Elevator rust removing apparatus

Abstract

To provide a rust removing device for an elevator capable of easily removing rust generated on a guide rail.SOLUTION: A rust removing apparatus for an elevator according to an embodiment includes a bracket attached to a guide rail, an elevator attached to the bracket, and a rust remover suspended from the elevator via a long member and capable of moving up and down along the guide rail by driving the elevator. The rust remover includes a housing connected to the long member, a guide part attached to a lower part and an upper part of the housing and guiding the housing along the guide rail, and a rust removing body part attached to the housing and polishing a target surface of the guide rail.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure relates to an elevator rust removal device. [Background technology]

[0002] Work is carried out to remove rust that has developed on the metal guide rails of elevators. For example, workers get into the elevator car and polish the surface of the guide rails with an abrasive sheet such as sandpaper to remove the rust. However, this method has the problem of taking a lot of time.

[0003] On the other hand, there is also a known method of installing a rust removal device on the elevator car and removing rust from the guide rails while the elevator car is raised and lowered. However, in this case, it is difficult to remove rust from the guide rails before the elevator car is installed during new construction work. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-168182 [Patent Document 2] Japanese Utility Model Application Publication No. 63-178272 Summary of the Invention [Problem to be solved by the invention]

[0005] An object of the present embodiment is to provide a rust removal device for an elevator that can easily remove rust that has formed on a guide rail. [Means for solving the problem]

[0006] One embodiment is a rust removal device for removing rust from an elevator guide rail. The elevator rust removal device includes a bracket attached to the guide rail, an elevator attached to the bracket, and a rust remover suspended from the elevator via an elongated member and capable of moving up and down along the guide rail by driving the elevator. The rust remover includes a housing connected to the elongated member, guide units attached to the lower and upper parts of the housing to guide the housing along the guide rail, and a rust removal main body attached to the housing to polish the target surface of the guide rail. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is a schematic diagram showing an elevator apparatus according to a first embodiment. [Figure 2] FIG. 2 is a perspective view showing the rust removing device for an elevator according to the first embodiment. [Figure 3] FIG. 3 is a front view showing the rust remover for the elevator shown in FIG. [Figure 4] FIG. 4 is a side view showing the rust remover for the elevator shown in FIG. [Figure 5] FIG. 5 is a perspective view showing the attachment shown in FIG. [Figure 6] FIG. 6 is a top view showing the attachment shown in FIG. [Figure 7] 7 is a perspective view showing the receiving portion shown in FIG. 2. FIG. [Figure 8] 8 is a side view showing the receiving portion shown in FIG. [Figure 9] 9 is a top view of the receiving portion shown in FIG. [Figure 10] FIG. 10 is a flowchart showing a rust removing method using the elevator rust removing device in the first embodiment. [Figure 11] FIG. 11 is a perspective view showing a rust remover according to the second embodiment. [Figure 12] FIG. 12 is a front view showing the rust remover for the elevator shown in FIG. [Figure 13] FIG. 13 is a perspective view showing a rust removing device for an elevator according to the third embodiment. [Figure 14] FIG. 14 is a partial side view showing the rust removing device for the elevator shown in FIG. [Figure 15] FIG. 15 is an exploded perspective view showing the connecting rod shown in FIG. [Figure 16] FIG. 16 is a flowchart showing a part of a rust removing method using the rust removing device for an elevator according to the third embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0008] Hereinafter, the rust removing device for an elevator according to the present embodiment will be described with reference to the drawings.

[0009] (First embodiment) First, a rust removing device for an elevator according to a first embodiment will be described with reference to Figures 1 to 10. First, an elevator device according to this embodiment will be described.

[0010] As shown in FIG. 1, elevator apparatus 1 includes a car 3 and a counterweight 4 disposed in a hoistway 2. The car 3 and counterweight 4 are connected via a main rope 5. The main rope 5 is wound around a traction sheave 6a and a camber sheave 7 provided on a hoisting machine 6. The hoisting machine 6 winds up the main rope 5, causing the car 3 and counterweight 4 to rise and fall. The car 3 rises and falls while being guided by a car guide rail 8 extending vertically. The counterweight 4 rises and falls while being guided by a counterweight guide rail 9 extending vertically. The hoisting machine 6 is installed in a machine room 10 provided above the hoistway 2. A control panel 11 is installed in the machine room 10. The control panel 11 is a device that controls the entire elevator apparatus 1, including the hoisting machine 6. For example, the control panel 11 controls the operation of the hoisting machine 6 in response to hall calls and car calls, and lands the car 3 at the hall 12 of the floor for which the call is registered.

[0011] The elevator apparatus 1 is not limited to the configuration shown in FIG. 1 . For example, it may be a so-called machine room-less elevator apparatus. That is, the machine room 10 may not be provided, and the hoisting machine 6 and the control panel 11 may be provided above the hoistway 2, etc. Also, the counterweight 4 may not be connected to the main ropes 5, and the hoisting machine 6 may wind up the main ropes 5 connected to the car 3. Even in this case, the hoisting machine 6 can raise and lower the car 3 via the main ropes 5. That is, the elevator apparatus 1 may be an elevator apparatus that does not have a counterweight 4.

[0012] Next, an elevator rust removal device according to this embodiment (hereinafter simply referred to as the rust removal device 20) will be described with reference to Figures 2 to 4. The rust removal device 20 is a device for removing rust that has formed on the car guide rail 8 and the weight guide rail 9 described above. The rust removal device 20 according to this embodiment can be applied to both the car guide rail 8 and the weight guide rail 9. In the following description, the car guide rail 8 and the weight guide rail 9 will be referred to as guide rail G.

