Guide rail oil supply device for elevator

Abstract

To easily adjust the amount of lubricating oil applied to a guide rail.SOLUTION: A guide rail oil supply device 1 for an elevator, which moves along a guide rail 2 and applies lubricating oil 10 to the guide rail 2, comprises: a container 20 that stores the lubricating oil 10; an application member 30 that is disposed in contact with the guide rail 2 and that applies the lubricating oil 10 to the guide rail 2; a suction member 40 that is dipped at one end in the lubricating oil 10 in the container 20 and fixed at the other end to the application member 30 and that supplies the lubricating oil 10 to the application member 30; and a height adjustment mechanism 50 for adjusting the heights of the application member 30 and the suction member 40 relative to the container 20.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to an oil supply device for an elevator guide rail. [Background technology]

[0002] Generally, elevator cars or counterweights are provided with guide shoes that engage with guide rails to move up and down, and lubricating oil is applied to the guide rails to ensure smooth sliding of the guide shoes.

[0003] An example of a device for applying lubricating oil to a guide rail is an oiling device for a guide rail disclosed in Patent Document 1. The oiling device for a guide rail in Patent Document 1 includes a container for storing lubricating oil, an applicator made of fibers such as felt, and wool that draws the lubricating oil up to the applicator by capillary action. As a lifting body such as a car moves, the applicator moves up and down while abutting against the guide surface of the guide rail, thereby applying the lubricating oil to the guide rail.

[0004] Also, Patent Document 2 discloses a guide rail oil supply device that uses capillary action to suck up lubricating oil to an application member, similar to Patent Document 1. The suction member, such as wool, used in the guide rail oil supply device of Patent Document 2 includes two plates that sandwich the suction member, and a compression spring that presses the plates and tightens the suction member. The amount of lubricating oil can be adjusted by adjusting the amount of tightening of the suction member with the compression spring. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 8-282943 [Patent Document 2] JP 2000-136077 A Summary of the Invention [Problem to be solved by the invention]

[0006] In elevator guide rail oiling devices, it is important to adjust the amount of lubricating oil applied to the guide rail. If too much lubricating oil is applied to the guide rail, the lubricating oil may solidify on the surface of the guide rail, causing increased vibration when the car ascends or descends. On the other hand, if too little lubricating oil is applied to the guide rail, vibration may increase when the car ascends or descends, or the life of parts in contact with the guide rail may be shortened.

[0007] The guide rail oiling device disclosed in Patent Document 1 does not have a mechanism for adjusting the amount of lubricating oil applied to the guide rail. In addition, the guide rail oiling device disclosed in Patent Document 2 adjusts the amount of lubricating oil by adjusting the amount of tightening of the suction member as described above. Therefore, the suction member may not return to its original shape even after being released from the compressed state. As a result, the accuracy of adjusting the amount of lubricating oil applied to the guide rail may decrease. [Means for solving the problem]

[0008] One aspect of the present invention is an oiling device for guide rails that moves along the guide rail and applies lubricating oil to the guide rail, and is characterized by comprising a container for storing lubricating oil, an applicator member that is arranged in contact with the guide rail and applies lubricating oil to the guide rail, a suction member having one end immersed in the lubricating oil in the container and the other end fixed to the applicator member and supplying the lubricating oil to the applicator member, and a height adjustment mechanism that adjusts the relative heights of the applicator member and the suction member with respect to the container.

[0009] According to the above configuration, the height of one end of the suction member immersed in the lubricating oil in the container can be changed by the height adjustment mechanism. Here, the amount of lubricating oil supplied to the applicator by the suction member is largely dependent on the positional relationship between the lubricating oil level in the container and the suction member. Therefore, by changing the height of the suction member, the amount of lubricating oil supplied from the suction member to the applicator can be easily adjusted. As a result, the amount of lubricating oil applied to the guide rail via the applicator can be easily adjusted.

[0010] In the oil supply device for a guide rail according to one aspect of the present invention, the height adjustment mechanism may include a rack gear extending in the height direction, and a pinion gear meshing with the rack gear.

[0011] According to the above configuration, the accuracy of adjusting the height of the applying member and the suction member can be improved.

