JP5136353B2 - Coating material removing apparatus and coating material removing method - Google Patents

Description

  The present invention relates to a covering material removing apparatus and a covering material removing method, and more particularly to a covering material removing apparatus and a covering material removing method for removing a covering material attached to a wall surface or a steel frame in an elevator hoistway.

  A coating material is attached to the wall surface of a building or the surface of a steel frame used for a beam or the like to improve the heat resistance (fire resistance) of the wall surface or the steel frame.

  When such a covering material is found to be harmful to the human body after completion of the building, such as asbestos, it causes a situation in which the covering material must be removed from the steel frame etc. while preventing the dust from spreading to the surroundings. It will be.

  In order to cope with such a situation, a technique is adopted in which the covering material is peeled off from the wall surface or the steel frame in a state where the entire site is isolated with a vinyl sheet or the like in order to prevent the covering material from scattering (Patent Document 1). ).

    Japanese Patent Application Laid-Open No. 2004-305904 (paragraph number 0014)

  By the way, a covering material may be attached to the wall surface and the surface of the steel frame in the elevator hoistway installed in the building. When removing the covering material in such a place, the conventional method for removing the covering material as described above needs to isolate the entire space in the hoistway. Therefore, the elevator cannot be used until the covering material removing operation is completed over the entire floor. For this reason, when performing the removal operation | work of a coating | covering material in the hoistway of the elevator installed in the building in use, you must stop use of an elevator for a long period of time, and it is especially inconvenient.

  Further, in the conventional method for removing the covering material, after the entire space in the hoistway is isolated, a scaffold having a considerable height must be assembled so that the worker can also work on the upper floor. Moreover, it is necessary to strictly ensure safety so that the worker can work safely at the work site of such height. Therefore, the installation work of the workplace at the site becomes large and the installation work becomes complicated. Also, the removal work on the upper floor on such a scaffold is a considerable heavy labor for the worker.

  Further, in the elevator, structural parts such as guide rails and ropes for raising and lowering the car, and various sensors are provided. For this reason, in the conventional method of isolating the entire inside of the hoistway, in order to prevent the scattering inhibitor and the coating material sprayed to prevent the coating material from scattering, adhere to these structural parts and sensors. It is necessary to carry out the protection work strictly, and the protection work is complicated and requires attention.

  The present invention has been made to solve such problems, and allows an operator to safely and easily remove a covering material attached to a wall surface or a steel frame in an elevator hoistway. It is an object of the present invention to provide a covering material removing apparatus capable of performing the above.

  It is another object of the present invention to provide a covering material removing method for removing a covering material from a wall surface or a steel frame in an elevator hoistway using the covering material removing apparatus as described above.

In order to achieve the above object, a covering material removing apparatus according to the present invention is a covering material removing apparatus for removing a covering material attached to a wall surface in a hoistway of a building elevator. A frame that is arranged above the car and has a work area that is the height of the first floor of the building, is supported by guide rails that extend along the wall surface in the elevator, and is made of a transparent material. A sheet-like cover portion that covers a wall surface of a height of one floor at a predetermined distance from the wall surface, forms a space between the wall surface, and is attached to the cover portion. end connected to an opening formed in the cover portion, and arranged bag-like working portion so as to protrude toward the space covered by the cover portion from the cover portion, connected to the cover part is removed from the wall surface Covering material It is characterized with a bag-shaped housing part for accommodating the parts, further comprising a.

  In this invention comprised in this way, since a sheet-like cover part covers the wall surface of the height for the 1st floor in the elevator hoistway, only a part in hoistway can be isolated. Therefore, compared with the conventional method which isolated the whole space in a hoistway, the removal work of a coating | covering material can be performed by simple isolation work. In addition, since the covering material can be removed every floor, the space in the hoistway can be divided into floors and the covering material can be removed multiple times. As a result, the use stop time of the elevator per one removal operation is shortened. For example, even when the covering material in the elevator hoistway installed in the building in use is removed, inconvenience is imposed on the user of the building. The covering material can be removed without any problem.

  In addition, since a frame having a height of one floor is assembled on the car, the worker can perform the covering material removing work while standing on the car or using the frame as a scaffold. When working on the upper floor, the car may be stopped at a position below the work floor. Therefore, it is not necessary to assemble a high scaffolding that reaches the upper floor as in the prior art, and the on-site preparation work can be simplified. And since an operator should just work in the range for one floor on a cage | basket | car, workability of the removal work of a covering material can be ensured, and safety of work can also be secured. it can.

  Furthermore, since the wall portion having a height of one floor in the hoistway can be isolated by the cover portion, it is possible to arrange the components and sensors inside the elevator outside the space covered with the cover portion. Therefore, it is not necessary to strictly protect the component parts and sensors to prevent the coating material and the scattering inhibitor of the coating material from adhering, and the preparatory work at the site is simplified, and the components and sensors are protected. The occurrence of a failure can be prevented.

In this invention, Preferably, the upper end part and lower end part of a cover part are attached to the adhering site | part of the wall surface to which the coating | coated material was adhering with the scattering inhibitor.
In the present invention configured as described above, a fixing portion where the covering material is fixed to the wall surface by the scattering inhibitor is formed on the wall surface, and the upper end portion and the lower end portion of the cover portion are attached to the fixing portion. When the wall is attached to the wall surface to isolate the wall surface, the wall surface covering material can be prevented from scattering.

In the present invention, preferably, the fixing portion is formed over substantially the entire width of the wall surface, the upper end portion of the cover portion is in partial contact with the fixing portion, and the lower end of the cover portion is in contact with substantially the entire width of the fixing portion. .
In the present invention configured as described above, since the lower end portion of the cover portion is in contact with the wall surface where the fixing portion is formed over the entire width, when the covering material removed from the wall surface falls, the lower portion of the cover portion is removed. Support the coated material. Accordingly, it is possible to prevent the covering material from leaking outside the cover portion and falling down. In addition, since the upper end of the cover part is in partial contact with the fixing part, for example, when sucking the air in the space covered by the cover part by a suction device or the like, External air can be sucked into the space from a non-contact point. Therefore, the inside of the space covered with the cover portion can be maintained at a negative pressure, and the covering material can be prevented from leaking outside the space.

In order to achieve the above object, the covering material removing apparatus of the present invention is a covering material removing apparatus for removing the covering material attached to a steel frame in a hoistway of a building elevator, It is located above the elevator car and has a work area that is as high as the first floor of the building, and is composed of a frame that is supported by guide rails that extend along the walls in the elevator, and a transparent material. A cover part that covers the periphery of the steel frame at a height and is fixed to the frame to form a space around the steel frame, and is attached to the cover part, and an opening end thereof is connected to an opening formed in the cover part. A bag-like working part arranged so as to protrude from the part toward the space covered by the cover part, and a bag-like storage part for storing the covering material connected to the cover part and removed from the steel frame inside With , It is characterized in that.

  In this invention comprised in this way, since a cover part covers the circumference | surroundings of the steel frame of the height of the 1st floor in the elevator hoistway, only a part in hoistway can be isolated. Therefore, compared with the conventional method which isolated the whole space in a hoistway, the removal work of a coating | covering material can be performed by simple isolation work. In addition, since the covering material can be removed every floor, the space in the hoistway can be divided into floors and the covering material can be removed multiple times. As a result, the use stop time of the elevator per one removal operation is shortened. For example, even when the covering material in the elevator hoistway installed in the building in use is removed, inconvenience is imposed on the user of the building. The covering material can be removed without any problem.

  In addition, since a frame having a height of one floor is assembled on the car, the worker can perform the covering material removing work while standing on the car or using the frame as a scaffold. When working on the upper floor, the car may be stopped at a position below the work floor. Therefore, it is not necessary to assemble a high scaffolding that reaches the upper floor as in the prior art, and the on-site preparation work can be simplified. And since an operator should just work in the range for one floor on a cage | basket | car, workability of the removal work of a covering material can be ensured, and safety of work can also be secured. it can.