[0013] As shown in FIG. 2, the guide rail G includes a leg portion Ga and a blade portion Gb. The leg portion Ga is attached to a beam member (not shown) attached to the hoistway 2 using a rail clip (not shown). The blade portion Gb is a portion that extends vertically from the center of the width of the leg portion Ga toward the inside of the hoistway 2. The cross section of the guide rail G is formed in a T-shape. The blade portion Gb is a portion that abuts a guide roller or guide shoe that guides the elevator car 3 or the counterweight 4 as it ascends and descends.

[0014] As shown in FIG. 2, the rust removing device 20 according to this embodiment includes a winch bracket 30, a winch 40, and a rust remover 50.

[0015] The winch bracket 30 is attached to the guide rail G. The winch bracket 30 may be attached to an upper portion of the guide rail G. The winch bracket 30 is a bracket for supporting the winch 40. The winch bracket 30 may be formed generally in an L-shape. More specifically, the winch bracket 30 may include a rail support portion 31 and a winch support portion 32.

[0016] The rail support part 31 may be attached to the guide rail G by abutting against the back surface of the leg part Ga of the guide rail G. The rail support part 31 may be formed in a plate shape extending in the vertical direction. The rail support part 31 may be fastened with a bolt B1 using a bolt hole (not shown) formed in the leg part Ga, and may also be attached to the leg part Ga using a rail clip 33 and a bolt B2.

[0017] The bolt holes are formed at the upper ends of the legs Ga. The guide rail is constructed by connecting rail members divided into multiple vertical sections. Bolt holes for passing bolts (not shown) for connecting the rail members together are formed at the upper and lower ends of the legs Ga of the rail members. The bolt hole formed at the upper end of the leg Ga of the uppermost rail member can be used to attach the rail support part 31, as there are no other rail members to connect to it.

[0018] The rail clip 33 may be configured similarly to a rail clip used to attach the guide rail G to the elevator shaft 2. By clamping the leg portion Ga of the guide rail G between the rail clip 33 and the rail support portion 31, the rail support portion 31 can be supported on the guide rail G.

[0019] The winch support part 32 is formed so as to cover the upper end of the guide rail G. The winch support part 32 may be in contact with the upper end of the guide rail G, or may be spaced apart from the upper end. The winch support part 32 may be formed in a plate shape perpendicular to the guide rail G.

[0020] The winch 40 is attached to the above-mentioned winch bracket 30. The winch 40 is an example of a lifting device. The winch 40 is attached to the winch support portion 32 of the winch bracket 30. The winch 40 may be suspended from the winch support portion 32.

[0021] The winch 40 may have a communication function. The winch 40 may be capable of receiving signals from a remote control R operated by an operator. This allows the operator to operate the winch 40 via the remote control R. The winch 40 can be switched ON / OFF and can be switched between ascending and descending operation based on commands from the remote control R. By switching the operating direction, the rust remover 50 can be switched between ascending and descending.

[0022] The rust remover 50 is suspended from a winch 40 via a long member 41. The long member 41 may be a chain, a wire, or a rope. A hook 42 is attached to the lower end of the long member 41. The rust remover 50 can be raised and lowered along a guide rail G by driving the winch 40.

[0023] The rust remover 50 will now be described in more detail.

[0024] As shown in Figures 3 and 4, the rust remover 50 according to this embodiment may include a housing 51, a lower guide portion 60, an upper guide portion 65, an attachment 70, a receiving portion 80, a camera 90, a control box 92, and a battery 93.

[0025] The housing 51 is connected to the elongated member 41. More specifically, the housing 51 includes a lower plate 52, an upper plate 53 located above the lower plate 52, and a housing main body 54 located between the lower plate 52 and the upper plate 53. The lower plate 52 and the upper plate 53 may be formed in a plate shape perpendicular to the guide rail G. The housing main body 54 may be connected to the lower plate 52 and the upper plate 53. The lower plate 52, the upper plate 53, and the housing main body 54 may be formed integrally.

[0026] Eyebolts 55 are attached to the upper plate 53. The hooks 42 described above are hung on the eyebolts 55. In the present embodiment, two eyebolts 55 are attached to the upper plate 53, and two hooks 42 are attached to the elongated member 41. Each hook 42 is hung on a corresponding eyebolt 55. The number of eyebolts 55 and the number of hooks 42 are arbitrary.

[0027] The lower guide unit 60 is attached to the lower part of the housing 51. More specifically, the lower guide unit 60 is attached to the lower plate 52 of the housing 51. The lower guide unit 60 guides the housing 51 along the guide rail G. The lower guide unit 60 may include three guide rollers 61. Of the three guide rollers 61, two guide rollers 61 located on both sides of the blade portion Gb of the guide rail G abut against the side surfaces of the blade portion Gb. The remaining guide roller 61 abuts against the end face of the blade portion Gb (the end face on the inner side of the elevator shaft 2). Each guide roller 61 is rotatably attached to a lower guide bracket 62, which is attached to the lower plate 52 of the housing 51. Note that the lower guide unit 60 is not limited to being constituted by the guide rollers 61 and may be constituted by, for example, a guide shoe (not shown).

[0028] The upper guide portion 65 is attached to the upper part of the housing 51. More specifically, the upper guide portion 65 is attached to the upper plate 53 of the housing 51. The upper guide portion 65 guides the housing 51 along the guide rail G. The upper guide portion 65 may be configured similarly to the lower guide portion 60. The guide roller 66 of the upper guide portion 65 is rotatably attached to an upper guide bracket 67, and the upper guide bracket 67 is attached to the upper plate 53 of the housing 51.

