14 extends and contracts by, for example, a telescopic mechanism or a screw mechanism. In each linear member 14, the portion that extends and contracts is, for example, a portion where the scale 15 is not provided. The length of the extendable linear member 14 is adjusted according to the model of the newly installed hoist 4, etc.

[0021] The volume occupied by the frame 13 in the stored state is smaller than the volume occupied by the frame 13 in the unfolded state. The stored state is a state that can be transformed from the unfolded state by disassembling the linear members 14 connected at the vertices of the frame 13 having a polyhedral structure. At this time, the unfolded state is a state that can be transformed from the stored state by connecting the linear members 14 to each other to form the vertices of the frame 13 having a polyhedral structure. The linear members 14 are connected to each other by, for example, a joint. In the stored state, the linear members 14 may be separated, or the ends of the linear members 14 may be connected to each other by a string, rubber, spring, or the like. The frame 13 may include a joint that connects the linear members 14 to each other at the ends, etc.

[0022] The space checking device 12 may include a planar member that forms a surface of the frame 13 having a polyhedral structure. The planar member is, for example, a flexible sheet. The planar member has, for example, a tubular portion at one end through which the linear member 14 passes. The planar member may be attached to the linear member 14 by a hook or a hook-and-loop fastener.

[0023] 5 and 6 are diagrams showing an example of a field survey using the space check tool 12 according to the first embodiment.

[0024] In Fig. 5, the existing hoist 4 as viewed from above is indicated by a solid line, and the new hoist 4 to be installed by the repair work is indicated by a dashed line.

[0025] The space check device 12 is brought to the site with the frame 13 in a stored state. A worker transforms the frame 13 from the stored state to an unfolded state near the hoist 4. In this example, the worker assembles the frame 13 in the unfolded state by connecting a plurality of linear members 14.

[0026] The worker places the frame 13 in an unfolded state in a position based on the existing hoist 4. In this example, the worker places a space check device 12 having a hexagonal column-shaped frame 13 in a position adjacent to the front of the drive motor 9 of the existing hoist 4. The space check device 12 with the frame 13 in an unfolded state contains the working space 11 of the new hoist 4, so the working space 11 is secured if there is enough space to place the space check device 12. For this reason, the worker only needs to check whether the space check device 12 can be placed during the on-site survey, and does not need to measure the distance from the new hoist 4 that has not yet been installed to structures that may interfere by imagining the placement of the new equipment to be installed.

[0027] After the worker checks whether the space check device 12 has been placed, the worker transforms the frame 13 from the deployed state to the stored state. In this example, the worker transforms the frame 13 into the stored state by disassembling the multiple connected linear members 14.

[0028] The worker similarly checks whether a rectangular parallelepiped working space 11 below the drive sheave 10 and a rectangular parallelepiped working space 11 behind the drive motor 9 are secured. At this time, the worker may use a space checking tool 12 having, for example, a rectangular parallelepiped frame 13.

[0029] FIG. 6 shows an example in which a structure interferes with the frame 13 of the space checking device 12.

[0030] In the work space 11 of the newly installed hoist 4, there may be cases where surrounding structures such as columns, beams, piping, or other equipment interfere. Here, since the work space 11 is a space necessary for maintenance and inspection, and is not a space for arranging equipment with a fixed shape, if the degree of interference of the structures is small, a sufficient work space 11 may be secured even if there is interference of the structures. In such a case, the linear member 14 constituting the frame 13 is elastically deformed due to interference with the structures. A worker may determine that the work space 11 is secured when the frame 13 can arrange the elastically deformed space check tool 12. Note that the space check tool 12 can be arranged even if there is a large degree of interference, as the linear member 14 of the frame 13 is more likely to elastically deform. For this reason, the ease of elastic deformation of the linear member 14 of the space check tool 12 may be set according to the tolerance for interference of structures in the work space 11. The tolerance for interference of structures is set according to, for example, the type of new equipment to be installed in the renovation work.

[0031] Furthermore, if a structure interferes with the portion of the linear member 14 marked with the scale 15, a worker can quantitatively grasp the degree of interference by measuring the length of the structure using the scale 15. This makes it easy to determine whether or not the working space 11 is secured.

[0032] The space checking device 12 may be used to check whether the working space 11 is secured for other new equipment of the hoist 4 to be installed in the renovation work. For example, when equipment above the car 7 is replaced in the renovation work, a worker may use the space checking device 12 to check whether the working space 11 for that equipment is secured. The equipment above the car 7 is, for example, a power supply unit.

[0033] Also, the building may not be provided with a machine room 3 for the elevator 1. In this case, the hoisting machine 4 is disposed, for example, at the upper or lower part of the hoistway 2.

[0034] In addition, the shape of the space inside the frame 13 in the unfolded state may be larger than the work space 11, including the work space 11 to be confirmed as being secured during the on-site inspection.