  Furthermore, since the cover part can isolate the periphery of the steel frame of the height of the first floor in the hoistway, it is possible to arrange the components and sensors inside the elevator outside the space covered by the cover part. Become. Therefore, it is not necessary to strictly protect the component parts and sensors to prevent the coating material and the scattering inhibitor of the coating material from adhering, and the preparatory work at the site is simplified, and the components and sensors are protected. The occurrence of a failure can be prevented.

In this invention, Preferably, a cover part covers the circumference | surroundings of the several steel frame connected mutually.
In the present invention configured as described above, since the cover portion covers the periphery of the plurality of steel frames, the covering material attached to the plurality of steel frames can be removed by a single operation, so that the removal operation is performed efficiently. be able to. Further, even a structure in which steel frames are combined with each other can cover a steel frame having the height of the first floor of the building, and thus can correspond to various arrangement structures of steel frames.

In the present invention, preferably, the working part is made separately from the cover part and is configured to be attachable to the cover part.
In the present invention configured as described above, since the working part is made separately from the cover part and is configured to be attachable to the cover part, the shape of the wall surface or steel frame is formed after covering the wall surface or steel frame with the cover part. The working part can be attached to a desired position of the cover part according to the covering state of the covering material or the like. Therefore, the cover which can arrange | position a working part according to the condition of various work sites can be provided. Therefore, even at a work site in a different situation, the work part can be arranged at a position where the hand can reach the wall surface or the steel frame from the outside of the cover part, and the covering material can be easily removed.

In this invention, Preferably, it further has a support bracket for making a guide rail support a flame | frame.
In this invention comprised in this way, since it further has a support bracket, a flame | frame can be supported by a guide rail using a support bracket. Therefore, the load of the frame and the load of the operator riding on the frame are not applied to the elevator car. Therefore, the load on the upper surface of the elevator car can be removed, and damage to the elevator car can be prevented.

In the present invention, preferably, the support bracket includes an attachment portion attached along the guide rail, and a frame placement portion that extends at a right angle to the attachment portion and places the frame on the upper surface to be fixed.
In this invention comprised in this way, since the support bracket is provided with the attaching part, it can be reliably attached to the guide rail extended along the wall surface of an elevator. In addition, by placing the frame on the frame mounting portion, the frame can be supported from below, and the frame can be reliably supported to prevent the frame from falling.

In the present invention, preferably, there is provided a covering material removing method for removing a covering material attached to a wall surface or a steel frame in an elevator hoistway by using the above-described covering material removing apparatus . Upwardly, a step of assembling a frame having a work area as high as one floor, a step of covering a wall surface or a steel frame with a cover part, a step of fixing the cover part to the frame, and a space covered by the cover part A step of generating pressure, an operator inserting an arm from the working unit, removing the covering material adhered to the wall surface or the steel frame from the outside of the cover unit, and storing the removed covering material in the storing unit comprising the steps of, a step of Crossed frame comprises the step of supporting the guide rail extending along the frame on the wall of the elevator, it is characterized by .

  In this invention comprised in this way, since a cover part covers the circumference | surroundings of the wall surface or steel frame of the height of the 1st floor in the elevator hoistway, only a part in hoistway can be isolated. Therefore, compared with the conventional method which isolated the whole space in a hoistway, the removal work of a coating | covering material can be performed by simple isolation work. In addition, since the covering material can be removed every floor, the space in the hoistway can be divided into floors and the covering material can be removed multiple times. As a result, the use stop time of the elevator per one removal operation is shortened. For example, even when the covering material in the elevator hoistway installed in the building in use is removed, inconvenience is imposed on the user of the building. The covering material can be removed without any problem.

  In addition, since a frame having a height of one floor is assembled on the car, the worker can perform the covering material removing work while standing on the car or using the frame as a scaffold. When working on the upper floor, the car may be stopped at a position below the work floor. Therefore, it is not necessary to assemble a high scaffolding that reaches the upper floor as in the prior art, and the on-site preparation work can be simplified. And since an operator should just work in the range for one floor on a cage | basket | car, workability of the removal work of a covering material can be ensured, and safety of work can also be secured. it can.

  Furthermore, since the cover portion can isolate the wall of the first floor in the hoistway or the periphery of the steel frame, components and sensors inside the elevator can be arranged outside the space covered with the cover portion. It becomes possible. Therefore, it is not necessary to strictly protect the component parts and sensors to prevent the coating material and the scattering inhibitor of the coating material from adhering, and the preparatory work at the site is simplified, and the components and sensors are protected. The occurrence of a failure can be prevented.

In the present invention, preferably, a step of impregnating the covering material at the upper and lower ends of the working area with a scattering inhibitor to form a fixing portion to which the covering material is fixed, and a step of attaching the end portion of the cover portion to the fixing portion And further.
In the present invention configured as described above, a fixing portion where the covering material is fixed to the wall surface or the steel frame is formed by the scattering inhibitor, and the end of the cover portion is attached to the fixing portion. It is possible to prevent the covering material that has come into contact with the cover portion from being scattered.

  In the present invention, preferably, after the step of covering the wall surface or the steel frame with the cover portion, the working portion is attached to the outer surface of the cover portion, an opening is formed at the position of the cover portion corresponding to the opening end of the working portion, and the working portion Is further provided with a step of projecting the working portion toward the space by inserting the inside of the cover portion from the opening.

In the present invention configured as described above, after covering the wall surface or the steel frame with the cover portion, the working portion is attached to the cover portion, and an opening is formed in the cover portion at a position corresponding to the opening end of the working portion. Then, the inside of the bag-like working part and the space inside the cover part communicate with each other through the opening.
After that, the working part is formed by inserting the working part into the cover part through the opening, turning it over, and projecting it toward the space.
Since the working portion is attached after the wall surface or the steel frame is covered with the cover portion, the working portion can be attached at a desired position of the cover portion according to the shape of the wall surface or the steel frame, the covering state of the covering material, or the like. Therefore, the working unit can be arranged according to the situation of various work sites. Therefore, even at a work site in a different situation, the work part can be arranged at a position where the hand can reach the wall surface or the steel frame from the outside of the cover part, and the covering material can be easily removed.

In the present invention, preferably, the step of supporting the frame with the guide rail includes a step of attaching a mounting portion of a support bracket for supporting the frame to the guide rail, and a frame mounting extending at a right angle to the mounting portion of the support bracket. Placing and fixing the frame on the mounting portion.
In the present invention configured as described above, the frame is supported by the guide rail by attaching the mounting portion of the support bracket to the guide rail and mounting and fixing the frame on the frame mounting portion of the support bracket. The load on the frame and the load of the operator on the frame is not applied to the elevator car. Therefore, the load of the frame and the load of the operator riding on the frame are not applied to the elevator car. Therefore, the load on the upper surface of the elevator car can be removed, and damage to the elevator car can be prevented.

In the present invention, when changing the work area, the mounting portion is removed from the guide rail, the frame is supported on the upper surface of the elevator car, and the elevator car is moved up and down together with the frame.
In the present invention configured as described above, when the work area is changed, the frame is supported by the upper surface of the elevator car. Therefore, the work can be performed simply by moving the elevator without disassembling the frame on the elevator car. The area can be changed. Therefore, the covering material can be removed in a short time.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. In the second and subsequent embodiments, the same components as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, and description thereof will be simplified or omitted.

[First Embodiment]
A covering material removing apparatus and a covering material removing method according to a first embodiment of the present invention will be described.
FIG. 1 is a schematic perspective view showing the entire covering material removing apparatus 1 according to the first embodiment of the present invention. The covering material removing apparatus 1 according to the present embodiment is an apparatus for removing the covering material T attached to the wall surfaces W2 and W3 in the hoistway 102 of the elevator 100. The hoistway 102 is for one elevator 100, and the door 103 (FIG. 2) of the elevator 100 is installed on one wall surface W1 among the four wall surfaces W1, W2, W2, and W3, and the covering material T Are attached to the other three wall surfaces W2, W2, W3.