[0012] In addition, in an oil supply device for guide rails which is one aspect of the present invention, the container may be provided with a scale indicating the amount of lubricating oil, and at least one of the application member and the height adjustment mechanism may be provided with a mark indicating the position of the application member which corresponds to the scale indicating the amount of lubricating oil.

[0013] According to the above configuration, during elevator maintenance work, etc., workers can easily adjust the application member to an appropriate position depending on the amount of lubricating oil. Effect of the Invention

[0014] According to the guide rail oil supply device of one aspect of the present invention, the amount of lubricating oil applied to the guide rail can be easily adjusted. [Brief description of the drawings]

[0015] [Figure 1] 1 is a perspective view showing an appearance of an oil supply device for a guide rail according to an embodiment; [Diagram 2] 1 is a perspective view showing the appearance of a container body constituting an oil supply device for a guide rail according to an embodiment of the present invention; [Diagram 3] 1 is a cross-sectional view of an oil supply device for a guide rail according to an embodiment of the present invention, taken in a front-rear direction. [Figure 4] 4 is a cross-sectional view in the front-rear direction of an oil supply device for a guide rail, which is another example of an embodiment. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] Hereinafter, an example of an embodiment of the oil supply device for a guide rail according to the present invention will be described in detail with reference to the drawings. Note that the scope of the present invention includes configurations obtained by selectively combining the respective components of the multiple embodiments and modified examples described below.

[0017] An oil supply device 1 for guide rails, which is one example of an embodiment, will be described in detail with reference to Figures 1 to 4. Figure 1 is a perspective view of the oil supply device 1 for guide rails.

[0018] For ease of explanation, this specification uses terms indicating the front-rear direction X, the left-right direction Y, and the up-down direction Z shown in FIG. 1. These directions refer to the directions when the oil supply device for guide rail 1 is in use. More specifically, the front of the oil supply device for guide rail 1 is the side where the oil supply device for guide rail 1 and the guide rail 2 come into contact. The left-right direction Y is a direction perpendicular to the front-rear direction X and the up-down direction Z. The up-down direction Z is the movement direction of the oil supply device for guide rail 1, and coincides with the extension direction of the guide rail 2.

[0019] As shown in Fig. 1, the guide rail oil supply device 1 includes a container 20 that stores lubricating oil 10, an application member 30 that applies the lubricating oil 10 to the guide rail 2, and a suction member 40 (see Fig. 3) that supplies the lubricating oil 10 in the container 20 to the application member 30. The application member 30 is disposed so as to come into contact with the guide rail 2, and is clamped by a recess 25 (see Fig. 2) provided in the container 20. The suction member 40 sucks up the lubricating oil 10 in the container 20 by capillary action, and supplies the sucked up lubricating oil 10 to the application member 30.

[0020] The guide rail oil supply device 1 is attached to, for example, a guide shoe (not shown) provided on a car, and moves in the vertical direction Z in accordance with the movement of the car. As a result, when the car moves and the guide rail oil supply device 1 moves in the vertical direction Z, the applicator 30 comes into contact with the guide rail 2, and the lubricating oil 10 soaked in the applicator 30 is applied to the surface of the guide rail 2.

[0021] The guide rail oil supply device 1 further includes a height adjustment mechanism 50 for adjusting the relative heights of the application member 30 and the suction member 40 with respect to the container 20. As will be described in detail later, when the application member 30 moves in the vertical direction Z with respect to the container 20 by the height adjustment mechanism 50, the upper end 41 (see FIG. 3) of the suction member 40, which supplies the lubricating oil 10 to the application member 30, moves in the vertical direction Z in conjunction with the movement of the application member 30. Here, the amount of the lubricating oil 10 supplied to the application member 30 by the suction member 40 is greatly affected by the positional relationship between the liquid level of the lubricating oil 10 in the container 20 and the upper end 41 of the suction member 40. Therefore, by changing the position of the upper end 41 of the suction member 40 with respect to the height of the liquid level of the lubricating oil 10 in the container 20 by the height adjustment mechanism 50, the amount of the lubricating oil 10 supplied to the application member 30 by the suction member 40 can be adjusted.

