JPWO2020008596A1 - Door rail cleaning device, door rail cleaning method, and elevator - Google Patents

Abstract

The cleaning device 20 has a hanger fixing portion fixed to the hanger 4b on which the door is suspended, and a bottom surface 52a that comes into contact with the upper surface 6b of the door rail 6 when cleaning the door rail 6, and scrapes foreign matter on the door rail 6. A scraper part 52 for removing is provided. By moving the door while the cleaning device 20 is fixed to the hanger 4b, the scraper portion 52 scrapes off the foreign matter on the upper surface 6b of the door rail 6 and cleans the upper end portion of the door rail 6.

Description

The present invention relates to a door rail cleaning device and a door rail cleaning method for cleaning a door rail that suspends and guides a door in an elevator. The invention also relates to an elevator.

As described in Patent Document 1, an elevator includes a door rail that suspends and guides a door installed in a basket or a hall. Specifically, the door is suspended on a hanger, and a roller that moves on the door rail is rotatably attached to the hanger.

International Publication No. 2006/097997

As the roller moves on the door rail, foreign matters such as dust and lubricating oil easily move to the end portion on the door rail and easily accumulate at the end portion. Further, particularly in the case of a door rail installed in a basket, it is difficult for a person's hand to reach the end of the door rail, and it is difficult to remove foreign matter accumulated at the end. However, if the foreign matter collected at the end portion cannot be removed, the foreign matter may hinder the smooth opening and closing of the door.

Therefore, it is an object of the present invention to provide a door rail cleaning device and a door rail cleaning method that easily remove foreign matter accumulated at the ends of elevator door rails. Another object of the present invention is to provide an elevator that easily removes foreign matter accumulated at the end of a door rail.

In order to solve the above problems, a door rail cleaning device according to the present invention is a door rail cleaning device for cleaning a door rail that suspends and guides a door in an elevator, the hanger fixing being fixed to a hanger on which the door is suspended. And a foreign matter removing unit that has a lower surface that comes into contact with an upper surface of the door rail when cleaning the door rail and removes foreign matter on the door rail.

According to the present invention, the door rail cleaning device can be fixed to the hanger of the elevator in a state where the lower surface of the foreign matter removing portion is brought into contact with the upper surface of the door rail and the foreign matter removing portion is arranged on the tip side of the roller sliding on the rail. Further, with the door rail cleaning device thus fixed to the hanger, the door can be moved in the opening direction up to the fully opened state or moved from the fully opened state in the closing direction. Therefore, with that operation, it is possible to scrape foreign matter accumulated at the end of the door rail and push it out of the door rail, or stick the scraped foreign matter to the foreign matter removal section and carry it inside the door rail. .. Therefore, it becomes easier to remove the foreign matter located at the end of the door rail, and the door can be moved smoothly.

Further, in the present invention, when the door is fully opened, a part of the lower surface of the foreign matter removing portion contacts the upper surface of the door rail, and a tip of the lower surface projects outward from one end of the door rail. In addition, the hanger fixing portion may be fixed to the hanger.

According to the above configuration, when the door is fully opened, the tip of the lower surface of the foreign matter removing portion can be projected outward from the tip on one side of the door rail. Therefore, it becomes easy to push the foreign matter accumulated at the end of the door rail to the outside of the door rail, and the door rail can be cleaned cleanly.

Further, in the present invention, the foreign material removing portion is provided on one side in the height direction so as to extend in a direction substantially orthogonal to the height direction, and has an oil supply material having a portion located on the other side in the height direction. A main body including an attachment portion, an oil supply material which is attached to the oil supply material attachment portion in a state in which a tip end side projects from the main body to the other side in the height direction, and which is made of a material capable of being impregnated with oil; And a holder having the hanger fixing portion, and in a state where the hanger fixing portion is fixed to the hanger, the other side of the holding portion in the height direction is a lower side. It may be possible to have a first state in which the main body is held in a state in which the main body is held and a second state in which the main body is held in a state in which the one side of the holding portion is on the lower side.

According to the above configuration, in the first state, the lower end of the oil supply material attached to the oil supply material mounting portion is brought into contact with the upper surface of the door rail, so that the upper surface of the door rail can be lubricated with the oil impregnated in the oil supply material. .. Therefore, by keeping the first state during normal operation of the elevator, the door rail cleaning device can be used as an oil supply device during normal operation, and the rollers can easily rotate and move on the door rail smoothly.

Further, in the second state, the lower surface of the foreign matter removing portion can be brought into contact with the upper surface of the door rail, and the foreign matter removing portion can be disposed on the tip side of the roller. Therefore, at the time of cleaning the door rail, in the second state, by moving the door to the fully opened state in the opening direction or from the fully opened state to the closing direction, the foreign matter removal operation on the door rail can be executed.

Furthermore, by keeping the first state during normal operation of the elevator, not only can the oil from the fuel filler be used to lubricate the door rail at all times, but also the foreign matter removing portion can be retained above the fuel filler without contacting the door rail. Therefore, it is not necessary to bring a door rail cleaning device at the time of cleaning the door rail, and the door rail can be cleaned only by turning over the main body and holding it by the holding portion. Therefore, the convenience of handling the door rail cleaning device can be improved.