  In addition, in the hoistway 102, in addition to the elevator car 104, components such as a rope for lifting the car 104, a weight, a hoisting machine, and a guide rail are installed. Although not shown, sensors for detecting the operation of the elevator 100 are also installed. The car 104 is stopped at the floor one floor below the floor where the covering material T is removed, and the upper surface of the car 104 is at a position that substantially matches the height of the floor F (FIG. 2) of the floor where the work is performed.

FIG. 2 is a side view of the covering material removing apparatus 1 according to the first embodiment of the present invention. FIG. 3 is a plan view of the covering material removing apparatus 1.
The covering material removing apparatus 1 includes a frame 2 installed on a car 104 and a cover 4 that covers three wall surfaces W2 and W3 in the hoistway 102.

The frame 2 includes a vertical frame 12 standing vertically at the four corners of the upper surface of the car 104, and a plurality of horizontal frames 14 arranged at predetermined intervals in the vertical direction so as to connect the adjacent vertical frames 12. It is equipped with.
The height of the vertical frame 12 is set to the height of about the first floor of the building. The length of the horizontal frame 14 is adjustable, and the length is adjusted according to the distance between the adjacent vertical frames 12. Further, the interval between the horizontal frames 14 adjacent in the vertical direction is set to such a size that an operator can go up to the frame 2 with his / her feet on the horizontal frame 14. A temporary floor 15 is placed on the four horizontal frames 14 located at the lowermost position. With such a structure, the frame 2 functions as a scaffold that allows an operator to stand on the temporary floor 15 and put the foot on the horizontal frame 14 to perform the removal work of the covering material T on the wall surfaces W2, W3. Fulfill. Therefore, by assembling the frame 2 on the car 104, a work area as high as one floor is formed.

  The cover 4 is a sheet-like cover portion 16 that covers the wall surfaces W2 and W3, and a tool introduction portion that is formed on the cover portion 16 and that can introduce a tool H (FIG. 4) for removing the covering material into the cover portion 16. 18, attached to the cover part 16, connected to the work part 20 for inserting the hand from the outside of the cover part 16 to remove the covering material T, and below the cover part 16, and removed from the wall surfaces W <b> 2 and W <b> 3. And a storage portion 22 for storing the covered covering material T therein.

The cover part 16 is a substantially rectangular sheet-like member that continuously covers the wall surfaces W2, W3, and is configured by joining together a plurality of cover unit units divided in the width direction of the wall surfaces W2, W3. The cover portion 16 has a vertical dimension that is slightly longer than the height of the frame 2, that is, the height of the first floor.
In addition, the cover part 16 may be comprised by the sheet | seat-like member which has the width dimension which can cover wall surface W2, W3 over the full width previously besides what is comprised by joining several cover part units. Good. However, in terms of installation work at the site, the work composed of a plurality of cover unit is easier.

  Further, an upper cover 26 that covers the upper part of the frame 2 is formed continuously at the upper end of the cover portion 16. The upper cover 26 is formed by joining a substantially rectangular sheet-like material of the same material as the cover portion 16 to the upper end of the portion disposed on the wall surface W3 of the cover portion 16 with a tape or the like.

  Here, the cover part 16 and the upper cover 26 are made of a transparent member. Examples of the material of the cover portion 16 and the upper cover 26 include, for example, a vinyl chloride resin film, a fluororesin film, a polyolefin resin film, other synthetic resin films, a material obtained by coating a polyester fiber cloth with a vinyl chloride resin system, Examples thereof include a material obtained by coating a polyolefin fiber cloth with a polyolefin resin.

The upper end portion 16A and the lower end portion 16B of the cover portion 16 are attached to the wall surfaces W2, W3.
FIG. 4 is a partial side sectional view showing the upper end portion 16 </ b> A of the cover portion 16. FIG. 5 is a partial side sectional view showing the lower end portion 16B of the cover portion 16, and is a sectional view taken along the line VV in FIG. 6 is a transverse sectional view showing a part of the lower end portion 16B of the cover portion 16, and is a sectional view taken along the line VI-VI in FIG. As shown in FIGS. 3 to 6, the upper end portion 16 </ b> A of the cover portion 16.
The lower end portion 16B is attached to the wall surfaces W2, W3 by a jack 28 attached to the frame 2.
It should be noted that the coatings adhered to the wall surfaces W2 and W3 at locations where the upper end portion 16A and the lower end portion 16B of the cover portion 16 are attached are prevented so that the covering material T is prevented from being scattered due to contact with the cover portion 16. The material T is preliminarily impregnated with a scattering inhibitor, and a fixing portion 36 to which the coating material T is fixed is formed. The fixing part 36 is formed in a predetermined height range over the entire width of the wall surfaces W2, W3.

  The jack 28 is attached to the horizontal frame 14 disposed in parallel to the three wall surfaces W2 and W3, either directly or via extension brackets 30 and 32. Specifically, as shown in FIGS. 3 and 5, the uppermost horizontal frame 14 among a plurality of horizontal frames 14 arranged in parallel to a pair of wall surfaces W2 adjacent to the wall surface W1 provided with the door 103. A plurality of jacks 28 each extending toward the wall surface W2 are directly attached to the lowermost horizontal frame 14. The uppermost and lowermost horizontal frames 14 are extended to the wall surface W1 by extension brackets 30 attached to the vertical frame 12. A jack 28 extending toward the wall surface W2 is also attached to these extension brackets 30.

On the other hand, the extension bracket 32 is attached to the wall surface W3 facing the wall surface W1 at the same height as the height of some of the horizontal frames 14. Each of these extension brackets 32 has two extension bars 32A that are fixed to the vertical frame 12 and extend toward the wall surface W3, and a support bar 32B that spans between the extension bars 32A in the lateral direction. Among these support bars 32B, a plurality of jacks 28 extending toward the wall surface W3 are attached to the support bar 32B positioned at the uppermost position and the support bar 32B positioned at the lowermost position. Here, components such as guide rails and weights are arranged between the car 104 and the wall surface W3.
Since the extension bar 32A extends beyond these components and close to the wall surface W3, the support bar 32B is disposed closer to the wall surface W3 than these components.
Each jack 28 has a mounting portion 28A at the tip.

  As shown in FIGS. 3 and 4, the upper end portion 16A of the cover portion 16 is sandwiched between the mounting portion 28A of the jack 28 and the wall surfaces W2, W3, and is pressed against the wall surfaces W2, W3 by the jack 28, It is attached to the wall surfaces W2, W3. Here, since the upper end portion 16A of the cover portion 16 is in close contact with the wall surfaces W2 and W3 only at the portion pressed by the attachment portion 28A, the upper end portion 16A of the cover portion 16 is partially attached to the wall surfaces W2 and W3. Touching. Therefore, as shown in FIG. 3, the upper end portion 16 </ b> A of the cover portion 16 is not completely sealed, and a gap is partially generated between the wall surfaces W <b> 2 and W <b> 3 and the cover portion 16.

On the other hand, as shown in FIGS. 2, 5, and 6, the lower end portion 16B of the cover portion 16 has a piece of wood 34 fixed to a mounting portion 28A at the tip of the jack 28, and the gap between the piece of wood 34 and the wall surfaces W2, W3. The lower end portion 16B of the cover portion 16 is sandwiched so as to be attached to the wall surfaces W2, W3. The wood piece 34 has such a length that it can be brought into close contact with the wall surfaces W2, W3 while avoiding steel frames disposed in the vicinity of the wall surfaces W2, W3, and the length direction thereof is along the width direction of the wall surfaces W2, W3. Arranged. Accordingly, the attachment portion 28A presses the plurality of pieces of wood 34 against the wall surfaces W2 and W3 to bring the lower end portion 16B of the cover portion 16 into contact with the wall surfaces W2 and W3 over the entire width of the wall surfaces W2 and W3.
When H steel or the like is disposed on the wall surfaces W2 and W3, the cover portion 16 is fixed using a child jack 29 attached orthogonally to the jack 28 as shown in FIG.

  The wooden piece 34 may have a length extending over the entire width of each of the wall surfaces W2, W3. In this case, the wood pieces 34 may be pressed against the wall surfaces W2 and W3 at a plurality of locations by the plurality of attachment portions 28A. However, using the piece of wood 34 divided into a plurality of pieces makes it easier to place the piece of wood 34 avoiding a steel frame and the like, and is easier to handle in the field.

