CA2115956A1 - Sheave cleaning tool - Google Patents
Sheave cleaning toolInfo
- Publication number
- CA2115956A1 CA2115956A1 CA 2115956 CA2115956A CA2115956A1 CA 2115956 A1 CA2115956 A1 CA 2115956A1 CA 2115956 CA2115956 CA 2115956 CA 2115956 A CA2115956 A CA 2115956A CA 2115956 A1 CA2115956 A1 CA 2115956A1
- Authority
- CA
- Canada
- Prior art keywords
- blade
- sheave
- plate
- hinge
- mounting plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/12—Checking, lubricating, or cleaning means for ropes, cables or guides
- B66B7/1276—Cleaning means
Landscapes
- Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
Abstract
My device relates to a device to clean sheaves, such as those used in the operation of elevators. A particular application of my device is as a sheave cleaning tool.
The present invention, the sheave cleaning tool, comprises of a mounting plate and a blade plate attached by a hinge. A handle is welded to the blade plate to enable the the operator to raise and lower the blade, altering the level of pressure of the blade, applied to the sheave, without the operator having any contact with the blade or sheave. When this pressure is applied, the blade is lowered into the groove of the sheave, cutting and scraping away hardened rope tar that has been packed into the grooves of the sheave which guide the cables around the sheave. The blade itself is cylindrical and cut on an angle to form a point which fits into the grooves of the sheave. A cloth attachment may be fitted over the blade to apply cleaning solutions after the device has been used to remove hardened rope tar from the grooves of the sheave.
The present invention has three safety features which may be added. The first safety feature consists of a threaded rod which is attached to the adjustable mounting plate, runs through the blade plate and is bolted on the underside of the blade plate. The second safety feature consists of a spring-back mechanism which automatically retracts the blade when not in operation. The third safety feature may be added to the design of the blade itself. The blade may be designed to pivot and lock to ensure the retraction of the blade during reverse movement of the sheave.
The present invention, the sheave cleaning tool, comprises of a mounting plate and a blade plate attached by a hinge. A handle is welded to the blade plate to enable the the operator to raise and lower the blade, altering the level of pressure of the blade, applied to the sheave, without the operator having any contact with the blade or sheave. When this pressure is applied, the blade is lowered into the groove of the sheave, cutting and scraping away hardened rope tar that has been packed into the grooves of the sheave which guide the cables around the sheave. The blade itself is cylindrical and cut on an angle to form a point which fits into the grooves of the sheave. A cloth attachment may be fitted over the blade to apply cleaning solutions after the device has been used to remove hardened rope tar from the grooves of the sheave.
The present invention has three safety features which may be added. The first safety feature consists of a threaded rod which is attached to the adjustable mounting plate, runs through the blade plate and is bolted on the underside of the blade plate. The second safety feature consists of a spring-back mechanism which automatically retracts the blade when not in operation. The third safety feature may be added to the design of the blade itself. The blade may be designed to pivot and lock to ensure the retraction of the blade during reverse movement of the sheave.
Description
-~yl;. C~;hA~ G TOO~, SPECIFICATIONS
The present invention relates to a sheave cleaning tool for cl~ning the grooves in a sheave (sheave is a term used in reference to a pulley). Although used for a variety of purposes, as there is no other known device of this nature we shall refer to this device as a sheave cleaner. The sheave deaner may primarily be used in the cleaning of the sheave of an elevator and similar sheave devices.
Sheave cleaners and other specific tools for cleaning sheaves, such as those used in elevators, to clean the sheave that holds compencqtin~ cables in plaoe, are not known, but 10 typically a sharpened pipe or other in~LI~lment may be used as a scra~ device. ~hese types have the disadvantages of being dangerous and difficult to utilize and susceptible to breakage during use.
One method of clear~ing sheaves is to insert and hold a sharpened pipe in the sheave, SGI~ the debris from the sheave while the sheave turns. Another method is to stop the sheave and pick out the debris. This process is very time con~ ing and it is liffi.~lllt to remove the rope tar in this manner as it hardens. After this process is completed, one applies rle~ning solution to a cloth and holds the cloth in the grooves of the sheave while the sheave is tnrning. Such methods and devices have several disadvantages. While they permit the cleaning of the sheave, they are difficult to hold in place, require a great deal 20 of strength and effort and are dangerous to the labourer as they can injure themselves or 2~ ~5956 damage the sheave itself. For example, the pipe can slip or jam in the cables, which endangers the labourer or potentially damages the equipment cansing expensive repairs. For example, this invention was lesi~d for a labourer who lost his finger while he was holding a cloth in the groove of the sheave when the cloth was caught in the cables and pulled his hand into the mech~ni~m It is desirable to have a sheave cleaning tool to clean sheaves which is independant of any oontact from the labourer during the cleaning operation. The present sheave rle~ning tool relates to the safer and easier ~ le~ning of sheaves.