Further, in the present invention, the refueling material mounting portion is a housing recess having an opening on the other side in the height direction, and the refueling material is a housing part housed in the housing recess and the height above the opening. The main body has a protruding portion that protrudes to the other side in the vertical direction, and the main body has a bottom plate portion that constitutes the bottom portion of the accommodation recess on one side in the height direction, and the bottom plate portion communicates with the accommodation recess. It may have a through hole.

According to the above configuration, the refueling material can be easily and surely attached to the main body only by accommodating the accommodating portion of the refueling material in the accommodation recess by press fitting or the like. Further, since most of the outer surface of the housing portion can be covered with the inner surface of the housing recess when the fuel filler is attached, it is possible to suppress drying or volatilization of the oil impregnated in the fuel filler. Furthermore, since a through hole is provided in the bottom plate portion that constitutes the bottom of the accommodation recess, when the elevator is operating normally and the refueling material is in contact with the upper surface of the door rail, a dropper or the like is used to supply the lubricating oil. It can be supplied from the upper side to the accommodation portion of the oil supply material through the through hole. Therefore, the lubricating oil can be easily replenished to the oil supply material without removing the cleaning device from the hanger.

Further, in the present invention, a pressing structure having a hanger attaching portion attached to the hanger and a pressing portion extending in a height direction is further provided, and the pressing portion is attached to the oil supply material attaching portion in the second state. The foreign matter removing portion may be pressed against the upper surface by pressing the oil supply material to one side in the height direction.

According to the above configuration, the foreign matter removing portion can be pressed against the upper surface of the door rail by the pressing structure in the second state. Therefore, the lower surface of the foreign matter removing portion can be brought into close contact with the upper surface of the door rail during cleaning, and the foreign matter on the door rail can be effectively scraped off.

A door rail cleaning method according to the present invention is a door rail cleaning method for cleaning a door rail that suspends and guides a door in an elevator using the door rail cleaning device of the present invention, wherein the door rail cleaning device is in a fully opened state of the door. Fixing for fixing the hanger fixing portion to the hanger such that a part of the lower surface of the foreign matter removing portion contacts the upper surface of the door rail and the tip of the lower surface projects outward from one end of the door rail. And a moving step of moving the door in the opening direction to the fully opened state after the fixing step.

An elevator according to the present invention includes the door rail cleaning device of the present invention.

According to these inventions, it is easy to remove foreign matter accumulated at the end of the door rail.

Further, in the elevator of the present invention, when the door is fully opened, a part of the lower surface of the foreign matter removing portion of the door rail cleaning device contacts the upper surface of the door rail, and the tip of the lower surface is outside from one end of the door rail. You may project to.

According to the above configuration, when the door is fully opened, the tip of the lower surface of the foreign matter removing portion can be projected outward from the tip on one side of the door rail. Therefore, it becomes easy to push the foreign matter accumulated at the end portion of the door rail out of the door rail, and the door rail can be cleaned cleanly.

According to the door rail cleaning device, the door rail cleaning method, and the elevator of the present invention, it is easy to easily remove the foreign matter accumulated at the end of the door rail.

It is a model front view when the car door of an elevator is seen from the hall side, and is a figure explaining operation of a pair of car doors. It is an expansion perspective view showing the circumference of the longitudinal direction outside part of the hanger in the elevator currently operating. It is a perspective view when the cleaning device is seen from the direction shown by arrow A in FIG. It is a perspective view of the holder of a cleaning device. FIG. 4 is a perspective view corresponding to FIG. 3 of the cleaning device in which the holder holds the main body upside down as compared with the case shown in FIG. 3. It is an expansion perspective view corresponding to FIG. 2 in the elevator in which cleaning work is performed. It is a side view of a pressing structure that can be provided in the cleaning device. It is a perspective view of the holder of a modification.

Embodiments according to the present invention will be described below in detail with reference to the accompanying drawings. When a plurality of embodiments and modifications are included below, it is assumed from the beginning that a new embodiment is constructed by appropriately combining the characteristic parts. Further, in the following embodiments, the same reference numerals are given to the same components in the drawings, and duplicated description will be omitted. Further, a plurality of drawings include schematic drawings, and the dimensional ratios of length, width, and height in each member do not necessarily match between different drawings.

FIG. 1 is a schematic front view of the car door 2 of the elevator 1 when viewed from the landing side, and is a diagram for explaining the operation of the pair of doors 2 a and 2 b of the car door 2. As shown in FIG. 1, the basket 5 has a door rail 6 extending in the width direction of the doorway at the top of the doorway. The doors 2a and 2b are suspended by hangers 4a and 4b, and rollers 7a and 7b that rotate on the door rail 6 are rotatably attached to the hangers 4a and 4b.

The elevator 1 further includes first and second pulleys 8a and 8b and an endless belt 9. Each of the first and second pulleys 8a and 8b is arranged facing each other in the width direction so that the rotation axis extends in the normal direction of the basket door 2, and the first pulley 8a is rotated by the power of the motor 10. .. The endless belt 9 is looped over the first and second pulleys 8a and 8b, and circulates when the motor 10 is driven. One hanger 4a is fixed to an upper part 9a that moves in the width direction on the upper side when the endless belt 9 circulates, and the other hanger 4b is positioned below the upper part 9a and the endless belt 9 circulates. It is sometimes fixed to the lower part 9b which moves opposite to the upper part 9a.