  Further, a strip-shaped sealing portion 35 extending over the entire width of the cover portion 16 is formed above the lower end portion 16B of the cover portion 16 on the surface side (inner surface) facing the wall surfaces W2, W3. The base end of the sealing part 35 is fixed to the inner surface of the cover part 16, and the tip is a free end. The sealing portion 35 is disposed so as to face upward along the wall surfaces W2 and W3 from the proximal end toward the distal end, and is fastened to the wall surfaces W2 and W3 by pins 35A. Thereby, the sealing part 35 has covered the clearance gap between wall surface W2, W3 and the cover part 16 from upper direction.

  Here, the jack 28 attaches the cover 4 to the wall surfaces W2 and W3 and holds the frame 2 firmly on the wall surface W2 and W3 on the car 104 by stretching the cover 4 against the three wall surfaces W2 and W3. Also fulfills.

A plurality of strings 17 are attached to the outer surface of the intermediate portion between the upper end portion 16A and the lower end portion 16B of the cover portion 16. A string 17 provided on a portion covering the wall surface W <b> 2 of the cover portion 16 is bound to the extension bracket 30 and the lateral frame 14 of the frame 2. A string 17 provided on a portion of the cover portion 16 that covers the wall surface W3 is tied to the extension bracket 32.
The cover portion 16 has an upper end portion 16A and a lower end portion 16B in contact with the wall surfaces W2 and W3, and an intermediate portion thereof is separated from the wall surfaces W2 and W3 by a string 17 by a predetermined distance. With such a structure, a space S1 in which the covering material T can be removed is formed between the cover portion 16 and the wall surfaces W2 and W3.

  As shown in FIG. 4, a plurality of tool introduction portions 18 are provided at predetermined intervals in the cover portion 16, and introduces the tool H into the space S <b> 1 covered by the cover portion 16 from the outside of the cover portion 16. Can be done. The tool introduction portion 18 is made of a bag-shaped bottomed cylindrical member made of a transparent film having airtightness and having one end surface opened, and one opening end surface is attached to the inner surface of the cover portion 16. And is closed by the membrane material of the cover portion 16. The film material of the cover portion 16 that covers the opening end surface of the tool introduction portion 18 forms an outer introduction port 38 that separates the tool introduction portion 18 from the outside of the cover 4. The other end surface (tip surface) of the tool introduction portion 18 is disposed in the space S <b> 1 and forms an inner introduction port 40 that divides the tool introduction portion 18 and the space S <b> 1 inside the cover 4. Therefore, in the initial state of the cover 4, the outer introduction port 38 and the inner introduction port 40 are both closed by the film material of the cover part 16 and the film material of the tool introduction part 18, respectively. Further, the tool introduction portion 18 protrudes from the outer introduction port 38 to the inner introduction port 40 toward the inside of the space S1. And the tool introduction part 18 has the double structure which partitions off space S1 and the exterior of the cover 4 by two introduction ports inside and outside by having the outer side introduction port 38 and the inner side introduction port 40. FIG.

The working unit 20 is formed of a transparent sheet-like material similar to the cover unit 16 and has a bottomed cylindrical (bag-like) shape. The working portion 20 has one opening end 20A joined to the edge of the opening formed in the cover portion 16, the other end portion (tip) 20B is closed, and the inside from the inner surface of the cover portion 16 toward the space S1. It protrudes (invades) toward the direction.
The working unit 20 has a size and shape so that an operator can insert his / her arm from the outside of the cover unit 16 and place his / her hand on the tip 20B. In the present embodiment, the length of the working unit 20 is set to, for example, about 900 mm, which is a length that allows the operator to put his arm near the shoulder. In the present embodiment, the working unit 20 has a shape that tapers from the open end 20A toward the closed tip 20B.

  In the present embodiment, the working unit 20 is provided in a plurality along the width direction and the up-down direction, and has a predetermined interval, for example, about 1 m along the up-down direction of the wall surfaces W2, W3 covered by the cover 4, and about 0 in the width direction. .5m intervals. The interval between the adjacent work units 20 is preferably set to a distance that allows the tool H to be handed over in the space S <b> 1 from a hand put in one work unit 20 to a hand put in the adjacent work unit 20. .

  The storage unit 22 is disposed in the lower part of the cover unit 16 and is formed in a bag shape. Here, the storage unit 22 is made of an opaque material, for example, a material in which a vinyl chloride resin is coated on a polyester fiber cloth, a material in which a polyolefin resin is coated on a polyolefin fiber cloth, or a fluorine resin is coated on a polyester fiber cloth. It is possible to use a material made by coating a glass fiber cloth with a fluororesin, a glass fiber, or the like.

  The storage portion 22 is connected to the cover portion 16 via an elongated cylindrical chute 42 that protrudes to the outside of the cover portion 16 from an opening formed on the outer surface of the cover portion 16. Thereby, the inside of the storage unit 22 communicates with the space S <b> 1 via the chute 42. Note that a plurality of storage portions 22 are arranged along the width direction of the wall surfaces W2, W3. Further, these storage units 22 are placed on the temporary floor 15.

  A suction device 44 (FIG. 2) that sucks air in the space S1 is connected to the upper portion of the cover portion 16 via a hose communicating with the space S1. The suction device 44 is placed on the floor F of the work floor outside the car 104.

Next, a method for removing the covering material T attached to the wall surface W in the hoistway 102 using the covering material removing apparatus 1 having such a structure will be described.
First, the car 104 of the elevator 100 is stopped on the floor one floor below the floor where the covering material T is removed. Then, an operator stands on the upper surface of the car 104, the vertical frame 12 and the horizontal frame 14 are built above the car 104, and the temporary floor 15 is installed to assemble the frame 2.

  Next, the scattering inhibitor of the covering material T is sprayed at a position in the vicinity of the height of the temporary floor 15 on the wall surfaces W2 and W3 and a position above that by the height of about one floor. At this time, it is preferable that the surrounding air is sucked simultaneously with the spraying of the scattering inhibitor and the coating material T is prevented from being scattered by the spraying of the scattering inhibitor. In this manner, the covering material T is impregnated with the scattering inhibitor, and the fixing portions 36 to which the covering material T is fixed are formed in the upper and lower portions of the wall surfaces W2 and W3 in a band shape over the entire width.

  Extension brackets 30 and 32 are attached to the vertical frame 12 of the frame 2. At this time, the extension bar 32 </ b> A attached toward the wall surface W <b> 3 is preferably attached so as to avoid the structural parts arranged in the hoistway 102. In particular, obstacles such as guide rails and weights are arranged between the wall surface W3 of the hoistway 102 and the car 104. Accordingly, the extension bar 32A may be extended from the vertical frame 12 to a position that approaches the wall surface W3 over these obstacles, and a support bar 32B that extends laterally at that position may be attached.

Next, the cover unit is attached to the wall surfaces W2, W3.
First, the upper end portions of the plurality of cover unit units are pressed against the fixing portions 36 of the wall surfaces W2 and W3 from the outside by the attachment portion 28A, and fixed to the wall surfaces W2 and W3 by the jack 28. And the edge part of the width direction of each cover part unit is fastened mutually with a tape etc., and it joins, and the cover part 16 which covers the wall surface W2, W3 whole surface is formed.

3 and 6, when a steel frame or the like is disposed on the wall surfaces W2 and W3, the cover portion 16 can be fixed from two directions using the jack 28 and the child jack 29. preferable.
Further, when a steel frame or the like to which the covering material T is not attached is disposed in the vicinity of the wall surfaces W2 and W3, the steel frame and the wall surfaces W2 and W2 are disposed so that the steel frame is not disposed inside the cover portion 16 as much as possible. It is desirable to arrange the cover part 16 between W3. When the steel frame is too close to the wall surfaces W2 and W3 and the cover portion 16 cannot be disposed between them, the periphery of the steel frame is covered with a general film C as shown in FIG. Above, what is necessary is just to arrange | position in space S1.