[0022] Hereinafter, each component of the oil supply device for guide rails 1 will be described in detail with reference to Figures 1 to 3 as appropriate. Figure 2 is a perspective view of a container body 21 constituting the container 20, and Figure 3 is a cross-sectional view of the oil supply device for guide rails 1 in the front-rear direction.

[0023] [container] As shown in Fig. 1 and Fig. 2, the container 20 has a container body 21 and a lid body 22. The container 20 is made of a transparent or translucent resin, and contains the lubricating oil 10. Examples of the resin that constitutes the container 20 include PET (polyethylene terephthalate), PP (polypropylene), and PE (polyethylene). The container body 21 and the lid body 22 may be made of the same material, or may be made of different materials. The lid body 22 may be opaque.

[0024] As shown in FIG. 1, a plurality of protrusions 23 functioning as scales indicating the amount of lubricating oil 10 are provided on the side surface of the container body 21 in the left-right direction Y. Although details will be described later, during elevator maintenance work, etc., an operator adjusts the height of the application member 30 based on the position of the scale at which the liquid level of the lubricating oil 10 is located. Note that the scale indicating the amount of lubricating oil 10 is not limited to this, and may be composed of, for example, a tape or the like provided on the side surface of the container body 21. In addition, a through hole 24 (see FIG. 2) through which a shaft body 53 constituting a height adjustment mechanism 50 described later penetrates is provided on the side surface of the container body 21 in the left-right direction Y.

[0025] 2, the container body 21 has a recess 25 into which the application member 30 is inserted. In this embodiment, the recess 25 is provided across the top-bottom direction Z of the container body 21. The depth (front-to-back length) of the recess 25 can be appropriately changed depending on the shapes of the guide rail 2 and the application member 30. The depth of the recess 25 is, for example, 10% or more and 50% or less of the front-to-back length of the container body 21.

[0026] A gap 26 is provided in a part of the upper region of the recess 25. When the height adjustment mechanism 50 moves the application member 30 in the up-down direction Z relative to the container 20, the suction member 40 and the rack gear 51 constituting the height adjustment mechanism 50 pass through the gap 26. The size and shape of the gap 26 can be appropriately changed depending on the size, shape, etc. of the suction member 40 and the rack gear 51. In addition, the gap 26 may be provided with a cover or the like that prevents the lubricating oil 10 from leaking from the container body 21.

[0027] 1, the lid body 22 is provided with a recess 27 that is U-shaped when viewed from above. In addition to the application member 30, a rack gear 51 and a pinion gear 52 that constitute the height adjustment mechanism 50 pass through the gap formed by the recess 27. Therefore, the depth (length in the front-rear direction) of the recess 27 provided in the lid body 22 is greater than the depth of the recess 25 provided in the container body 21.

[0028] [Coating material] 1 and 3, the application member 30 has an oil supply member 31 and a plate member 32 provided behind the oil supply member 31. In this embodiment, the plate member 32 is fixed to an upper region of the rear surface of the oil supply member 31 by a fastener such as a clip (not shown).

[0029] As described above, the oil supply member 31 is clamped in the recess 25 of the container body 21. A metal plate (not shown) may be interposed between the oil supply member 31 and the container body 21. When a metal plate is interposed between the oil supply member 31 and the container body 21, the contact pressure of the oil supply member 31 with the guide rail 2 may be changed by changing the amount of bending of the metal plate. An upper end 41 of a suction member 40 is fixed to a lower region of the rear surface of the oil supply member 31, and the lubricating oil 10 sucked up by the suction member 40 is supplied.

[0030] The oil supply member 31 has a function of sandwiching the guide rail 2 and applying the lubricating oil 10 to the surface of the guide rail 2. As described above, the amount of the lubricating oil 10 applied from the oil supply member 31 to the surface of the guide rail 2 can be adjusted by raising and lowering the application member 30 with the height adjustment mechanism 50. In addition, the oil supply member 31 has a function of wiping off dirt such as dust and dirt that adheres to the surface of the guide rail 2 while the car is moving.

[0031] The oil supply member 31 is made of a material having high oil absorption properties, for example, kapok material.