[0029] The attachment 70 is an example of a rust removal main body. As shown in FIG. 4, the attachment 70 is attached to the housing 51. The attachment 70 is configured to polish the target surface Gc of the guide rail G. The target surface Gc is the surface from which rust is removed. In this embodiment, the target surface Gc is both side surfaces of the blade portion Gb. The attachment 70 may include a first attachment member 71, a second attachment member 72, and a shoe member 73.

[0030] The first attachment member 71 is removably attached to the housing 51. More specifically, as shown in Figures 3 and 4, the first attachment member 71 is attached to the housing main body 54 of the housing 51 using an attachment bolt B3. The attachment bolt B3 presses the attachment 70 against the blade portion Gb of the guide rail G.

[0031] As shown in FIGS. 5 and 6, the first attachment member 71 may be formed in a C-shape so as to cover the second attachment member 72 when viewed in the vertical direction.

[0032] The second attachment member 72 is attached to the inside of the first attachment member 71. The second attachment member 72 may be detachably attached to the first attachment member 71. The second attachment member 72 may be formed in a C-shape so as to cover the blade portion Gb of the guide rail G when viewed in the vertical direction.

[0033] The second attachment member 72 may be movable in a direction perpendicular to the target surface Gc of the guide rail G. The second attachment member 72 may have flexibility so that it can be elastically deformed when subjected to the pressing force of an adjustment bolt 74, which will be described later. The second attachment member 72 may be made of a steel material having the desired flexibility.

[0034] The shoe members 73 are capable of coming into contact with the target surface Gc of the guide rail G. The shoe members 73 are attached to the inner surface of the second attachment member 72. In the present embodiment, a pair of shoe members 73 are attached to the second attachment member 72. More specifically, the shoe members 73 are attached to portions of the inner surface of the second attachment member 72 that face the target surface Gc of the guide rail G. The dimension between the portions of the inner surface of the second attachment member 72 to which the shoe members 73 are attached corresponds to the width of the blade portion Gb of the guide rail G. Depending on the state of rust on the target surface Gc of the guide rail G, the second attachment member 72 may be replaced with one having a different dimension between the two inner surfaces.

[0035] The shoe member 73 is configured to polish (or grind) the target surface Gc of the guide rail G. The shoe member 73 may be configured with an abrasive sheet such as sandpaper. The abrasive sheet is a sheet having an abrasive material on its surface. The type and roughness of the abrasive material are arbitrary as long as it can polish the target surface Gc and remove rust from the target surface Gc.

[0036] The shoe member 73 may be movable in a direction perpendicular to the target surface Gc of the guide rail G. More specifically, as shown in FIG. 6 , the shoe member 73 is movable in a direction perpendicular to the target surface Gc of the guide rail G by an adjustment bolt 74. The adjustment bolt 74 is inserted into and threadedly engages with a threaded hole 75 formed in the first attachment member 71, and the tip of the adjustment bolt 74 abuts against the outer surface 72a of the second attachment member 72. By screwing in the adjustment bolt 74, the second attachment member 72 bends and elastically deforms so as to approach the target surface Gc. This causes the shoe member 73 to abut against the target surface Gc. The adjustment bolt 74 is capable of adjusting the pressing force of the shoe member 73 against the target surface Gc.

[0037] 6, the outer surface 71a of the first attachment member 71 according to this embodiment may be inclined with respect to the target surface Gc, or may be parallel to the target surface Gc.

[0038] As shown in Fig. 2, the receiving portion 80 is configured to receive polishing chips generated by polishing the target surface Gc of the guide rail G. As shown in Figs. 7 to 9, the receiving portion 80 includes a bottom plate 81, a pair of outer walls 82, and an embankment wall 83.

[0039] The bottom plate 81 is attached to the lower plate 52 of the housing 51. The bottom plate 81 may include a bottom plate main body portion 84 and an inclined portion 85. The bottom plate main body portion 84 may be formed in a plate shape perpendicular to the guide rail G. The bottom plate main body portion 84 is a portion that is attached to the lower plate 52 of the housing 51 using bolts B4. The bottom plate main body portion 84 may be attached to the lower plate 52 of the housing 51 together with the lower guide bracket 62 of the lower guide portion 60 described above using bolts B4.

[0040] The inclined portion 85 is located closer to the guide rail G than the bottom plate main body portion 84. The bottom plate main body portion 84 and the inclined portion 85 may be formed integrally. In this case, the inclined portion 85 may be formed by bending the bottom plate main body portion 84.

[0041] 7 and 9, a slit 86 is formed in the bottom plate 81. The slit 86 allows the blade portion Gb of the guide rail G to pass through. More specifically, the slit 86 is formed in the inclined portion 85. The slit 86 may extend from the inclined portion 85 to the bottom plate main body portion 84.

[0042] As shown in FIGS. 7 and 8 , the outer walls 82 extend upward from the bottom plate 81 at both side edge portions 81 a of the bottom plate 81. The both side edge portions 81 a are the side edge portions 81 a of the bottom plate 81 located on both the left and right sides when the rust removal device 20 is viewed from the front. As shown in FIG. 9 , when viewed vertically, the above-mentioned slit 86 is located between the pair of outer walls 82. When viewed vertically, each outer wall 82 extends from the corresponding side edge portion 81 a of the bottom plate main body portion 84, through the proximal edge portion 85 a of the inclined portion 85, to the slit 86. The outer walls 82 may be welded to the bottom plate 81.