The present invention consists of a tool for cleaning sheaves. In one aspect of the 10 invention, the sheave cl~ning tool complises of a mounting plate and a blade plate attached on a hinge. A handle is welded to the blade plate to enable the manual retraction of the blade during reverse operation of the sheave. This also enables the operator to raise and lower the blade into the grooves of the sheave, while the sheave is tllrnin~. The operator can alter the level of ~lGs~ure of the blade, applied to the sheave, without the operator having any contact with the blade or the sheave. The blade then easib scrapes the build up of debris from the grooves of the sheave.
The adjustable mounting plate is bolted to the upper casing of the sheave housing, above the sheave, and can be adjusted foreward and back as there are t~vo oval slots cut into each side of the adjustable mounting plate.
~1~5956 The blade plate is bent back horizontally, on the lower end of the blade plate where the blade is bolted. The lower end of the blade plate is drilled with a series of threaded blade adjustment holes or can be cut with one or two horizontal sbts parallel to the fold, where the mounting screws will bolt the blade to the blade plate, allowing for horizontal adjustments in the position of the blade.
The blade is removable and is bolted onto the blade plate at a downward vertical angle in the horizontal series of threaded blade adjustment holes, drilled into the lower end of the blade plate. The blade is cylindrical and cut diagonally on one end to form a point which is shaped to fit into the grooves of the sheave. The blade should be made of steel or 10 any other metal with the same properties, res;~ing bending or breakage under pressure.
The cloth ~t~;~hmP~t may be fitted over the blade for application of cleaning solutions, after the rope tar has been cleaned from the sheave. The cloth ~tt~rhment may be made of cotton, wool, sponge, or any other material having liquid retention properties and able to withstand friction.
Three safety features may be added to the device. The first is a stopper or bcking mechanism which restricts the distanoe of the lowering of the blade when the devioe is in operation. This locking mechanism consists of a threaded rod which is attached to the adjustable mounting plate, runs through a slot cut into the blade plate, and is bolted on the undeside of the blade plate.
2;~ 56 -The second safety feature which may be added to the device consists of a spring-back mech~ni~m which is placed on the inside of the device which automatically retracts or closes the device, disengaging the blade from the sheave, when pressure is not manually asserted by the operator by manipulation of the handle.
The third safety feature may be in the design of the blade itself. The blade can be designed to pivot foIward and disengage when the sheave changes direction to reverse. The blade will also pivot back and lock as pressure is applied l~y the forward motion of the sheave, during the cleaning operation of the sheave.
Aside from the cloth ~tt~hment, the devioe may be made of steel or any other metal 10 holding the same pro~llies which prohibits bending or breakage under pressure.
The invention, as exemplified by a preferred embodiment, is described with reference to the drawings in which:
Figure 1 is a ~i~tive view of an embodiment of a sheave cle-~ning tool of the invention; and Figure 2 is reverse view of the sheaYe cleaning tool shown in Figure 1; and Figure 3 is a side view of the sheave cleaning tool shown in Figure 1; and Figure 4 is a sequential view of the sheave cleaning tool shown in Figure 3.
-- 211595~
Referling to the draqvings, the embodiment of ~he invelltion shown, ~ shea~e cle~ning toQ! 1 cnmprise-s an adj-l~tablç mounting plate 2, 2 bl~lç plate 3j a bladç ~, a handle 11, a hinge ~, bla~ mounting bol~s lQ, llppçr and lower hingç bolt~ 5, 7, and mounting slots 4, and threaded blade adiustment boles 8. As may be seen in Figure 1, the adjustable mounting plate and the blade plate are attached t~y a hinge 7, and bolted 5, 7, to each plate and the blade 9 is bolted to the blade plate in the series o~ threaded blade adjustment boles or slots 8.
rne slots 4, where ~le ~olts are used for mount~g the ~evïoe n the sh~ve housing, are ~ the ~djustable mounting pl~te, and allow for the foreward *nd back a~ustment of the 10 device.
The handle 1~, is attached to the blade plate ~ and runs horizontaLy and th~n vçrtically, protrllding from the side of the shçaYe cle~ning tQol Referring to the photographs, the embodiment of the invention shown. the prototvpe of the sheave cleaning tool is shown, in reverse side view, mounted in the sheave housin~, disengaged in E~ibit A, Figure 1 and engaged in operation in Fxhibit A, Figure 2. Exhibit B, Figure 1 shows a compen~?~ting sheave mech~ni~m E~hibit B, Figure 2 shows a close-up where the ~heàve cle~ning tool shotlld be m~unte~ in the sheàve mé.~ ~ni~Tn ~see Fxhihi B, Ii'igure ~). Exhibit C, rigure 1 shows the reverse angle of ~hibit A, rigure 2. E~hibit C, Figurc 2 shows a side perspectiYe ~iew of the prototypc of thc shca~ clcaning tool.
`~ ~11$95~
A feature of this invention is the ability to attach, remove and adjust the sheave cleaning tool to accommodate to a variety of sheaves. The removable blade is easily repla~d or removed aocording to specific needs.