As a result, when the motor 10 rotates to one side, the doors 2a and 2b move to the opposite sides in the width direction in the opening direction, and when the motor 10 rotates to the other side, the doors 2a and 2b move to the other side. Move in the opposite direction to the closing direction. In the example shown in FIG. 1, the endless member that circulates and moves is the endless belt 9, but the endless member may be an interlocking rope (a loop-shaped metal wire).

FIG. 2 is an enlarged perspective view showing the periphery of the outer portion in the longitudinal direction of the hanger 4b in the elevator 1 that is normally operating. As shown in FIG. 2, the elevator 1 includes a door rail cleaning device (hereinafter, simply referred to as a cleaning device) 20 attached to the hanger 4b, and the cleaning device 20 includes a holder 30, a main body 50, and an oil supply material 70.

The holder 30 is composed of a metal flat plate that is bent in a substantially orthogonal direction at a plurality of locations, and is fixed to the rail side surface 12 of the hanger 4b with bolts 11. Specifically, the holder 30 includes a first flat plate portion 31, a second flat plate portion 32, a third flat plate portion 33, and a fourth flat plate portion 34, which are examples of hanger fixing portions, and the back surface of the first flat plate portion 31 is , Is arranged so as to abut the rail side surface 12. The first flat plate portion 31 has a recess or a through hole that penetrates in the thickness direction. The first flat plate portion 31 is fixed to the hanger 4b by tightening the shaft portion of the bolt 11 into the hanger 4b after passing through the recess or the through hole.

The second flat plate portion 32 extends substantially from the end of the first flat plate portion 31 on the side opposite to the roller 7b side in the direction normal to the rail side surface 12. In addition, the third flat plate portion 33 extends in the extending direction of the door rail 6 from the end of the second flat plate portion 32 opposite to the first flat plate portion 31 side to the side opposite to the first flat plate portion 31 side. .. The fourth flat plate portion 34 extends from the end of the third flat plate portion 33 on the side opposite to the second flat plate portion 32 side to the rail side surface 12 side in the normal line direction.

The main body 50 is made of, for example, a metal such as aluminum or steel, or a hard resin such as ABS resin or polycarbonate. The main body 50 has a mounting portion that is housed in a recess surrounded by the second to fourth flat plate portions 32 to 34 on three sides. The mounting portion is mounted in the recess, and as a result, the main body 50 is indirectly mounted to the hanger 4b via the holder 30 and stands still with respect to the hanger 4b.

The oil filler 70 is made of a material that can be impregnated with oil, and is made of, for example, felt, sponge, brush, or the like. The oil supply material 70 is impregnated with lubricating oil. The fuel filler 70 is attached to the main body 50. The mounting structure of the mounting portion to the recess and the mounting structure of the oil supply material 70 to the main body 50 will be described in detail later.

The refueling material 70 has a protrusion 71 that protrudes downward from the body 50 when attached to the body 50, and the lower end of the protrusion 71 contacts the upper surface of the door rail 6. With the movement of the hanger 4b, the protrusion 71 slides on the upper surface of the door rail 6 in the extending direction of the door rail 6, whereby the upper end 6a of the door rail 6 is lubricated with the oil impregnated in the oil supply material 70, As a result, the roller 7b can move smoothly on the door rail 6.

FIG. 3 is a perspective view of the cleaning device 20 when viewed from the direction indicated by arrow A in FIG. As shown in FIG. 3, the main body 50 has a pillar portion 51 formed of a pillar such as a rectangular parallelepiped, and a scraper portion 52 provided on one side in the height direction of the pillar portion 51. The scraper portion 52 is an example of a foreign matter removing portion, and extends in the orthogonal direction substantially orthogonal to the height direction of the column portion 51. The bottom surface 52a on one side in the height direction of the scraper portion 52 is a flat surface, and the bottom surface 52a extends in a direction substantially orthogonal to the height direction of the cleaning device 20.

The scraper portion 52 has a spatula shape, and more specifically, has a sharp blade shape whose thickness decreases toward the tip end side in the orthogonal direction. Since the scraper portion 52 has a sharp blade shape, by moving the scraper portion 52 relative to the plane with the bottom surface 52a of the scraper portion 52 in contact with the plane, Foreign matter that has adhered or accumulated can be scraped off and its flat surface can be cleaned.

The column portion 51 has a housing recess 73 as an example of an oil filler mounting portion. The housing recess 73 extends in the height direction and opens only on the other side in the height direction. The oil supply material 70 is attached to the accommodation recess 73 by press fitting or the like in a state where the tip end side projects from the accommodation recess 73 to the other side in the height direction. The oil supply material 70 may be detachable from the main body 50, but may be fixed to the main body 50 with an adhesive or the like. The refueling material 70 has a housing 77 that is housed in the housing recess 73, and a protrusion 71 that projects from the opening 75 of the housing recess 73 to the other side in the height direction. Furthermore, the main body 50 has a bottom plate portion 55 that constitutes the bottom portion of the accommodation recess 73 on one side in the height direction. The bottom plate portion 55 is provided with a through hole 56 communicating with the housing recess 73.