[0043] 9, when viewed in the vertical direction, the outer wall 82 may be recessed further than a distal edge 81b of the bottom plate 81 on the side opposite the guide rail G. More specifically, when viewed in the vertical direction, a distal edge 82a of the outer wall 82 on the side opposite the guide rail G may be positioned closer to the guide rail G than the distal edge 81b of the bottom plate 81. In other words, the bottom plate 81 may protrude in a direction away from the guide rail G than the outer wall 82. This makes it possible to ensure a mounting area between the bottom plate 81 and the lower plate 52 of the housing 51, as well as a space for welding and bolting when fabricating the receiving portion 80.

[0044] The outer wall 82 may extend upward beyond the attachment 70. In this case, the upper end of the outer wall 82 may be located at a position higher than the attachment 70.

[0045] As shown in FIGS. 7 and 9 , the embankment wall 83 may be connected to the edge of the slit 86 of the bottom plate 81 and extend in the vertical direction. The embankment wall 83 may be joined to the inclined portion 85 of the bottom plate 81. The embankment wall 83 extends upward from the inclined portion 85. The embankment wall 83 may extend not only upward but also downward from the inclined portion 85. When viewed vertically, the embankment wall 83 may be formed in a C-shape. When viewed vertically, the embankment wall 83 may be located around the slit 86. The blade portion Gb of the guide rail G can pass inside the embankment wall 83. As shown in FIGS. 7 and 8 , the height of the embankment wall 83 may be lower than the height of the outer wall 82. The embankment wall 83 may be connected to the outer wall 82. The embankment wall 83 may be welded to the bottom plate 81 or the outer wall 82.

[0046] As shown in FIGS. 2 to 4, the camera 90 is capable of capturing an image of the target surface Gc of the guide rail. The camera 90 is an example of an imaging unit. The camera 90 is attached to the housing 51 via a camera bracket 91. The camera bracket 91 may be attached to the lower guide bracket 62 described above. The camera 90 may be located lower than the lower guide unit 60. The camera 90 may be located below the camera bracket 91. Two cameras 90 may be attached to the housing 51. One camera 90 captures an image of one target surface Gc of the guide rail G, and the other camera 90 captures an image of the other target surface Gc. The camera 90 may capture a video of the target surface Gc, or may capture continuous still images. The camera 90 has a communication function for transmitting the captured images to an external device.

[0047] 2, the camera 90 may transmit the captured image to an externally located display unit D. The display unit D is configured with a monitor or the like and is capable of displaying the captured image transmitted to the display unit D. The display unit D may have a function for receiving the captured image, or a receiving unit (not shown) separate from the display unit D may receive the captured image and transmit it to the display unit D.

[0048] The control box 92 is configured to control the camera 90 described above. The control box 92 includes an on / off button (not shown) for switching the rust remover 50 on and off. When the rust remover 50 is in the on state, the control box 92 controls the camera 90 so that the camera 90 captures an image of the target surface Gc of the guide rail G. When the rust remover 50 is in the off state, the control box 92 controls the camera 90 so that the camera 90 stops capturing images. The control box 92 may be attached to the top plate 53 of the housing 51 via a control bracket 94.

[0049] The battery 93 supplies power to the camera 90 and the control box 92. The battery 93 stores power to be supplied to the camera 90 and the control box 92, and supplies power to the camera 90 and the control box 92 via electrical wiring (not shown). The battery 93 may be attached to the control bracket 94 described above.

[0050] Next, a method for removing rust from the target surface Gc of the guide rail G using the rust removing device 20 according to this embodiment configured as described above will be described. Here, a method for removing rust from the target surface Gc of the guide rail G when a new elevator device 1 is installed will be described with reference to FIG.

[0051] First, in step S1, a gondola (not shown) is installed in the elevator shaft 2. The gondola is configured so that a worker can ride in it when newly installed, and is configured so that it can rise and fall along the car guide rails 8.

[0052] After step S1, in step S2, the winch bracket 30 is attached to the guide rail G. In this embodiment, the rail support portion 31 of the winch bracket 30 is attached to the upper part of the guide rail G.

[0053] After step S2, in step S3, the winch 40 is attached to the winch bracket 30. In this case, the winch 40 is suspended from the winch support portion 32 of the winch bracket 30.

[0054] After step S3, in step S4, the rust remover 50 is hung from the winch 40 via the long member 41. In this case, the hook 42 attached to the long member 41 is hung on the eyebolt 55 of the rust remover 50.

[0055] After step S4, in step S5, the rust remover 50 is pushed into the guide rail G. In this case, the rust remover 50 is pushed into the guide rail G so that the blade portion Gb of the guide rail G is inserted into the slit 86 of the housing 51. The guide rollers 61 of the lower guide portion 60 and the guide rollers 66 of the upper guide portion 65 of the rust remover 50 abut against the blade portion Gb of the guide rail G. More specifically, two of the three guide rollers 61 of the upper guide portion 65 abut against the side surfaces of the blade portion Gb of the guide rail G, and the remaining guide roller 61 abuts against the end surface of the blade portion Gb. The guide roller 66 of the lower guide portion 60 also abuts against the blade portion Gb. The rust remover 50 is disposed above the guide rail G and near the winch 40. The rust remover 50 may be disposed above the gondola.

[0056] After step S5, in step S6, the shoe member 73 of the attachment 70 is brought into contact with the target surface Gc of the guide rail G. In this case, by screwing in the above-mentioned adjustment bolt 74, the second attachment member 72 is deflected, and the shoe member 73 can be brought into contact with the target surface Gc.