  After forming the cover part 16, the upper cover 26 is joined to the upper end part 16A of the cover part 16 of the part attached to the wall surface W3 using a tape or the like. An upper cover 26 is placed on the frame 2 from above to protect the work space in the frame 2.

Next, the lower end portion 16B of the cover portion 16 is attached to the wall surfaces W2, W3.
A piece of wood 34 is temporarily fixed to the attachment portion 28A at the tip of the jack 28 with a nail or the like. The wooden piece 34 is pressed against a portion of the lower end portion 16B immediately below the base end of the sealing portion 35 and pressed against the wall surfaces W2 and W3 by the jack 28, thereby fixing the lower end portion 16B. Next, an arm is inserted from the outside of the cover unit 16 into the working unit 20 disposed at the lower part of the cover unit 16, the tip of the sealing unit 35 is disposed upward along the wall surfaces W2 and W3, and the sealing unit 35 is disposed. Fasten to the wall surfaces W2, W3 with the pin 35A.
The storage portion 22 protruding from the lower portion of the cover portion 16 is placed on the temporary floor 15.

Next, the string 17 is tied to the horizontal frame 14 and the extension brackets 30 and 32, and the intermediate part of the cover part 16 is arranged at a predetermined distance from the wall surfaces W2 and W3. Thereafter, a suction device 44 is connected to the top of the cover 4 to suck the air in the space S1. Air is taken in through the gap between the upper end portions 16A, and the interior of the space S1 is maintained at a negative pressure. By sucking air with the suction device 44 and maintaining the space S1 at a negative pressure in this way, the covering material T is outside the cover 4 even if there is a slight gap between the wall surfaces W2, W3 and the cover 4. Is prevented from being scattered.
By the above procedure, the operation of covering the wall surfaces W2, W3 having the height of one floor with the cover 4 is completed.

Next, the operation | work which removes the coating | covering material T of wall surface W2, W3 from the outer side of the cover 4 is demonstrated.
First, the tool H with a handle is inserted into the space S1 from the tool introduction unit 18.
7 and 8 show an operation of introducing the tool H into the cover 4 according to the first embodiment of the present invention. First, as shown in FIG. 7, the outer introduction port 38 is cut with a cutter 19 or the like to form an opening in the outer introduction port 38. Then, the tool H is introduced from the outer introduction port 38 into the tool introduction unit 18, that is, between the outer introduction port 38 and the inner introduction port 40. At this time, the cutter 19 having cut the outer introduction port 38 is also introduced into the tool introduction portion 18. Next, as shown in FIG. 8, after the outer introduction port 38 is closed with a tape 38A or the like, a hand is inserted from the working unit 20, and the outer introduction port 38 and the inner introduction are introduced together with the tool H or the tool H introduced therein. The cutter 19 or the like remaining between the mouths 40 is gripped from the outside of the tool introduction part 18 through the working part 20, and the inner introduction opening 40 is cut to form an opening. Then, the tool H is introduced from the inner introduction port 40 into the space S1.
At this time, since the space S1 is under negative pressure by the suction device 44, even if both the outer introduction port 38 and the inner introduction port 40 are opened, the air flows from the outer introduction port 38 toward the space S1. Therefore, the covering material T does not leak to the outside.

Next, as shown in FIG. 4, the arm is inserted into the working unit 20 and the tool H is gripped from the outside of the cover 4. At this time, since the working unit 20 has a tapered cylindrical shape, the working unit 20 is not excessive at the tip 20B, and the tool H is easily gripped. Then, the covering material T adhered to the surfaces of the wall surfaces W2 and W3 is scraped off with the grasped tool H, and the scraped covering material T ′ is dropped to the lower part of the space S1. Since a plurality of working units 20 are provided, work is performed by inserting a hand from the working unit 20 closest to the position of the covering material T to be removed. In addition, what is necessary is just to deliver the tool H in the inside of space S1 to the other hand inserted in the adjacent work part 20, when moving a work position.
The dropped covering material T ′ accumulates in the lower part of the cover part 16 sealed with the wooden piece 34 and the sealing part 35. Thereafter, the covering material T ′ dropped to the lower part of the space S <b> 1 is stored in the storage unit 22 via the chute 42.

  When the scraping work of the covering material T from the wall surfaces W2 and W3 is completed, as shown in FIG. 9, the chute 42 is tied at two places to close the chute 42, and a position between these closed portions (see FIG. 9). By separating the chute 42 with a dashed line), the storage portion 22 is separated from the cover portion 16. At this time, it is preferable that silicon is filled between the two closing portions before the separation work to prevent the covering material T 'from being scattered during the separation. In a state where the storage part 22 is cut off, the cover part 16 is sealed by one closing part, and the storage part 22 is sealed by the other closing part. After the storage part 22 is cut off, the cover part 16 is also removed from the wall surfaces W2, W3, and the storage part 22 and the cover part 16 are discarded by an appropriate method.

According to the present embodiment configured as described above, the following excellent effects can be obtained.
Since the cover 4 covers the wall surfaces W2 and W3 having the height of one floor, unlike the conventional method in which the entire space inside the hoistway 102 is isolated, only a part of the wall surfaces W2 and W3 is isolated. Can do. Therefore, the work for isolating the work space can be greatly simplified. Moreover, since the work of the wall surfaces W2 and W3 having the height of one floor can be performed by one work, the time required for one work can be greatly shortened. Therefore, for example, even when working on an elevator of a building in use, if the work is divided for each floor, there is no need to stop using the elevator continuously over a long period of time. The removal operation can proceed without inconvenience.

  Since the frame 2 is built on the car 104, the worker can work on the car 2 on the car 2. Therefore, workability and safety can be significantly improved as compared with the conventional method in which a high scaffold is formed over the entire floor of the hoistway 102. In addition, since the car 104 is stopped on the floor one floor below the floor on which the work is to be performed, the work on the upper floor can be performed in the same way as the work on the lower floor, This can be done while ensuring workability.

Unlike the conventional method in which the entire space in the hoistway 102 is isolated because the cover 4 covers only the wall surfaces W2 and W3 having a height of one floor, the components and sensors of the elevator 100 are covered with the covering material T. It can arrange | position outside the space S1 for removal work. Therefore, it is possible to prevent the covering material inhibitor and the covering material T from adhering to these components and sensors.
Therefore, the failure of the elevator 100 can be prevented from occurring.

  Since the upper end portion 16A and the lower end portion 16B of the cover portion 16 are attached to the fixing portions 36 of the wall surfaces W2 and W3, the covering material T is scattered when the cover portion 16 comes into contact with the wall surfaces W2 and W3. Can be prevented. Further, the covering portion T attached to the wall surfaces W2, W3 continuous in the vertical direction is divided by the height of the first floor by the fixing portion 36, and the cover 4 is attached while preventing the covering material T from being scattered. Can do.

  Since the lower end portion 16B of the cover portion 16 is in close contact with the wall surfaces W2 and W3 over the entire width of the wall surfaces W2 and W3 by the piece of wood 34, when the removed covering material T ′ falls downward, It is possible to prevent the covering material T ′ from leaking from the lower end portion 16B. Moreover, since the sealing part 35 is provided in the lower end part 16B, since the clearance gap between the cover part 16 and wall surface W2, W3 can be covered, the leakage of coating | covering material T 'is prevented more reliably. be able to.

Since the upper end portion 16A of the cover portion 16 is in close contact with only the portion pressed by the mounting portion 28A against the wall surfaces W2, W3, air is sucked from the gap between the upper end portion 16A and the wall surfaces W2, W3. And an appropriate negative pressure can be provided to the space S1.
At this time, since the intermediate portion of the cover portion 16 is fixed to the horizontal frame 14 directly or via the extension brackets 30 and 32, even if the space S1 is maintained at a negative pressure by the suction device 44, the cover is covered. It is possible to prevent the portion 16 from sticking to the wall surfaces W2, W3. Thereby, the space which removes the coating | covering material T between the cover part 16 and wall surface W2, W3 can be ensured.