Next, a structure for holding the main body 50 by the holder 30 will be described. FIG. 4 is a perspective view of the holder 30. As shown in FIG. 4, the holder 30 includes the above-described first to fourth flat plate portions 31 to 34, and the first flat plate portion 31 is provided with one or more recesses 35. The recessed portion 35 opens on one side in the height direction and penetrates the first flat plate portion 31 in the thickness direction.

The holder 30 further includes a locking claw 36. The locking claw 36 projects from the end of the fourth flat plate portion 34 opposite to the third flat plate portion 33 side to the second flat plate portion 32 side. The first to fourth flat plate portions 31 to 34 and the locking claw 36 have the same height. Referring again to FIG. 3, the fourth flat plate portion 34 and the locking claw 36 are distorted so as to deform the locking claw 36 to the fourth flat plate portion 34 side, and the side surface of the main body 50 is locked. It is sandwiched between 36 and the second plane portion 32 and pressed from both sides. The main body 50 is held by the holder 30 by this pressing force. The second to fourth flat plate portions 32 to 34 and the locking claw 36 form a holding portion that holds the main body 50.

As shown in FIG. 3, the holder 30 is made of a strip-shaped metal material having a plurality of bent portions, and the main body 50 has a column portion 51 extending in the height direction. With such a structure, as shown in FIG. 5, it becomes possible to hold the main body 50 in the holder 30 in a state where the height direction of the column portion 51 is reversed as compared with FIG.

Then, as shown in FIG. 6, in this state, the shaft portion of the bolt 11 is inserted into the recess 35 of the holder 30 and then tightened into the hanger 4b, so that the bottom surface 52a of the scraper portion 52 is brought into contact with the upper surface of the door rail 6. The cleaning device 20 can be fixed to the hanger 4b in the state of being brought into contact with the 6b.

As shown in FIG. 2, the holder 30 is fixed to the hanger 4b, and the other side of the holding portion in the height direction is on the lower side (the refueling material 70 is on the lower side). The first state of holding the main body 50 can be taken. Further, as shown in FIG. 6, the holder 30 holds the main body 50 in a state in which the holding portion has one side in the height direction on the lower side (the scraper portion 52 is on the lower side). There are two states.

As described above, by moving the doors 2a and 2b in the first state, the refueling material 70 can be slid in the extending direction of the door rail 6 with respect to the upper surface 6b of the door rail 6, and the upper end of the door rail 6 can be slid. The portion 6a can be lubricated with the oil impregnated in the oil supply material 70. In addition, by moving the doors 2a and 2b in the second state, foreign matter attached to the upper surface 6b of the door rail 6 can be scraped off by the scraper portion 52, and the upper surface 6b of the door rail 6 can be cleaned.

The hanger 4b has a mounting hole for mounting the cleaning device 20. The bolt 11 is tightened into its mounting hole through the recess 35, so that the cleaning device 20 is fixed at a predetermined position of the hanger 4b. In the elevator 1, when the cleaning device 20 is fixed to the predetermined position of the hanger 4b and the doors 2a and 2b are fully opened, the tip of the scraper part 52 is located outside the tip of the door rail 6. Has become. As shown in FIG. 1, in the elevator 1, another cleaning device 20 is attached to the outside of the roller 7a of the hanger 4a.

As described above, the cleaning device 20 is used to clean the door rail 6 that suspends and guides the doors 2a and 2b in the elevator 1. In addition, the cleaning device 20 contacts the first flat plate portion (hanger fixing portion) 31 fixed to the hangers 4a and 4b on which the doors 2a and 2b are suspended, and the upper surface 6b of the door rail 6 when cleaning the door rail 6. A scraper portion (foreign matter removing portion) 52 having a bottom surface (lower surface) 52a for scraping foreign matter on the door rail 6 is provided.

Therefore, with the bottom surface 52a of the scraper portion 52 in contact with the top surface 6b of the door rail 6, and the scraper portion 52 is arranged on the tip side of the rollers 7a, 7b sliding on the door rail 6, the cleaning device 20 is mounted on the hanger of the elevator 1. It can be fixed to 4a and 4b. Further, with the cleaning device 20 thus fixed to the hangers 4a, 4b, the doors 2a, 2b can be moved in the opening direction to the fully opened state, or can be moved from the fully opened state in the closing direction. Therefore, by the operation, foreign matter accumulated at the end of the door rail 6 can be scraped off by the scraper portion 52 and pushed out of the door rail 6, or the scraped foreign matter can be attached to the scraper portion 52 and carried inside the door rail 6. It will be possible. Therefore, it becomes easy to remove the foreign matter located at the end portion of the door rail 6 which is difficult to remove in the conventional cleaning work, and the doors 2a and 2b can be moved smoothly.

Further, when the doors 2a and 2b are fully opened, a part of the bottom surface 52a of the scraper part 52 contacts the upper surface 6b of the door rail 6 and the tip of the bottom surface 52a projects outward from one end of the door rail 6. The 1 flat plate portion 31 may be fixed to the hangers 4a and 4b.