[0057] After step S6, in step S7, the on / off button of the control box 92 is pressed to turn on the rust remover 50. This starts rust removal, and each camera 90 starts capturing an image of the target surface Gc.

[0058] After step S7, in step S8, the rust remover 50 is lowered. In this case, the operator operates the remote control R to turn on the winch 40 and perform the lowering operation. As the rust remover 50 is lowered, the gondola is also lowered.

[0059] While the rust remover 50 is descending, the shoe member 73 of the attachment 70 abuts against the target surface Gc of the guide rail G and polishes the target surface Gc. This makes it possible to remove rust that was present on the target surface Gc. The polishing chips generated by polishing the target surface Gc fall and are received by the receiving portion 80 of the rust remover 50. This allows the polishing chips to be collected in the receiving portion 80. The collected polishing chips are placed on the upper surface of the bottom plate 81 and are prevented from falling from the bottom plate 81 by the outer wall 82 and the embankment wall 83.

[0060] When the gondola and the rust remover 50 reach the lowest position, the winch 40 is raised (step S9). In this case, the operator operates the remote controller R to switch the winch 40 from lowering operation to raising operation.

[0061] While the rust remover 50 is ascending, the shoe member 73 of the attachment 70 abuts against the target surface Gc of the guide rail G and polishes the target surface Gc. This allows any remaining rust that was not removed during the descending operation to be removed from the target surface Gc. As with the descending operation, polishing debris generated on the target surface Gc falls and is received by the receiving portion 80 of the rust remover 50.

[0062] When the rust remover 50 returns to the point where the winch 40 started to be lowered in step S8 described above, the raising operation of the rust remover 50 is stopped (step S10). In this case, the operator operates the remote control R to turn off the winch 40 and stop it.

[0063] After step S10, in step S11, it is determined whether or not the rust has been successfully removed from the target surface Gc. Between steps S7 to S10 described above, the camera 90 continues to capture images of the target surface Gc of the guide rail G. The captured images are sent to the display unit D, and the operator can check the status of rust removal on the target surface Gc by viewing the captured images displayed on the display unit D. After checking the status of rust removal, the operator determines whether or not the rust has been successfully removed from the target surface Gc. If rust removal is insufficient, the process proceeds to step S8 described above to continue rust removal.

[0064] On the other hand, if the rust on the target surface Gc has been removed, the derusting is finished. In this case, the ON / OFF button on the control box 92 is pressed to turn off the derusting machine 50 (step S12). This causes the camera 90 to stop capturing images of the target surface Gc.

[0065] After step S12, in step S13, the shoe member 73 of the attachment 70 is moved away from the target surface Gc of the guide rail G. In this case, the above-mentioned adjustment bolt 74 is loosened.

[0066] After step S13, in step S14, the rust remover 50 is pulled out from the guide rail G. In this case, the slit 86 of the housing 51, the guide roller 61 of the lower guide portion 60, and the guide roller 66 of the upper guide portion 65 are separated from the blade portion Gb of the guide rail G.

[0067] After step S14, in step S15, the rust remover 50 is removed from the elongated member 41. In this case, the hook 42 attached to the elongated member 41 is removed from the eyebolt 55 of the rust remover 50.

[0068] After step S15, the winch 40 is removed from the winch bracket 30 in step S16.

[0069] After step S16, the winch bracket 30 is removed from the guide rail G in step S17.

[0070] This completes the rust removal work on one of the guide rails G. The rust removal work on the other guide rail G can be carried out in the same manner as described above.

[0071] As described above, according to this embodiment, a winch 40 is attached to a winch bracket 30 attached to a guide rail G. A housing 51 of a rust remover 50 is connected to a long member 41 suspended from the winch 40, and an upper guide portion 65 and a lower guide portion 60 are attached to the lower and upper parts of the housing 51 to guide the housing 51 along the guide rail G. An attachment 70 that polishes a target surface Gc of the guide rail G is attached to the housing 51. As a result, by driving the winch 40, the rust remover 50 is raised and lowered along the guide rail G, while the attachment 70 polishes the target surface Gc. This makes it possible to easily remove rust that has formed on the guide rail G.

[0072] Furthermore, according to this embodiment, a winch 40 is attached to the guide rail G via a winch bracket 30, and a rust remover 50 suspended from the winch 40 can remove rust from the target surface Gc of the guide rail G. By driving the winch 40, the rust remover 50 can be raised or lowered, allowing rust removal work to be performed over a wide area of ​​the guide rail G. Therefore, even if a car 3 is not installed, rust removal work on the target surface Gc can be performed, and rust that has formed on the guide rail G can be easily removed.

[0073] Furthermore, according to this embodiment, the attachment 70 includes a shoe member 73 that can come into contact with the target surface Gc of the guide rail G and that can move in a direction perpendicular to the target surface Gc of the guide rail G. This allows the shoe member 73 to come into contact with the target surface Gc, making it possible to effectively polish the target surface Gc. As a result, rust on the target surface Gc can be effectively removed.

[0074] Furthermore, according to this embodiment, the rust remover 50 includes a receiving portion 80 that receives polishing swarf generated by polishing the target surface Gc. This prevents the polishing swarf from adhering to the target surface Gc of the guide rail G, preventing interference with the ascent and descent of the car 3. It also prevents the polishing swarf from scattering around or falling down the elevator shaft 2, simplifying the cleaning work after the rust removal work. This allows for labor-saving in the rust removal work.