[0035] As described above, the space checking device 12 according to the first embodiment is a portable device used in on-site inspections prior to renovation work on the elevator 1. The renovation work includes replacement of existing equipment with new equipment. The space checking device 12 includes a frame 13. The frame 13 can be transformed into an unfolded state and a stored state. The unfolded state is a state in which, when the frame 13 is placed in an arrangement based on the existing equipment, it contains the working space 11 required for maintenance and inspection of the new equipment. The stored state is a state in which the volume occupied is smaller than that of the unfolded state.

[0036] With this configuration, it is sufficient for a worker to check whether the space checking device 12 can be placed during an on-site inspection. During an on-site inspection, the distance from the new equipment that has not yet been installed to structures that may interfere is not measured, so the accuracy of checking whether the working space 11 can be secured is increased. In addition, since the placement of the space checking device simultaneously checks whether the necessary dimensions are secured at multiple locations, it is less likely that measurements will be missed. In addition, since it is sufficient to place the space checking device 12, it becomes easier for a worker to check whether the working space 11 can be secured even in places where workability is poor. In addition, by transforming into the stored state, the frame 13 can be easily brought to the site. In this way, on-site inspection before renovation work becomes easier.

[0037] Moreover, the frame 13 is made up of one or more linear members 14. At least one of the one or more linear members 14 is extendable and contractible in the longitudinal direction.

[0038] With this configuration, the size of the frame 13 in the unfolded state can be adjusted according to the type or model of the newly installed equipment. Therefore, one space checking device 12 can be used to check whether multiple work spaces are available.

[0039] Moreover, the frame 13 is made up of one or more linear members 14. At least one of the one or more linear members 14 is elastically deformable.

[0040] With this configuration, when the degree of interference between structures is small, it is possible to confirm that a sufficient working space 11 is secured even if there is interference between structures.

[0041] Moreover, the frame 13 is made up of one or more linear members 14. At least one of the one or more linear members 14 is provided with a scale 15 for measuring the length along the longitudinal direction.

[0042] This configuration makes it easy to measure the length of surrounding structures that may interfere with the work space 11. This allows workers to quantitatively grasp the degree of possible interference, making it easier to determine whether the work space 11 is secured.

[0043] In addition, the frame 13 may be one that contains the existing equipment when placed in a position based on the existing equipment in the unfolded state. That is, the frame 13 in the unfolded state may be one that is placed over the existing equipment. This makes it possible to simultaneously check that the work spaces 11 are secured in multiple places even when the work spaces 11 are required in multiple places, such as before and after the newly installed equipment. This makes it easier to carry out a site survey before the renovation work. Here, the linear members 14 that may interfere with the existing equipment when placed in a position based on the existing equipment may be removable from the frame 13 in the unfolded state so as to contain the existing equipment.

[0044] The frame 13 may also be made up of a plurality of subframes. Each subframe is made up of one or more linear members. Each subframe has the same configuration as the frame 13 shown in FIG. 4, for example. Each subframe has a simple shape, such as a rectangular parallelepiped or a cube. By combining a plurality of subframes to form the frame 13, a worker can easily confirm that the work space 11 is secured even when the work space 11 has a complex shape. Each subframe may have a connecting portion that connects the linear members to each other.

[0045] Embodiment 2 In the second embodiment, differences from the example disclosed in the first embodiment will be described in particular detail. For features not described in the second embodiment, any of the features of the example disclosed in the first embodiment may be adopted.

[0046] The transformation between the unfolded state and the stored state of the frame 13 may be achieved without disassembly and assembly. In this example, an example of the frame 13 that transforms from the unfolded state to the stored state by folding is shown. 7 to 10 are diagrams showing examples of modifications of the frame 13 according to the second embodiment.

[0047] FIG. 7 shows an example of the frame 13 in an unfolded state. In this example, the shape of the space inside the frame 13 in the unfolded state is a rectangular parallelepiped shape. The frame 13 is made of a single linear member 14. The linear member 14 is an annular elastic body. The linear member 14 is twisted so as to intersect on the upper surface of the rectangular parallelepiped. The linear member 14 forms a part of the side of the space inside the frame 13, which is a rectangular parallelepiped shape. The frame 13 may have a part or kink having a higher curvature than the adjacent parts at a position corresponding to the apex of the rectangular parallelepiped shape. The frame 13 may include a restraining member 16. The restraining member 16 is a member that restrains the shape of the linear member 14 to keep it in the unfolded shape when the linear member 14 tries to expand beyond the unfolded state due to elastic force. The restraining member 16 is, for example, a linear member 14 having flexibility that does not stretch, such as a string. Alternatively, the restraining member 16 may be a planar member having inextensibility and flexibility that forms the surface of a rectangular parallelepiped space, such as a sheet. The space inside the frame 13 is a space surrounded by the frame 13 that is made up of, for example, the linear member 14 and the restraining member 16. Note that, in cases where the linear member 14 does not tend to expand beyond the deployed state due to elastic force, the space check device 12 does not need to be equipped with a restraining member.