According to the above configuration, when the doors 2a and 2b are fully opened, the tip of the bottom surface 52a of the scraper portion 52 can be projected outward from the tip on one side of the door rail 6. Therefore, it becomes easy to push the foreign matter accumulated at the end of the door rail 6 to the outside of the door rail 6, and the door rail 6 can be cleaned cleanly.

In addition, the cleaning device 20 may include a main body 50 provided so that the scraper portion 52 extends to one side in the height direction in a direction substantially orthogonal to the height direction. An accommodating recess (oil supply material mounting portion) 73 having a portion located on the other side may be included. Further, the cleaning device 20 is attached to the accommodation recess 73 with its tip end protruding from the main body 50 to the other side in the height direction, and holds the main body 50 and the oil supply material 70 made of a material that can be impregnated with oil. The holder 30 having the holding portion and the first flat plate portion 31 may be provided. Further, the cleaning device 20 includes the main body 50 in a state where the first flat plate portion 31 is fixed to the hangers 4a and 4b and the other side of the holding portion in the height direction (the refueling material 70 side) is a lower side. It may be possible to have a first state in which the main body 50 is held and a second state in which the main body 50 is held in a state in which one side (scraper portion 52 side) in the height direction of the holding portion is on the lower side.

According to the above configuration, in the first state, the lower end of the oil supply material 70 attached to the housing recess 73 is brought into contact with the upper surface 6b of the door rail 6, so that the oil impregnated in the oil supply material 70 causes the door rail 6 to move. The upper surface 6b can be lubricated. Therefore, by leaving the elevator 1 in the first state during normal operation, the cleaning device 20 can be used as an oil supply device during normal operation, and the rollers 7a and 7b can easily rotate and move on the door rail 6 smoothly.

Further, in the second state, the bottom surface 52a of the scraper portion 52 can be brought into contact with the upper surface 6b of the door rail 6 and the scraper portion 52 can be arranged on the tip side of the rollers 7a, 7b. Therefore, at the time of cleaning the door rail 6, in the second state, by moving the doors 2a, 2b to the fully open state in the opening direction or from the fully opened state to the closing direction, the foreign matter removing operation on the door rail 6 can be executed. ..

Furthermore, by keeping the first state during normal operation of the elevator 1, not only the oil from the oil supply material 70 can constantly lubricate the door rail 6, but also the upper side of the oil supply material 70 with the scraper portion 52 not in contact with the door rail 6. Can be owned by Therefore, it is not necessary to bring the cleaning device 20 when cleaning the door rail 6, and the cleaning of the door rail 6 can be performed only by turning the main body 50 upside down and holding it by the holding portion of the holder 30. Therefore, the convenience of handling the cleaning device 20 can be improved.

Further, the oil supply material mounting portion may be a housing recess 73 having an opening 75 on the other side in the height direction. Further, the oil supply material 70 may include a housing portion 77 that is housed in the housing recess 73, and a projecting portion 71 that projects from the opening 75 to the other side in the height direction. Further, the main body 50 may have a bottom plate portion 55 that constitutes the bottom portion of the accommodation recess 73 on one side in the height direction. Then, the bottom plate portion 55 may have a through hole 56 communicating with the accommodation recess 73.

According to the above configuration, the refueling material 70 can be easily and surely attached to the main body 50 simply by accommodating the accommodation portion 77 of the refueling material 70 in the accommodation recess 73 by press fitting or the like. In addition, since most of the outer surface of the accommodation portion 77 can be covered with the inner surface of the accommodation recess 73 when the refueling material 70 is attached, it is possible to prevent the oil impregnated in the refueling material 70 from drying or volatilizing. Furthermore, since the through hole 56 is provided in the bottom plate portion 55 that constitutes the bottom portion of the accommodation recess 73, the dropper is provided when the elevator 1 is normally operating and the refueling material 70 is in contact with the upper surface 6b of the door rail 6. Etc., the lubricating oil can be supplied to the housing portion 77 of the oil supply material 70 from the upper side through the through hole 56. Therefore, the lubricating oil can be easily replenished to the oil supply material 70 without removing the cleaning device 20 from the hangers 4a and 4b.

The door rail cleaning method according to the present disclosure is a cleaning method for cleaning the door rail 6 that suspends and guides the doors 2a and 2b in the elevator 1 using the cleaning device 20 of the present disclosure. Further, in the door rail cleaning method, when the doors 2a and 2b are fully opened, a part of the bottom surface 52a of the scraper portion 52 of the cleaning device 20 contacts the top surface 6b of the door rail 6 and the tip of the bottom surface 52a is on one side of the door rail 6. A fixing step for fixing the first flat plate portion (hanger fixing portion) 31 to the hangers 4a, 4b so as to project outward from the tip, and a movement for moving the doors 2a, 2b in the opening direction to the fully opened state after the fixing step. Including steps. In the moving step, the doors 2a and 2b are preferably moved at least one reciprocation, more preferably two reciprocations or more. In addition, if the doors 2a and 2b are moved 5 times or more in the moving step, foreign matter adhered to the upper surface 6b of the door rail 6 can be easily removed.