[0075] Furthermore, according to this embodiment, a slit 86 through which the guide rail G can pass is formed in the bottom plate 81 of the receiving part 80 attached to the housing 51, and a vertically extending embankment wall 83 is connected to the edge of the slit 86 in the bottom plate 81. This makes it possible to prevent polishing dust placed on the upper surface of the bottom plate 81 of the receiving part 80 from falling from the bottom plate 81. This makes it possible to further prevent polishing dust from adhering to the target surface Gc of the guide rail G.

[0076] Furthermore, according to this embodiment, a pair of outer walls 82 extend upward from the bottom plate 81 at both side edges 81a of the bottom plate 81 of the receiving portion 80 attached to the housing 51. This further prevents polishing dust from scattering around or falling down the elevator shaft 2, and further simplifies the cleaning work after the rust removal work. This further reduces the labor required for the rust removal work.

[0077] Furthermore, according to this embodiment, the rust remover 50 includes a camera 90 that can capture an image of the target surface Gc of the guide rail G. This allows the target surface Gc to be captured when the rust remover 50 is raised and lowered. Therefore, the target surface Gc can be captured over the entire area where the rust removal work has been performed.

[0078] Furthermore, according to this embodiment, the camera 90 has a communication function for transmitting captured images. This allows the captured images to be transmitted to the outside, and the captured images can be obtained externally. The captured images can be displayed on a monitor, and in this case, the rust removal status of the target surface Gc after the rust removal work can be easily confirmed. Furthermore, the rust removal status can be confirmed over the entire range of the target surface Gc, preventing rust from remaining.

[0079] Furthermore, according to this embodiment, the rust remover 50 includes a battery 93 that supplies power to the camera 90. This eliminates the need to supply power to the camera 90 from an external power source, and also eliminates the need for wiring to connect the camera 90 to the external power source. This allows the rust remover 50 to be easily raised and lowered along the guide rail G.

[0080] In the above-described embodiment, an example has been described in which the winch bracket 30 is attached to the upper part of the guide rail G. However, the winch bracket 30 may be attachable to a part other than the upper part of the guide rail G. Even in this case, rust can be removed from the target surface of the guide rail G by suspending the rust remover 50 from the position where the winch bracket 30 is attached.

[0081] In the above-described embodiment, an example has been described in which the attachment 70 includes a pair of shoe members 73 that polish the corresponding side surfaces as the target surface Gc of the guide rail G to remove rust from both side surfaces of the blade portion Gb. However, this is not limited to this, and the end surface of the blade portion Gb located inside the hoistway 2 may also be included in the target surface Gc. As a result, the attachment 70 may further include a shoe member (not shown) that polishes the end surface. In this case, the three shoe members may be integrally formed and, when attached to the second attachment member 72, may be formed in a C-shape so as to cover the blade portion Gb when viewed vertically.

[0082] (Second embodiment) Next, a rust removing device for an elevator according to a second embodiment will be described with reference to FIGS.

[0083] 11 and 12, the rust remover is different mainly in that it includes a pair of grinders that polish the corresponding target surfaces of the guide rail, and other configurations are substantially the same as those of the first embodiment shown in Figures 1 to 10. In Figures 11 and 12, the same parts as those of the first embodiment shown in Figures 1 to 10 are designated by the same reference numerals, and detailed description thereof will be omitted.

[0084] 11 and 12, the rust remover 50 according to this embodiment does not include the above-described attachment 70, but includes a pair of grinders 100. The grinders 100 are attached to the housing 51 and are configured to grind (or grind) the corresponding target surfaces Gc of the guide rail G.

[0085] As shown in Figures 11 and 12, the housing 51 according to this embodiment is different from the housing 51 shown in Figure 2 etc. The housing 51 shown in Figures 11 and 12 is generally made up of H-shaped steel. The lower part of the H-shaped steel corresponds to the lower plate 52, and the upper part of the H-shaped steel corresponds to the upper plate 53.

[0086] A grinder base 101 is attached to the upper surface of the lower plate 52 of the housing 51, and a grinder bracket 102 is attached to the grinder base 101. A body 100a of the grinder 100 is attached to the grinder bracket 102. The grinder 100 may be attached to the housing 51 so that an abrasive disc 100b rotatably mounted on the body 100a can abut against the target surface Gc. In step S6 shown in FIG. 10 , the attachment position of the grinder 100 may be adjusted so that the abrasive disc 100b abuts against the target surface Gc. For example, the attachment positions of the grinder base 101 and the grinder bracket 102 may be adjusted. In step S13 shown in FIG. 10 , the abrasive disc 100b of the grinder 100 may be moved away from the target surface Gc.

[0087] The grinder 100 may be controlled by the control box 92 described above. In this case, the grinder 100 may be switched on / off depending on whether the rust remover 50 is on / off. For example, when the rust remover 50 is on, the grinder 100 may be on and the abrasive disc 100b may rotate. When the rust remover 50 is off, the grinder 100 may be off and the abrasive disc 100b may stop rotating. The grinder 100 may be supplied with power from the battery 93 described above.

[0088] As described above, according to this embodiment, the rust remover 50 includes a pair of grinders 100 that grind the corresponding target surfaces Gc of the guide rail G. This allows the grinders 100 to be brought into contact with the target surfaces Gc to grind the target surfaces Gc. This allows rust on the target surfaces Gc to be effectively removed.

[0089] (Third embodiment) Next, a rust removing device for an elevator according to a third embodiment will be described with reference to FIGS.