[Second Embodiment]
Next, a covering material removing apparatus and a covering material removing method according to a second embodiment of the present invention will be described. FIG. 10 is a cross-sectional view of an elevator 200 in which the covering material removing device 50 according to the second embodiment of the present invention is installed. The coating removal apparatus 50 according to the present embodiment removes the coating material T attached to the steel frame H disposed between the adjacent cars 204 in the hoistway 202 of the elevator 200 in which a plurality of cars 204 are installed side by side. Is to do.

  FIG. 11 is a front view of the covering material removing apparatus 50 according to the second embodiment of the present invention. In the hoistway 202, a pair of steel frames H1 extending vertically, a steel frame H2 extending horizontally between the steel frames H1, and a rectangular portion formed by the steel frames H1 and H2 extend diagonally so as to be connected diagonally. A steel frame H3 is arranged. Of these steel frames H1, H2, and H3, a coating material T is attached to the steel frames H2 and H3.

The covering material removing device 50 includes the frame 2 having the same configuration as the frame 2 of the first embodiment, and a cover 52 that covers the periphery of the steel frame H.
The cover 52 includes a front cover part 54 and a rear cover part 56 that cover the steel frames H1, H2, and H3 at a height of one floor, and a lower cover part 58 attached below the front cover part 54 and the rear cover part 56. The tool introduction part 60 attached to the front cover part 54, and the accommodating part 62 which accommodates the removed coating | covering material T 'inside.

  The front cover portion 54 is a sheet-like member that covers the side of the steel frames H1, H2, and H3 that faces the frame 2, and the rear cover portion 56 is a sheet-like member that covers the opposite side. The front cover portion 54 and the rear cover portion 56 are joined to each other at the upper end and both side ends by a tape or the like. Moreover, the front cover part 54 is tied to the frame 2 by a string (not shown) at the middle part thereof, like the cover part 16 of the first embodiment. Therefore, the intermediate portion of the front cover portion 54 is disposed at a predetermined distance from the steel frames H1, H2, and H3. Thus, by being covered by the front cover part 54 and the rear cover part 56, a space S2 is formed inside them.

On the upper part of the steel frame H3, a fixing portion 59 is formed in which the covering material T is fixed by being impregnated with a scattering inhibitor. The upper end portion and the lower end portion of the front cover portion 54 and the rear cover portion 56 are fixed and sealed to the steel frame H by being tied around the steel frame H3 at the fixing portion 59.
The lower cover part 58 is a sheet-like member made of the same material as the front cover part 54 and the rear cover part 56, and one end thereof is joined to the lower end of the front cover part 54 and the other end is joined to the lower end of the rear cover part 56. As a result, the cross section is formed in a substantially U shape. The lower cover portion 58 is disposed closer to the frame 2 than the steel frame H3. The front cover part 54, the rear cover part 56, and the lower cover part 58 cover the steel frames H1, H2, and H3, thereby forming a substantially sealed space S2.

  A plurality of storage portions 62 are connected below the lower cover portion 58 via the chute 64, so that the space S <b> 2 and the internal space of the storage portion 62 communicate with each other via the chute 64.

  A plurality of tool introduction parts 60 are arranged at appropriate locations on the front cover part 54. The configuration of the tool introduction unit 60 is the same as the configuration of the tool introduction unit 18 of the first embodiment. In the present embodiment, the tool introduction unit 60 is used not only as an entrance for entering the tool into the space S2, but also for adjusting the negative pressure inside the space S2.

The cover 52 is provided with a working portion 66 (FIG. 13) for an operator to insert an arm from the outside of the cover 52 and remove the covering material T. In the present embodiment, the working portion 66 is attached to a desired position of the front cover portion 54 after attaching the front cover portion 54 and the rear cover portion 56 around the steel frames H1, H2, and H3.
FIG. 12 is a view showing the attachment position A of the working part 66 in the covering material removing apparatus 50 according to the second embodiment of the present invention. The working unit 66 is disposed along the steel frames H2 and H3 in the vicinity of the steel frames H2 and H3 to which the covering material T is attached so that the covering material T can be easily removed.

  13 and 14 show the work of attaching the working unit 66 according to the second embodiment of the present invention. After attaching the cover portions 54, 56 around the steel frames H1, H2, H3, the opening end 66A of the working portion 66 is taped to the attachment position A of the working portion 66 of the front cover portion 54 as shown in FIG. The opening end 66A of the working unit 66 is brought into close contact with the outer surface of the front cover unit 54. At this time, a cutting tool 68 such as a cutter is placed inside the working unit 66. Thereafter, the cutting tool 68 is grasped from the outside of the working portion 66, the region of the front cover portion 54 surrounded by the opening end 66A of the working portion 66 is cut, and the opening 70 is opened in the front cover portion 54 as shown in FIG. Form. Then, as shown in FIG. 14, the working unit 66 is turned over while being inserted into the space S <b> 2 from the opening 70. In this way, the working unit 66 is attached to an arbitrary position of the front cover unit 54.

The periphery of the steel frames H1, H2, and H3 is covered with the cover 52 having such a structure, and the covering material T for the steel frames H2 and H3 is removed from the outside of the cover 52 by using the tool H. At this time, the inside of the space S2 is sucked by a suction device (not shown). In order to adjust the negative pressure inside the space S2, a hole of an arbitrary size is formed in an arbitrary number of tool introduction parts 60, and the tool introduction part 60 is used as an air introduction part for introducing air into the space S2. Use as
Since the removed covering material T ′ falls to the lower cover portion 58, the operator puts the covering material T ′ into the chute 64 and stores it in the storage portion 62. Then, as in the first embodiment, the chute 64 is closed at two locations, and the chute 64 is cut between these closed parts, thereby separating the storage part 62 from the lower cover part 58. Thereafter, the cover 52 removed from the storage portion 62 and the steel frames H1, H2, and H3 is discarded by an appropriate method.

According to such an embodiment, in addition to the same effects as those of the first embodiment, the following effects can be obtained.
Even in the elevator 200 having the hoistway 202 in which a plurality of cars 204 are arranged, the steel frames H1, H2, H3 having the height of one floor are provided even when the steel frames H having the covering material T attached between the cars 204 are provided. Since the cover 52 can be covered with the cover 52, the covering material T can be easily removed in a short work time.

  Since the working part 66 is configured to be attachable to the front cover part 54, after the front cover part 54 is attached around the steel frames H1, H2, and H3, the situation of the work area in the field and how the covering material T is attached. The working unit 66 can be attached at a desired position according to the above. Therefore, the removal work of the covering material T can be easily performed even in various field situations.

[Third Embodiment]
Next, a third embodiment of the present invention will be described. The covering material removing apparatus according to the third embodiment is different from the covering material removing apparatus according to the first embodiment except that the frame is supported by guide rails arranged along the wall surface of the elevator. The configuration is almost the same as that of the material removing device.

FIG. 15 is a plan view of a covering material removing apparatus according to a third embodiment of the present invention, and FIG. 16 is a side view of the covering material removing apparatus according to the third embodiment of the present invention. In the present embodiment, the cover mounting structure is not shown in order to show the frame support structure.
As shown in FIGS. 15 and 16, the covering material removing apparatus 80 according to the present embodiment attaches the frame 82 not to the upper surface 304 of the car 302 of the elevator 300 but to the guide rail 306 extending along the wall surface W of the elevator 300. A support bracket 81 is further provided.

  The guide rail 306 extends in the vertical direction along the wall surface W of the elevator 300. In this embodiment, two guide rails 306 are provided on the wall surface W5 facing the door 308, and one guide rail 306 is adjacent to the door 308 and one side surface W6, W6. A total of four are provided. Note that the number of guide rails 306 is not limited to four, and any number of guide rails 306 may be provided in the elevator 300, and any number of guide rails 306 among the plurality of guide rails 306 provided in the elevator 300 may be provided. The frame 82 may be fixed using the rail 306.