Further, the elevator 1 according to the present disclosure may include the cleaning device 20 according to the present disclosure. However, in the elevator 1, when the doors 2a and 2b are fully opened, a part of the bottom surface 52a of the scraper portion 52 of the cleaning device 20 contacts the upper surface 6b of the door rail 6, and the tip of the bottom surface 52a is located at one end of the door rail 6 from the other end. It is preferable to project to the outside. In this case, it is easy to push the foreign matter accumulated at the end of the door rail 6 to the outside of the door rail 6, and the door rail 6 can be cleaned cleanly.

It should be noted that the present invention is not limited to the above-described embodiments and modifications thereof, and various improvements and changes can be made in the matters described in the claims of the present application and equivalent ranges thereof.

For example, in the above embodiment, there is no structure that presses the scraper portion 52 downward in the second state. However, the cleaning device may have a structure that presses the scraper portion 52 downward in the second state. Specifically, the cleaning device may further include a pressing structure 80 whose side view is shown in FIG. 7, and the pressing structure 80 may include a flat magnet 81 as an example of a hanger mounting portion that is mounted on the hanger. Good. In addition, the pressing structure 80 may have a coil spring 83 as an example of a pressing portion that is connected to the magnet 81 via a connecting portion 82 to which a magnet 81 is fixed, and the mounting surface 81a of the magnet 81 may be a side surface of a hanger door rail. The coil spring 83 may be able to extend in the vertical direction when attached to.

Then, referring to FIG. 6, the magnet 81 is attached to the rail side surface 12 of the hanger 4b in the upper region 12a located above the oil supply member 70 of the cleaning device 20 fixed to the hanger 4b, and the coil spring 83 is used to supply the oil supply member. 70 may be pressed downward. In this manner, the coil spring 83 presses the refueling material 70 downward, so that the coil spring 83 presses the scraper portion 52 downward through the refueling material 70, and the bottom surface 52 a of the scraper portion 52 is attached to the door rail 6. You may press on the upper surface 6b.

According to this configuration, the bottom surface 52a of the scraper portion 52 can be pressed against the upper surface 6b of the door rail 6 by the pressing structure 80 in the second state. Therefore, the bottom surface 52a of the scraper portion 52 can be brought into close contact with the upper surface 6b of the door rail 6, and foreign matter on the door rail 6 can be effectively scraped off. The case where the hanger attachment portion is the magnet 81 has been described. However, the hanger attachment portion includes a fastening member such as a bolt and a screw hole located on the rail side surface above the oil supply material of the cleaning device fixed to the hanger. May be included. Further, although the pressing portion is constituted by the coil spring 83, the pressing portion may be constituted by a rod-shaped portion, and when the hanger attachment portion is attached at a predetermined position of the hanger, the rod-shaped portion extends in the vertical direction. Good.

Further, the holder 30 does not have to have the structure shown in FIG. For example, the structure shown in FIG. 8 may be used, and the holder 130 includes a second flat plate portion 132 and a third flat plate portion 133 that are substantially parallel to the first flat plate portion 131 attached to the hanger, and the normal line of the first flat plate portion 131. When viewed from the direction, all of the second flat plate portion 132 and the third flat plate portion 133 may overlap the first flat plate portion 131.

In addition, the holder 130 connects the first flat plate portion 131 and the second flat plate portion 132 on one side in the extending direction, and the fourth flat plate portion 134 that extends in the normal direction and the second flat plate. You may provide the 5th flat plate part 135 which connects the other side edge parts of the extension direction of the part 132 and the 3rd flat plate part 133, and extends in the said normal direction.

Further, the holder 130 may include a locking claw 136 that projects from one end of the third flat plate portion 133 toward the first flat plate portion 131 side in the normal direction. The second flat plate portion 132, the third flat plate portion 133, the fifth flat plate portion 135, and the locking claw 136 may constitute a holding portion that holds the main body of the cleaning device. Further, the holder 130 may have a protruding portion 137 protruding in the normal direction on the third flat plate portion 133 side of the fourth flat plate portion 134, and this protruding portion 137 prevents the main body from being detached from the holding portion. You may. Alternatively, the holder may have a structure other than the structures shown in FIGS. 4 and 8. In short, the holder may have any structure as long as it has a holding portion that holds the main body and a hanger fixing portion that is fixed to the hanger.

Further, although the case where the main body 50 is held by the holding tool 30 by using the locking claws 36 has been described, the main body may be held by the holding tool by being screwed to the holding tool.

Further, although the case where the hanger fixing portion of the holder 30 includes one or more recesses 35 through which the bolts 11 are inserted has been described, the hanger fixing portion of the holder includes one or more through holes through which the bolts are inserted. But it's okay. Alternatively, the hanger fixing portion of the holder may include one or more recesses through which the bolts are inserted and one or more through holes through which the bolts are inserted.

Further, as shown in FIG. 5, the case where the pillar portion 51 of the main body 50 has a rectangular parallelepiped shape has been described, but the pillar portion of the main body may have a cylindrical shape or a polygonal pillar shape other than the rectangular parallelepiped shape, and may have a pillar shape. Good.