[0090] In the third embodiment shown in Figures 13 to 16, the rust removing apparatus is different mainly in that it includes a pair of rust removers that can be raised and lowered along corresponding guide rails, and other configurations are substantially the same as those of the first embodiment shown in Figures 1 to 10. In Figures 13 to 16, the same parts as those of the first embodiment shown in Figures 1 to 10 are given the same reference numerals and detailed description thereof will be omitted.

[0091] As shown in FIGS. 13 and 14, the rust removing device 20 according to this embodiment includes a pair of winch brackets 30, a pair of winches 40, a pair of rust removers 50, and a connecting rod 110.

[0092] The above-mentioned winch bracket 30 is attached to the upper part of each guide rail G. The above-mentioned winch 40 is attached to each winch bracket 30.

[0093] A rust remover 50 is suspended from each winch 40 via a long member 41. Each rust remover 50 is capable of moving up and down along the corresponding guide rail G.

[0094] The connecting rod 110 connects the pair of rust removers 50. The connecting rod 110 is an example of a connecting member. The connecting rod 110 is configured to prevent each rust remover 50 from moving away from the corresponding guide rail G. In this embodiment, the connecting rod 110 may extend linearly from one rust remover 50 to the other rust remover 50. The pair of rust removers 50 may be connected by two connecting rods 110.

[0095] As shown in FIGS. 13 to 15, the connecting rod 110 may include a first connecting rod 111 and a second connecting rod 112. As shown in FIG. 15, the first connecting rod 111 may include a hollow portion 113, and the second connecting rod 112 may include a small diameter portion 112a and a large diameter portion 112b. The small diameter portion 112a of the second connecting rod 112 may be inserted into the hollow portion 113. The first connecting rod 111 and the second connecting rod 112 may be attached using a connecting bolt B5. The small diameter portion 112a of the second connecting rod 112 may be formed with a plurality of second bolt holes 115 through which the connecting bolt B5 passes. The plurality of second bolt holes 115 may be formed at different positions in the axial direction of the second connecting rod 112. The first connecting rod 111 may be formed with a first bolt hole 114 through which the connecting bolt B5 passes. The number of first bolt holes 114 formed in the first connecting rod 111 may be one. The length of the connecting rod 110 can be adjusted by selecting the second bolt holes 115 formed in the second connecting rod 112. The second bolt holes 115 may be threaded holes.

[0096] The connecting rods 110 may be attached to the housings 51 of the respective rust removers 50 via connecting rod brackets 116. More specifically, the connecting rod brackets 116 may be attached to the lower plates 52 of the corresponding housings 51 together with the lower guide brackets 62 by bolts B6. The first connecting rod 111 may be welded to the corresponding connecting rod brackets 116. The second connecting rod 112 may be welded to the corresponding connecting rod brackets 116. The large diameter portion 112b of the second connecting rod 112 may have the same diameter (or outer diameter) as the first connecting rod 111. The large diameter portion 112b of the second connecting rod 112 may be welded to the corresponding connecting rod bracket 116.

[0097] Next, a method for removing rust from the target surface Gc of the guide rail G using the rust removing device 20 according to this embodiment configured as described above will be described with reference to FIG.

[0098] In the same manner as in steps S1 to S4 shown in FIG. 10, the winch bracket 30 and the winch 40 are attached to each guide rail G, and the rust remover 50 is suspended from each winch 40.

[0099] Thereafter, in step S21, each rust removing machine 50 is lowered. In this case, the operator operates the remote control R to turn on the winch 40 and operate it for lowering. The operator may operate the left and right rust removing machines 20 individually using the remote control R for the right rust removing machine 20 and the remote control R for the left rust removing machine 20. As the rust removing machines 50 are lowered, the gondola is also lowered. In step S21, the rust removing machines 50 are not pushed into the guide rail G, so rust is not removed from the target surface Gc of the guide rail G.

[0100] When the gondola and the rust remover 50 reach the lowest position, each winch 40 is stopped (step S22).

[0101] After step S22, in step S23, each rust remover 50 is pushed into the corresponding guide rail G. Step S23 may be performed in the same manner as step S5 shown in FIG.

[0102] After step S23, in step S24, the first connecting rod 111 of the connecting rod 110 is connected together with the connecting rod bracket 116 to the housing 51 of the right-side rust remover 50.

[0103] After step S24, in step S25, the second connecting rod 112 of the connecting rod 110 is connected to the housing 51 of the left rust remover 50 together with the connecting rod bracket 116. In this case, the small diameter portion 112a of the second connecting rod 112 is inserted into the hollow portion 113 of the first connecting rod 111.

[0104] After step S25, in step S26, the first connecting rod 111 and the second connecting rod 112 are fixed together with connecting bolts B5. With the left and right rust removers 50 pressed into the guide rails G, the connecting bolts B5 are passed through the second bolt holes 115 that can be tightened among the multiple second bolt holes 115 formed in the second connecting rod 112.

[0105] After step S26, in step S27, the shoe members 73 of each attachment 70 are brought into contact with the target surfaces Gc of the corresponding guide rails G. Step S24 may be performed in the same manner as step S6 shown in FIG.

[0106] After step S27, in step S28, the on / off button of each control box 92 is pressed to turn on each rust remover 50. This starts rust removal, and the camera 90 of each rust remover 50 starts capturing an image of the target surface Gc.

[0107] After step S28, in step S29, each rust remover 50 is raised. In this case, the operator operates the remote control R to turn on the winch 40 and operate it to raise. As the rust remover 50 rises, the gondola also rises. While the rust remover 50 is rising, the shoe member 73 of the attachment 70 abuts against the target surface Gc of the guide rail G and polishes the target surface Gc.