  A weight 310 is disposed between the guide rails 306 on the wall surface W5. These guide rails 306 have the same cross-sectional shape. Specifically, the guide rail 306 includes a base portion 312 and a guide portion 314 that protrudes substantially perpendicularly to the base portion 312 from substantially the center of the base portion 312 and has a substantially T-shaped cross section as a whole. Yes. The base portion 312 is disposed substantially perpendicular to the wall surface W5. Therefore, the base portions 312 of the two guide rails 306 are disposed in parallel to each other so as to face both sides of the weight 310. Accordingly, the guide portion 314 is disposed substantially parallel to the wall surface W5 and protrudes toward the weight 310. The guide portion 314 has a mirror finish, and when the weight bracket 310 moves up and down when the guide brackets 316 provided on both sides of the weight 310 are engaged with the guide portion 314, the weight 310 is moved to the guide rail. Guided along 306. The base portion 312 is not mirror-finished.

  The guide rails 306 respectively disposed on the wall surface W6 have the same cross-sectional shape as the guide rails 306 provided on the wall surface W5. Specifically, the guide rail 306 includes a base portion 312 and a guide portion 314 that protrudes substantially perpendicularly to the base portion 312 from substantially the center of the base portion 312 and has a substantially T-shaped cross section as a whole. Yes. The base portion 312 is disposed substantially parallel to the wall surface W6. Therefore, the base portions 312 of the two guide rails 306 are disposed parallel to each other on both sides of the car 302. Accordingly, the guide portion 314 is arranged substantially perpendicular to the wall surface W <b> 6 and protrudes toward the car 302. The guide portion 314 is mirror-finished. When the guide brackets 318 provided on both sides of the car 302 are engaged with the guide portion 314, the car 302 moves up and down. Guided along 306, the lateral shaking of the car 302 when it moves up and down is suppressed. The base portion 312 is not mirror-finished.

  FIG. 17 shows a side view of the support bracket 81 according to the third embodiment of the present invention, and FIG. 18 shows a plan view of the support bracket 81. As shown in these drawings, the support bracket 81 has an attachment portion 84 that can be attached to the guide rail 306 and a frame placement portion 88 for placing and fixing the horizontal frame 86 of the frame 82.

  The attachment portion 84 includes a base portion 90 and a grip portion 92 that is provided at a plurality of locations (two locations in the present embodiment) on the base portion 90 and grips the base portion 312 of the support bracket 81. The base part 90 is formed in a substantially L-shaped cross section. The grip portion 92 is provided at two locations in the longitudinal direction of the base portion 90 with a space therebetween, and has a surface fixed to the surface of the base portion 90 and surfaces facing each other that protrude from this surface. Are formed in a substantially C-shaped cross section. One of the opposing surfaces of the grip portion 92 is a flat surface so as to come into contact with the base portion 312 of the support bracket 81. A bolt 93 is screwed onto a surface of the grip portion 92 that faces the flat surface, and the tip of the bolt 93 can be moved close to and away from the flat surface.

  The frame placing portion 88 extends from one end of the attachment portion 84 at a right angle to the attachment portion 84 and has a substantially L-shaped cross section. A long hole 94 is formed in one surface of the frame mounting portion 88 along the longitudinal direction of the surface of the frame mounting portion 88.

When removing the covering material using the covering material removing apparatus 80 having such a structure, the support bracket 81 is attached to the guide rail 306. First, the base portion 312 of the guide rail 306 is disposed between the opposing surfaces of the grip portion 92, and the bolt 93 is tightened, so that the base portion 312 is placed between the tip of the bolt 93 and one surface of the grip portion 92. Hold it. Thereby, the support bracket 81 is fixed to the guide rail 306 at two locations. In this manner, one support bracket 81 is attached to each of the four guide rails 306.
In a state where the support bracket 81 is attached to the guide rail 306, the base portion 90 of the support bracket 81 is disposed vertically (in the vertical direction in the present embodiment) along the wall surfaces W5 and W6. One surface of 88 is arranged in the horizontal direction (in the present embodiment, in the horizontal direction).

  Next, the horizontal frame 86 of the frame 82 is mounted and fixed on the frame mounting portion 88. First, a single tube clamp 95 (shown by a dotted line in FIG. 18) is fixed to the elongated hole 94 of the frame mounting portion 88 with a bolt. Then, the cross member 86 is fixed to the frame placing portion 88 by the clamps 95 of the two support brackets 81 attached to the guide rail 306 on the wall surface W5. Thereby, the cross member 86 is fixed at two places. Next, orthogonal type clamps 97 are further attached to both ends of the cross member 86, and the cross member 86 is placed on the clamp 95 of the support bracket 81 attached to the guide rail 306 of the wall surface W6. And fix. Thereafter, the cross member 86 is placed and fixed by the orthogonal clamp 97 between the ends of the cross member 86 supported by the support bracket 81 attached to the guide rail 306 of the wall surface W6. By such an operation, the cross member 86 is assembled into a well shape.

  After the cross member 86 is assembled in one stage above the car 302 in this way, the frame 82 is assembled by assembling the vertical member 87 on the cross member 86 using the orthogonal clamp 97. Note that a jack portion 87A is formed at the lower end of the vertical member 87 as shown in FIG. 16, and the vertical position of the frame 82 can be finely adjusted by operating the jack portion 87A. In FIG. 16, a region 89 surrounded by the vertical members 87 is a scaffold region that can be used as a scaffold by the operator. Thereafter, similarly to the covering material removing apparatus 1 of the first embodiment, the wall surfaces W5 and W6 are covered with a cover (not shown) to remove the covering material.

Next, when the work area of the covering material removal work is changed, for example, in order to perform the work of removing the covering material attached to the wall of the upper floor or the lower floor, the lowermost step. In the cross member 86, jacks 96 that protrude downward are attached to a plurality of positions (four positions in the present embodiment) corresponding to the upper side of the car 302. After removing the cover, the jack 96 is lowered and brought into contact with the upper surface 304 of the car 302. Then, the holding of the guide rail 306 by the holding portion 92 of the support bracket 81 is released, the frame placing portion 88 is moved along the long hole 94 with respect to the bracket 95, and the support bracket 81 is moved away from the guide rail 306.
In the above state, the frame 306 is released from the support bracket 81 and is supported on the upper surface of the car 302 at four locations. When the car 302 is moved in this state, the frame 306 is moved together with the car 302.

According to the covering material removing apparatus 80 having the above structure, the same effects as the effects of the covering material removing apparatuses 1 and 50 according to the above-described embodiment can be obtained, and the following effects can be obtained.
Since the support bracket 81 is provided on the frame 306, the frame 306 can be supported by the guide rail 306. Therefore, the load on the frame 306 and the weight of the operator riding on the frame 306 can be received by the guide rail 306, and the load on the car 302 can be removed.
In recent years, the wall and ceiling of the car 302 may be made as thin as possible for weight reduction, and when the frame 306 is placed on the car 306 and an operator further gets on the frame 306, an excessive burden may be imposed on the car 302. is there. If the support bracket 81 of the covering material removing apparatus 80 according to the present embodiment is used, the frame 306 can be attached without applying a load to the car 302, and damage to the car 302 can be prevented.

  Since the support bracket 81 has a mounting portion 84 and a frame mounting portion 88 and is formed in a substantially L shape as a whole, the mounting portion 84 is attached to the guide rail 306 arranged in the vertical direction along the wall surfaces W5 and W6. When attached, the frame placing portion 88 is arranged in the lateral direction. Therefore, the cross member 86 of the frame 306 can be placed and fixed on the frame placing portion 88. Since the cross member 86 can be mounted on the frame mounting portion 88, the load applied to the cross member 86 can be received by the frame mounting portion 88 below the cross member 86, so that the frame 306 can be assembled more firmly. Can do.

  Since the frame placement portion 88 is formed at a substantially right angle with respect to the attachment portion 84, when the attachment portion 84 is attached to the guide rail 306 extending vertically, the frame placement portion 88 protrudes from the guide rail 306 at a substantially right angle. . Therefore, the cross member 86 of the frame 306 can be easily placed on the frame placing portion 88, the assembling work of the frame 306 is simplified, and the frame 306 can be more reliably fixed.

  When changing the work machine for removing the covering material, the attachment of the support bracket 81 to the guide rail 306 is released, and the frame 306 is supported on the upper surface of the car 302. Therefore, the frame 306 is moved together with the car 302 without being disassembled. Can be made. Therefore, even when the covering material removing operation is performed over a plurality of floors, the operation can be easily and quickly performed.