Further, the case has been described in which the foreign matter removing portion is configured by the sharp scraper portion 52, and the scraper portion 52 extends from the pillar portion 51 in the orthogonal direction substantially orthogonal to the height direction of the main body 50. However, the foreign matter removing unit does not need to be sharp on the tip side of the door rail in a state where the cleaning device is installed on the hanger. Further, the foreign matter removing portion does not have to protrude in the orthogonal direction from the portion of the main body other than the foreign matter removing portion. For example, the bottom surface of the pillar portion may be brought into contact with the top surface of the door rail, and the foreign matter removing portion may be formed of the bottom surface of the pillar portion.

The foreign matter removing unit may have a lower surface that comes into contact with the upper surface of the door rail, and the lower surface may have a hardness that can remove foreign matter on the door rail. Further, the hardness of the lower surface of the foreign matter removing portion may be harder than a material that can be used as an oil filler, or harder than all rubber materials. The hardness of the lower surface of the foreign matter removing portion is preferably 60 R (R on the R scale is represented by R) or more, more preferably 80 R or more, further 100 R or more, when Rockwell hardness is used as a criterion. It is most preferably 110R or higher. The lower surface of the foreign matter removing portion may be made of a resin material having such Rockwell hardness, but is preferably made of a metal material.

Further, the case has been described in which the main body 50 has the accommodation recess 73 that is open only on one side in the height direction, and the oil supply material 70 is attached to the accommodation recess 73. However, the main body may hold the oil supply material in the same structure as the above-mentioned holding body holds the main body. Alternatively, the main body may have a flat plate portion that extends in a substantially vertical direction in a state where the cleaning device is fixed to the hanger, and the oil supply material may be fixed to the flat plate portion with an adhesive or the like. In this case, the flat plate portion constitutes the lubrication material mounting portion, but since the lubrication material is exposed, it is not necessary to provide the through hole 56 (see FIG. 3) in the main body.

Moreover, the case where the cleaning device 20 has a configuration to which the refueling material 70 can be attached and has the refueling function in addition to the cleaning function has been described. However, the cleaning device may not have the mounting portion for mounting the refueling material, and the cleaning device may not have the refueling function but only the cleaning function.

Further, a case has been described in which the tip of the scraper portion 52 projects outward from the tip of the door rail 6 when the elevator 1 is fully opened. However, when the elevator is fully open, the tip of the foreign matter removing portion may be located at the same position as the tip of the door rail, or may be located closer to the center of the door rail than the tip of the door rail.

Moreover, the case where the cleaning device 20 is installed on the hangers 4a and 4b of the basket 5 has been described. However, the cleaning device may be fixed to a hanger that suspends the hall door. In particular, like the door rail of a car, it is often difficult for a person's hand to reach the tip of the door rail at the landing door on the bottom floor. Therefore, it is preferable to fix the cleaning device of the present disclosure to a hanger that suspends such a landing door, because the end portion of the door rail can be easily and cleanly cleaned.

Moreover, the case where the cleaning device 20 is applied to a double door including the doors 2a and 2b that move in opposite directions has been described. However, the cleaning device may be applied to a single-sided door having one or more doors and all the doors moving in the same direction.

1 Elevator, 2a, 2b door, 4a, 4b hanger, 6 door rail, 6b door rail upper surface, 20 cleaning device, 30,130 holding tool, 31,131 1st flat plate part (hanger fixing part), 50 main body, 52 scraper part (Foreign matter removing portion), 52a Bottom surface of scraper portion (lower surface of foreign matter removing portion), 55 Bottom plate portion of main body, 56 Through hole, 70 Lubricating material, 71 Projecting portion of lubricating material, 73 Recessed portion (lubricating material mounting portion), 75 opening of accommodating concave part, 77 accommodating part of oil supply material, 80 pressing structure, 81 magnet (hanger attaching part), 81a magnet attaching surface, 83 coil spring (pressing part).

In order to solve the above problems, a door rail cleaning device according to the present invention is a door rail cleaning device for cleaning a door rail that suspends and guides a door in an elevator, the hanger fixing being fixed to a hanger on which the door is suspended. A top surface of the door rail at the foreign material removal portion, the foreign material removal portion having a lower surface that contacts the upper surface of the door rail when cleaning the door rail, and a foreign material removal portion for scraping off the foreign material on the door rail. the lower surface in contact with the Ru consists of a hard resin material or a metal material than the usable material as lubrication material.

A door rail cleaning device according to another aspect of the present invention is a door rail cleaning device for cleaning a door rail that suspends and guides a door in an elevator, and is a hanger fixing portion fixed to a hanger on which the door is suspended. And a foreign matter removing portion for removing foreign matter on the door rail, the foreign matter removing portion having a lower surface that comes into contact with an upper surface of the door rail when cleaning the door rail, and the foreign matter removing portion is provided in one of a height direction. A main body including an oil supply material mounting portion having a portion located on the other side in the height direction and extending in a direction substantially orthogonal to the height direction, and a tip side from the main body in the height direction. An oil supply material that is attached to the oil supply material mounting portion in a state of protruding to the other side of the oil supply material and is made of a material that can be impregnated with oil, a holding portion that holds the main body, and a holder that has the hanger fixing portion. A first state in which the holding portion holds the main body in a state in which the other side in the height direction is a lower side in a state in which the hanger fixing portion is fixed to the hanger, and the holding portion. There it is possible to obtain take a second state for holding the body in a state where one side of the height direction is downward.