[0108] When the gondola and the rust remover 50 reach the top, the winch 40 is lowered (step S30). In this case, the operator switches the winch 40 from ascending operation to descending operation by operating the remote control R. While the rust remover 50 is descending, the shoe member 73 of the attachment 70 abuts against the target surface Gc of the guide rail G and polishes the target surface Gc.

[0109] When the rust remover 50 returns to the point where the winch 40 started to rise in step S29 described above, the lowering operation of the rust remover 50 is stopped (step S31). In this case, the operator operates the remote control R to turn the winch 40 OFF and stop it.

[0110] After step S31, in step S32, it is determined whether or not the rust has been successfully removed from the target surface Gc. Step S32 may be performed in the same manner as step S11 shown in Fig. 10. If the rust has not been sufficiently removed, the process proceeds to step S29 described above to continue the rust removal.

[0111] On the other hand, if the rust on the target surface Gc has been removed, the derusting is terminated. In this case, the ON / OFF button on the control box 92 is pressed to turn off the derusting machine 50 (step S33). This causes the camera 90 of each derusting machine 50 to stop capturing images of the target surface Gc.

[0112] After step S33, in step S34, the shoe member 73 of the attachment 70 is moved away from the target surface Gc of the guide rail G. Step S34 may be performed in the same manner as step S13 shown in FIG.

[0113] After step S34, in step S35, the first connecting rod 111 and the second connecting rod 112 of the connecting rod 110 are removed from the corresponding housing 51 of the rust remover 50. Step S35 may be performed in the reverse order of steps S24 to S26 described above.

[0114] Thereafter, the rust removing devices 20 are removed from the respective guide rails G in the same manner as in steps S14 to S17 shown in FIG.

[0115] In this way, the derusting work is completed for both guide rails G. The derusting device 20 according to this embodiment can perform the derusting work for both guide rails G simultaneously, thereby reducing the time required for the derusting work.

[0116] As described above, according to this embodiment, the rust removers 50 are suspended from the winches 40 attached to each guide rail G via the winch brackets 30, and these rust removers 50 are connected by the connecting rods 110. As a result, the connecting rods 110 function as tension rods, and can prevent each rust remover 50 from separating from the corresponding guide rail G. This allows rust to be effectively removed from the target surface Gc of the guide rail G.

[0117] Furthermore, according to this embodiment, the connecting rod 110 extends linearly from one rust remover 50 to the other rust remover 50. This allows the connecting rod 110 to function even better as a tension rod, and effectively prevents each rust remover 50 from separating from the corresponding guide rail G.

[0118] According to the embodiment described above, rust that has formed on the guide rail G can be easily removed.

[0119] Although several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be embodied in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included within the scope and spirit of the invention, and are also included in the inventions and their equivalents as defined in the claims. [Explanation of symbols]

[0120] 1: elevator device, 8: car guide rail, 9: weight guide rail, 20: rust removal device, 30: winch bracket, 40: winch, 41: long member, 50: rust removal machine, 51: housing, 60: lower guide portion, 65: upper guide portion, 70: attachment, 73: shoe member, 80: receiving portion, 81: bottom plate, 81a: side edge portion, 81b: distal edge portion, 82: outer wall, 83: embankment wall, 86: slit, 90: camera, 93: battery, 100: grinder, 110: connecting rod, 111: first connecting rod, 112: second connecting rod, G: guide rail, Gc: target surface

Claims

1. A rust removal device for removing rust from elevator guide rails, a bracket attached to the guide rail; an elevator attached to the bracket; a rust remover that is suspended from the elevator via a long member and can be raised and lowered along the guide rail by driving the elevator; Equipped with The rust remover includes a housing connected to the elongated member, guide sections attached to the lower and upper parts of the housing to guide the housing along the guide rail, and a rust remover main body attached to the housing to polish the target surface of the guide rail. Elevator rust removal equipment.

2. The rust removal main body includes a shoe member that can contact the target surface of the guide rail and that can move in a direction perpendicular to the target surface of the guide rail. The elevator rust removal device according to claim 1.

3. The rust remover includes a receiving portion for receiving swarf generated by polishing the target surface. The rust removing device for an elevator according to claim 1 or 2.

4. the receiving portion includes a bottom plate attached to the housing; A slit through which the guide rail can pass is formed in the bottom plate, A vertically extending embankment wall is connected to an edge of the slit in the bottom plate. The elevator rust removal device according to claim 3.

5. The receiving portion includes a bottom plate attached to the housing, and a pair of outer walls extending upward from the bottom plate at both side edges of the bottom plate. The elevator rust removal device according to claim 3.

6. The rust remover includes an imaging unit capable of imaging the target surface of the guide rail, The rust removing device for an elevator according to claim 1 or 2.

7. The imaging unit has a communication function for transmitting the captured image to an external device. The rust removing device for an elevator according to claim 6.

8. The rust remover includes a battery that supplies power to the imaging unit. The rust removing device for an elevator according to claim 6.

9. The rust remover includes a pair of grinders that grind the corresponding target surfaces of the guide rail. The elevator rust removal device according to claim 1.

10. The bracket is attached to each of the guide rails, The elevator is attached to each of the brackets, The rust remover suspended from the corresponding elevator via the elongated member can move up and down along the corresponding guide rail, The pair of rust removers are connected by a connecting member. The rust removing device for an elevator according to claim 1 or 2.

11. The connecting member extends linearly from one of the rust removers to the other of the rust removers. The rust removing device for an elevator according to claim 10.

Images