[0032] As described above, the plate material 32 is fixed to the oil supply member 31 by a fastener (not shown) such as a clip. In addition, the rack gear 51 constituting the height adjustment mechanism 50 described below is fixed to the plate material 32. In other words, the rack gear 51 constituting the height adjustment mechanism 50 is fixed to the oil supply member 31 via the plate material 32. Note that the method of fixing the oil supply member 31 and the rack gear 51 is not limited to this. For example, the oil supply member 31 and the rack gear 51 may be directly fixed to each other using a fastener or the like, without using the plate material 32.

[0033] The plate material 32 is provided with a plurality of tapes 33 as markers indicating the appropriate position of the applicator 30 according to the amount of the lubricant 10. During elevator maintenance work, an operator checks the amount of the lubricant 10 from the scale provided on the container body 21. Then, the position of the applicator 30 is moved by the height adjustment mechanism 50 so that the position of the applicator 30 is the position of the tape 33 corresponding to the amount of the lubricant 10. By providing the plate material 32 with markers indicating the appropriate position of the applicator 30 according to the amount of the lubricant 10, it becomes easier for an operator to adjust the position of the applicator 30. Note that the tape 33 may have a mark or the like corresponding to the scale provided on the container body 21.

[0034] [Suction material] 3, the suction member 40 has an upper end 41 fixed to the oil supply member 31 and a lower end 42 hanging down toward the bottom side of the container body 21. The suction member 40 is made of, for example, a fiber bundle such as cotton. The suction member 40 may be made of one fiber bundle or may be made of multiple fiber bundles. As described above, the suction member 40 sucks up the lubricating oil 10 inside the container 20 by capillary action and supplies it to the oil supply member 31.

[0035] The thickness of the fiber bundle constituting the suction member 40 can be appropriately changed depending on the amount of lubricating oil 10 that needs to be applied to the guide rail 2. When the fiber bundle constituting the suction member 40 is made thicker, the amount of lubricating oil 10 applied to the guide rail 2 increases.

[0036] As described above, the lower end 42 of the suction member 40 is immersed in the lubricating oil 10 in the container 20, and the upper end 41 is fixed to the oil supply member 31 constituting the application member 30. The heights of the upper end 41 and the lower end 42 move in conjunction with the height of the application member 30. In other words, the lower end 42 does not contact the bottom surface of the container body 21 except when the application member 30 is located at the lowest position.

[0037] The amount of lubricating oil 10 supplied to the applicator 30 by the suction member 40 depends greatly on the positional relationship between the level of the lubricating oil 10 in the container 20 and the upper end 41 of the suction member 40. For example, when the amount of lubricating oil 10 is small and the level is low, if the upper end 41 of the suction member 40 is in a high position, the amount of lubricating oil 10 supplied from the suction member 40 to the applicator 30 will be small. As a result, the amount of lubricating oil 10 applied to the guide rail 2 may be too small. On the other hand, when the lubricating oil 10 is refilled into the container 20, etc., and the level is high, if the upper end 41 of the suction member 40 is in a low position, the amount of lubricating oil 10 supplied from the suction member 40 to the applicator 30 will be too large. As a result, the amount of lubricating oil 10 applied to the guide rail 2 may be too large. In other words, by keeping the difference between the liquid level of the lubricating oil 10 and the height of the upper end 41 of the suction member 40 within a predetermined range, an appropriate amount of lubricating oil 10 can be supplied from the suction member 40 to the application member 30.

[0038] The method of fixing the upper end 41 of the suction member 40 to the oil supply member 31 is not particularly limited as long as the height of the suction member 40 can move in the up-down direction Z in conjunction with the height of the application member 30. For example, the upper end 41 of the suction member 40 and the oil supply member 31 may be fixed by a fastener such as a clip. Also, for example, the upper end 41 of the suction member 40 may be inserted inside the kapok material constituting the oil supply member 31, thereby fixing the suction member 40 to the oil supply member 31.

[0039] [Height adjustment mechanism] In this embodiment, the height adjustment mechanism 50 is a rack-and-pinion mechanism. More specifically, the height adjustment mechanism 50 includes a rack gear 51 extending in the height direction and a pinion gear 52 meshing with the rack gear 51. By using the rack-and-pinion mechanism for the height adjustment mechanism 50, the accuracy of the height adjustment of the application member 30 can be improved.