According to the present invention , in the first state, by contacting the lower end of the oil supply material attached to the oil supply material attachment portion with the upper surface of the door rail, the oil impregnated in the oil supply material can lubricate the upper surface of the door rail. .. Therefore, by keeping the first state during normal operation of the elevator, the door rail cleaning device can be used as an oil supply device during normal operation, and the rollers can easily rotate and move on the door rail smoothly.

In order to solve the above problems, a door rail cleaning device according to the present invention is a door rail cleaning device for cleaning a door rail that suspends and guides a door in an elevator, the hanger fixing being fixed to a hanger on which the door is suspended. A portion and a lower surface that comes into contact with an upper surface of the door rail when cleaning the door rail, and a foreign matter removing portion for scraping off foreign matter on the door rail, and the foreign matter removing portion in the height direction. A main body including an oil supply material mounting portion that is provided on one side so as to extend in a direction substantially orthogonal to the height direction and has a portion located on the other side in the height direction, and a tip side is the height from the main body. A holder that is attached to the oil supply material mounting portion in a state of protruding to the other side in the direction, and is configured of an oil supply material that is made of a material that can be impregnated with oil, a holding portion that holds the main body, and a hanger fixing portion. A first state in which the holding portion holds the main body in a state in which the other side in the height direction is a lower side in a state where the hanger fixing portion is fixed to the hanger; It is possible to take a second state in which the body holds the main body in a state in which one side in the height direction is on the lower side.
A door rail cleaning device according to another aspect of the present invention is a door rail cleaning device for cleaning a door rail that suspends and guides a door in an elevator, and is a hanger fixing portion fixed to a hanger on which the door is suspended. And a foreign matter removing portion for removing foreign matter on the door rail, the foreign matter removing portion having a lower surface that comes into contact with an upper surface of the door rail when cleaning the door rail, and the foreign matter removing portion is provided in one of a height direction. A main body including an oil supply material mounting portion having a portion located on the other side in the height direction and a tip end side protruding from the main body to the other side in the height direction to the oil supply material mounting portion. The hanger fixing part is fixed to the hanger, and the hanger fixing part is attached to the hanger, and the holding part holds the main body, and the holder has the hanger fixing part. In a state, a first state in which the holding portion holds the main body in a state in which the other side in the height direction is on the lower side, and a state in which the one side in the height direction of the holding portion is on the lower side in Ru can der can assume a second state for holding the body.

Claims (8)

A door rail cleaning device for cleaning a door rail for hanging and guiding a door in an elevator,
A hanger fixing part fixed to a hanger on which the door is suspended;
When cleaning the door rail, having a lower surface that contacts the upper surface of the door rail, a foreign matter removing unit for scraping foreign matter on the door rail,
A door rail cleaning device equipped with. In the fully opened state of the door, the hanger fixing portion is configured such that a part of the lower surface of the foreign matter removing portion contacts the upper surface of the door rail and a tip of the lower surface projects outward from one end of the door rail. The door rail cleaning device according to claim 1, wherein the door rail can be fixed to the hanger. A main body including an oil supply material mounting portion, the foreign matter removing portion being provided on one side in the height direction so as to extend in a direction substantially orthogonal to the height direction, and having a portion located on the other side in the height direction; ,
An oil supply material which is attached to the oil supply material attachment part in a state where the tip side projects from the main body to the other side in the height direction, and which is made of a material capable of being impregnated with oil,
A holder for holding the main body, and a holder having the hanger fixing portion,
In a state where the hanger fixing portion is fixed to the hanger, a first state in which the holding portion holds the main body in a state in which the other side in the height direction is a lower side, and the holding portion has the height The door rail cleaning device according to claim 1 or 2, which can be in a second state in which the main body is held in a state in which one side of the direction is a lower side. The oil supply material mounting portion is a housing recess having an opening on the other side in the height direction,
The refueling material has a housing portion housed in the housing recess, and a protruding portion protruding from the opening to the other side in the height direction,
The main body has a bottom plate portion forming a bottom portion of the accommodation recess on one side in the height direction,
The door rail cleaning device according to claim 3, wherein the bottom plate portion has a through hole that communicates with the housing recess. Further comprising a pressing structure having a hanger attaching part attached to the hanger and a pressing part extending in a height direction,
In the second state, the pressing portion presses the oil supply material attached to the oil supply material attachment portion to one side in the height direction to press the foreign matter removal portion to the upper surface. Door rail cleaning device described in. A door rail cleaning method for cleaning a door rail for suspending and guiding a door in an elevator by using the door rail cleaning device according to claim 1.
In the fully opened state of the door, a part of the lower surface of the foreign matter removing portion of the door rail cleaning device contacts the upper surface of the door rail and the tip of the lower surface projects outward from one end of the door rail, A fixing step of fixing the hanger fixing portion to the hanger;
After the fixing step, a moving step of moving the door in the opening direction to the fully opened state, the door rail cleaning method. An elevator comprising the door rail cleaning device according to claim 1. The fully open state of the door, wherein a part of the lower surface of the foreign matter removing portion of the door rail cleaning device contacts the upper surface of the door rail, and the tip of the lower surface projects outward from one end of the door rail. Elevator described.

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