  The present invention is not limited to the above-described embodiment. For example, the working unit is fixed to the cover unit 16 in advance in the first embodiment, and the front cover unit 54 is a steel frame H in the second embodiment. Although it attached after attaching to, it is not restricted to this. That is, for example, in the first embodiment, the cover unit 16 may be configured so that the working unit can be attached to a desired position. In the second embodiment, the working unit is fixed to the front cover unit in advance. Also good.

  In the second embodiment, the cover covers the periphery of the plurality of steel frames. However, the present invention is not limited to this, and the cover can cover any member in the elevator hoistway to which the covering material is attached. For example, it may cover one steel frame.

  In the first embodiment, the upper end portion 16A of the cover portion 16 has a gap between the wall surfaces W2 and W3, and air is introduced into the space S1 from the gap. The cover may have a structure that can maintain an appropriate negative pressure in the space by the suction force of the suction device. Therefore, for example, the upper end portion may be sealed over almost the entire width of the wall surface similarly to the lower end portion, and the air introduction portion may be formed by providing an opening of an appropriate size in the tool introduction portion.

  The tool introduction unit introduces the tool into a space covered with a cover, for example, for introducing the tool as in the first embodiment, for introducing the tool and air as in the second embodiment, You may use as a wire penetration part which lets the wire etc. which extend from a tool pass.

The guide rail is not limited to one that guides the vertical movement of the weight of the elevator or one that guides the elevator car, but may be any one that extends vertically along the wall surface and guides any structure of the elevator.
The support bracket is not limited to a substantially L-shape provided with a mounting portion and a frame mounting portion, but can be mounted on the guide rail and can be mounted and fixed on the frame. Is optional, and for example, an arbitrary shape such as a T-shape or a C-shape in a side view can be adopted.

It is a schematic perspective view which shows the whole covering material removal apparatus by 1st Embodiment of this invention. It is a side view of the covering material removal apparatus by 1st Embodiment of this invention. It is a cross-sectional view of the covering material removing apparatus according to the first embodiment of the present invention. It is a fragmentary sectional side view which shows the upper end part of the cover part of the cover by 1st Embodiment of this invention. It is a fragmentary sectional side view which shows the lower end part of the cover part of the cover by 1st Embodiment of this invention. It is a cross-sectional view which shows a part of lower end part of the cover part of the cover by 1st Embodiment of this invention. It is a figure which shows the operation | work which introduce | transduces a tool into the cover by 1st Embodiment of this invention. It is a figure which shows the operation | work which introduce | transduces a tool into the cover by 1st Embodiment of this invention. It is a figure which shows the closing operation | work of the accommodating part of the coating material removal apparatus by 1st Embodiment of this invention. It is a top view of the elevator in which the covering material removal apparatus by 2nd Embodiment of this invention is installed. It is a front view of the covering material removal apparatus by 2nd Embodiment of this invention. It is a figure which shows the attachment position of the operation | work part in the coating material removal apparatus by 2nd Embodiment of this invention. It is a figure which shows the attachment operation | work of the operation part in the coating material removal apparatus by 2nd Embodiment of this invention. It is a figure which shows the attachment operation | work of the operation part in the coating material removal apparatus by 2nd Embodiment of this invention. It is a top view of the covering material removal apparatus by 3rd Embodiment of this invention. It is a side view of the covering material removal apparatus by 3rd Embodiment of this invention. It is a top view which shows the support bracket by 3rd Embodiment of this invention. It is a side view which shows the support bracket by 3rd Embodiment of this invention. It is a side view which shows the operation | work at the time of the change of the work area by 3rd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,50 Coating material removal apparatus 2 Frame 4,52 Cover 20,66 Working part 22,62 Storage part 32 Adhering part T Coating material W1, W2, W3 Wall surface H, H1, H2, H3 Steel frame 100,200 Elevators 102,202 Hoistway 104,204 basket

Claims (13)

A covering material removing device for removing a covering material adhered to a wall surface in a hoistway of a building elevator,
A frame which is disposed above the elevator car and has a work area as high as the first floor of the building, and which is supported by guide rails extending along the wall surface in the elevator ;
It is made of a transparent material, is fixed to the frame on the wall surface side of the frame, covers the wall surface having a height of one floor at a predetermined distance from the wall surface, and is a space between the wall surface A sheet-like cover portion that forms
Wherein attached to the cover portion, the open end is connected to the opening formed in the cover portion, wherein disposed from the cover portion so as to protrude toward the covered space by the cover portion has a bag-like working unit When,
A bag-shaped storage unit that is connected to the cover unit and stores the covering material removed from the wall surface;
An apparatus for removing a covering material. The upper end portion and the lower end portion of the cover portion are attached to the fixing portion of the wall surface to which the covering material is fixed by the scattering inhibitor.
The covering material removing apparatus according to claim 1 . The fixing portion is formed over substantially the entire width of the wall surface, the upper end portion of the cover portion is in partial contact with the fixing portion, and the lower end portion of the cover portion is in contact with substantially the entire width of the fixing portion,
The covering material removing apparatus according to claim 2. A covering material removing device for removing a covering material attached to a steel frame in a hoistway of a building elevator,
A frame which is disposed above the elevator car and has a work area as high as the first floor of the building, and which is supported by guide rails extending along the wall surface in the elevator ;
A cover part that is made of a transparent material and covers the periphery of the steel frame with a height of one floor and is fixed to the frame to form a space around the steel frame;
A bag-like working part that is attached to the cover part and whose opening end is connected to an opening formed in the cover part and is arranged so as to protrude from the cover part toward the space covered by the cover part. When,
A covering material removing device comprising: a bag-shaped storage portion that stores the covering material that is connected to the cover portion and removed from the steel frame. The cover portion covers the periphery of a plurality of steel frames connected to each other.
The covering material removing apparatus according to claim 4.   The covering material removing apparatus according to any one of claims 1 to 5, wherein the working unit is made separately from the cover unit and configured to be attachable to the cover unit. A support bracket for supporting the frame on the guide rail ;
The covering material removing apparatus according to any one of claims 1 to 6. The support bracket includes an attachment portion attached along the guide rail, and a frame placement portion that extends at a right angle to the attachment portion and places and fixes the frame on an upper surface.
The coating material removing apparatus according to claim 7. A covering material removing method for removing a covering material attached to a wall surface or a steel frame in an elevator hoistway using the covering material removing apparatus according to any one of claims 1 to 6. ,
Above the car of the elevator, a step of Crossed frame having a work area of the height of 1 storey,
Covering the wall surface or the steel frame with the cover part;
Fixing the cover part to the frame;
Generating a negative pressure in the space covered by the cover part;
An operator inserts an arm from the working unit and removing the covering material attached to the wall surface or the steel frame from the outside of the cover unit;
Storing the removed covering material in the storage portion, and
The step of assembling the frame includes a step of supporting the frame with a guide rail extending along a wall surface in the elevator.
A method for removing a covering material in an elevator. Impregnating the coating material at the upper and lower ends of the working area with a scattering inhibitor to form a fixing portion to which the coating material is fixed; and
Attaching the end of the cover part to the fixing part, and
The coating material removing method according to claim 9. After the step of covering the wall surface or the steel frame with the cover part, the working part is attached to the outer surface of the cover part, an opening is formed at the position of the cover part corresponding to the opening end of the working part, and the working part is Further comprising the step of projecting the working portion toward the space by being inserted into the cover portion from the opening.
The coating material removing method according to claim 9 or 10. The step of supporting the frame with the guide rail includes a step of attaching a mounting portion of a support bracket for supporting the frame to the guide rail, and a frame mounting portion extending at right angles to the mounting portion of the support bracket. And mounting and fixing the frame,
The method for removing a coating material according to any one of claims 9 to 11. When changing the work area, the mounting portion is removed from the guide rail, the frame is supported on the upper surface of the elevator car, and the elevator car is moved up and down together with the frame.
The coating material removing method according to claim 12.

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