[0040] As described above, the rack gear 51 is fixed to the plate material 32 constituting the application member 30. The shaft body 53 is inserted into the pinion gear 52. The shaft body 53 passes through a through hole 24 (see FIG. 2) provided in the container body 21 in the left-right direction Y. An operating portion (not shown) is provided at one end of the shaft body 53, and the pinion gear 52 and the shaft body 53 rotate integrally when the operating portion rotates. As a result, the rack gear 51 meshing with the pinion gear 52 moves in the up-down direction Z.

[0041] The material of the rack gear 51 and the pinion gear 52 is not particularly limited, and may be made of metal or resin.

[0042] Stopper members for stopping the rotation of the pinion gear 52 may be provided at the upper and lower ends of the rack gear 51. By providing the stopper members, it is possible to prevent the pinion gear 52 from coming off the rack gear 51.

[0043] As described above, according to the guide rail oil supply device 1 having the above-mentioned configuration, the height of the upper end 41 of the suction member 40 can be changed by the height adjustment mechanism 50. This makes it easy to change the height of the upper end 41 of the suction member 40 in accordance with the liquid level of the lubricating oil 10. As a result, the amount of lubricating oil 10 applied from the applicator 30 to the guide rail 2 can be easily adjusted.

[0044] It should be noted that the present invention is not limited to the above-described embodiment and its modified examples, and various changes and modifications are possible within the scope of the claims of this application.

[0045] In the above embodiment, the height adjustment mechanism 50 is configured by a rack and pinion mechanism, but is not limited thereto. FIG. 4 is a cross-sectional view in the front-rear direction of a guide rail oil supply device 1X, which is another example of the embodiment. As shown in FIG. 4, the height adjustment mechanism 50 may be configured by a first member 54 fixed to the plate material 32 constituting the application member 30 and having a plurality of recesses 55, and a second member 56 fixed to the container 20 and having a plurality of protrusions 57 that fit into the recesses 55 provided on the first member 54. The application member 30 is fixed to the container 20 by fitting the protrusions 57 into the recesses 55. The height of the application member 30 with respect to the container 20 can be changed by manually changing the position where the protrusions 57 fit.

[0046] In the above embodiment, the tape 33 is provided on the plate 32 as a marker indicating an appropriate position of the applicator 30 according to the amount of lubricating oil 10, but the present invention is not limited to this. For example, the tape 33 may be provided on the rack gear 51 constituting the height adjustment mechanism 50.

[0047] In the above embodiment, the container body 21 and the lid 22 are configured separately in the container 20, but the container body 21 and the lid 22 may be configured as one unit. In that case, for example, an opening for refilling the lubricating oil 10 may be provided on the upper surface of the container 20. [Explanation of symbols]

[0048] 1,1X Guide rail oil supply device, 2 Guide rail, 10 Lubricating oil, 20 Container, 21 Container body, 22 Lid, 23 Convex portion (scale), 24 Through hole, 25 Concave portion, 26 Gap, 27 Concave portion, 30 Spraying member, 31 Oil supply member, 32 Plate material, 33 Tape (marker), 40 Suction member, 41 Upper end, 42 Lower end, 50 Height adjustment mechanism, 51 Rack gear, 52 Pinion gear, 53 Shaft body, 54 First member, 55 Concave portion, 56 Second member, 57 Convex portion

Claims

1. An elevator guide rail oiling device that moves along a guide rail and applies lubricating oil to the guide rail, A container for containing the lubricating oil; an application member arranged to contact the guide rail and applying the lubricant to the guide rail; a suction member having one end immersed in the lubricating oil in the container and the other end fixed to the applicator, for supplying the lubricating oil to the applicator; a height adjustment mechanism that adjusts the relative heights of the application member and the suction member with respect to the container; An elevator guide rail oiling device comprising:

2. The height adjustment mechanism includes: A rack gear extending in a height direction; a pinion gear meshing with the rack gear; 2. The elevator guide rail oil supply device according to claim 1, comprising:

3. The container is provided with a scale indicating the amount of the lubricating oil, 2. The oil supply device for elevator guide rails as described in claim 1, wherein at least one of the applicator and the height adjustment mechanism is provided with a mark indicating the position of the applicator corresponding to the scale indicating the amount of liquid.

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