[0048] As shown in FIG. 8, when the frame 13 is transformed from the unfolded state to the stored state, it is folded to form a flat ring wound twice. The worker folds the frame 13 from the state shown in FIG. 7, for example, so that the intersecting parts on the upper surface are parallel. At this time, the restraining member 16 is flexible and does not prevent the frame 13 from being deformed. Then, the worker twists the frame 13 halfway around the center of the ring as shown in FIG. 9. Then, the worker folds the frame 13 in half from the twisted position. As a result, the frame 13 is transformed to the stored state as shown in FIG. 10. In the stored state, the frame 13 forms a flat ring wound four times. In this way, by folding at the twisted position, the number of turns of the frame 13 is doubled from two to four. At this time, the curvature and torsion of the linear member 14 constituting the frame 13 in the stored state are greater than the curvature and torsion in the unfolded state. That is, the linear members 14 constituting the frame 13 are bent more greatly in the stored state than in the deployed state.

[0049] When a worker changes the frame 13 from the stored state to the deployed state, the worker unfolds the frame 13, which is folded into four annular shapes. At this time, the elastic force of the linear members 14, which have been bent significantly, stretches, causing the frame 13 to naturally change shape in the order of the states shown in Figures 10, 9, 8, and 7. Here, the flexible restraining members 16 are slack in the stored state, so they do not impede the deformation of the frame 13 until it reaches the deployed state. This makes it easy to change the frame 13 from the stored state to the deployed state.

[0050] When transforming the frame 13 from the unfolded state to the stored state, the worker may twist the frame 13 folded to form a flat ring at two or more positions halfway around the frame 13. The worker then folds the frame 13 from each of the two or more twisted positions. In this way, the number of turns of the frame 13 is three times or more by folding it at each of the multiple twisted positions. At this time, the stored state of the frame 13 becomes more compact. Also, since the linear members 14 are bent more greatly in the stored state of the frame 13, the elastic force that causes the deformation to the unfolded state becomes greater.

[0051] Furthermore, the frame 13 may be made of a linear member 14 that is not annular. In this case, both ends of the linear member 14 may be connected by a flexible, inextensible restraining member 16. Furthermore, the frame 13 may be made of a plurality of linear members 14. The plurality of linear members 14 may be connected by a flexible, inextensible restraining member 16.

[0052] Furthermore, the frame 13 may be made up of a plurality of subframes. Each subframe is made up of a single linear member. Each subframe has a configuration similar to that of the frame 13 shown in, for example, Figures 7 to 10. Each subframe has a simple shape, for example, a rectangular parallelepiped or a cube. By combining a plurality of subframes into the frame 13, a worker can easily confirm that the work space 11 is secured even when the work space 11 has a complex shape.

[0053] As described above, the frame 13 of the space checking device 12 according to the second embodiment is made up of one or more linear members 14. At least one of the one or more linear members 14 is an elastic body that is bent more in the stored state than in the unfolded state. The frame 13 is deformed to the unfolded state by an elastic force that straightens out the bend of the linear members 14 in the stored state.

[0054] With this configuration, the frame 13 is transformed from the stored state to the deployed state by the elastic energy stored in the linear members 14. Therefore, workers do not need to assemble multiple linear members 14 to place the frame 13 in the deployed state during on-site inspection. This makes it easier to conduct on-site inspections before renovation work. In addition, workers transform the frame 13 from the deployed state to the stored state by twisting and folding it. As the frame 13 is transformed from the deployed state to the stored state through such a simple procedure, it becomes easier to withdraw from the site. This makes it easier to conduct on-site inspections before renovation work. [Explanation of symbols]

[0055] 1 elevator, 2 hoistway, 3 machine room, 4 hoist, 5 hoist base, 6 main rope, 7 cage, 8 counterweight, 9 drive motor, 10 drive sheave, 11 work space, 12 space confirmation device, 13 frame, 14 linear member, 15 scale, 16 restraining member

Claims

1. It is a portable space checking device used in on-site surveys prior to elevator renovation work, including replacing existing equipment with new equipment. A frame that can be transformed into either an unfolded state that includes a work space required for maintenance and inspection of the new equipment when placed in a position based on the existing equipment, or a stored state that occupies a smaller volume than the unfolded state. A space checking device.

2. The frame is made up of one or more linear members, and at least one of the one or more linear members is extendable in the longitudinal direction.

2. The space checking device according to claim 1.

3. The frame is made up of one or more linear members, and at least one of the one or more linear members is elastically deformable.

2. The space checking device according to claim 1.

4. The frame is made of one or more linear members, and at least one of the one or more linear members is provided with a scale for measuring a length along a longitudinal direction.

2. The space checking device according to claim 1.

5. The frame is made of one or more linear members, at least one of which is an elastic body that is bent more in the stored state than in the unfolded state, and the frame is deformed to the unfolded state by an elastic force that straightens the bend of the linear member in the stored state.

2. The space checking device according to claim 1.

6. The frame includes the existing equipment when placed in a position based on the existing equipment in the unfolded state. A space checking device according to any one of claims 1 to 5.

7. The frame is made up of a plurality of subframes, each of which is made up of one or more linear members.

2. The space checking device according to claim 1.

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