Although only a single embodiment of the present invention has been described and illustrated, the present invention is not limited to the features of this embodiment, but includes all variations and modifications within the scope of the claims.
The present invention relates to a sheave cleaning tool for cl~ning the grooves in a sheave (sheave is a term used in reference to a pulley). Although used for a variety of purposes, as there is no other known device of this nature we shall refer to this device as a sheave cleaner. The sheave deaner may primarily be used in the cleaning of the sheave of an elevator and similar sheave devices.
Sheave cleaners and other specific tools for cleaning sheaves, such as those used in elevators, to clean the sheave that holds compencqtin~ cables in plaoe, are not known, but 10 typically a sharpened pipe or other in~LI~lment may be used as a scra~ device. ~hese types have the disadvantages of being dangerous and difficult to utilize and susceptible to breakage during use.
One method of clear~ing sheaves is to insert and hold a sharpened pipe in the sheave, SGI~ the debris from the sheave while the sheave turns. Another method is to stop the sheave and pick out the debris. This process is very time con~ ing and it is liffi.~lllt to remove the rope tar in this manner as it hardens. After this process is completed, one applies rle~ning solution to a cloth and holds the cloth in the grooves of the sheave while the sheave is tnrning. Such methods and devices have several disadvantages. While they permit the cleaning of the sheave, they are difficult to hold in place, require a great deal 20 of strength and effort and are dangerous to the labourer as they can injure themselves or 2~ ~5956 damage the sheave itself. For example, the pipe can slip or jam in the cables, which endangers the labourer or potentially damages the equipment cansing expensive repairs. For example, this invention was lesi~d for a labourer who lost his finger while he was holding a cloth in the groove of the sheave when the cloth was caught in the cables and pulled his hand into the mech~ni~m It is desirable to have a sheave cleaning tool to clean sheaves which is independant of any oontact from the labourer during the cleaning operation. The present sheave rle~ning tool relates to the safer and easier ~ le~ning of sheaves.
The present invention consists of a tool for cleaning sheaves. In one aspect of the 10 invention, the sheave cl~ning tool complises of a mounting plate and a blade plate attached on a hinge. A handle is welded to the blade plate to enable the manual retraction of the blade during reverse operation of the sheave. This also enables the operator to raise and lower the blade into the grooves of the sheave, while the sheave is tllrnin~. The operator can alter the level of ~lGs~ure of the blade, applied to the sheave, without the operator having any contact with the blade or the sheave. The blade then easib scrapes the build up of debris from the grooves of the sheave.
The adjustable mounting plate is bolted to the upper casing of the sheave housing, above the sheave, and can be adjusted foreward and back as there are t~vo oval slots cut into each side of the adjustable mounting plate.
~1~5956 The blade plate is bent back horizontally, on the lower end of the blade plate where the blade is bolted. The lower end of the blade plate is drilled with a series of threaded blade adjustment holes or can be cut with one or two horizontal sbts parallel to the fold, where the mounting screws will bolt the blade to the blade plate, allowing for horizontal adjustments in the position of the blade.
The blade is removable and is bolted onto the blade plate at a downward vertical angle in the horizontal series of threaded blade adjustment holes, drilled into the lower end of the blade plate. The blade is cylindrical and cut diagonally on one end to form a point which is shaped to fit into the grooves of the sheave. The blade should be made of steel or 10 any other metal with the same properties, res;~ing bending or breakage under pressure.
The cloth ~t~;~hmP~t may be fitted over the blade for application of cleaning solutions, after the rope tar has been cleaned from the sheave. The cloth ~tt~rhment may be made of cotton, wool, sponge, or any other material having liquid retention properties and able to withstand friction.
Three safety features may be added to the device. The first is a stopper or bcking mechanism which restricts the distanoe of the lowering of the blade when the devioe is in operation. This locking mechanism consists of a threaded rod which is attached to the adjustable mounting plate, runs through a slot cut into the blade plate, and is bolted on the undeside of the blade plate.
2;~ 56 -The second safety feature which may be added to the device consists of a spring-back mech~ni~m which is placed on the inside of the device which automatically retracts or closes the device, disengaging the blade from the sheave, when pressure is not manually asserted by the operator by manipulation of the handle.
The third safety feature may be in the design of the blade itself. The blade can be designed to pivot foIward and disengage when the sheave changes direction to reverse. The blade will also pivot back and lock as pressure is applied l~y the forward motion of the sheave, during the cleaning operation of the sheave.
Aside from the cloth ~tt~hment, the devioe may be made of steel or any other metal 10 holding the same pro~llies which prohibits bending or breakage under pressure.
The invention, as exemplified by a preferred embodiment, is described with reference to the drawings in which:
Figure 1 is a ~i~tive view of an embodiment of a sheave cle-~ning tool of the invention; and Figure 2 is reverse view of the sheaYe cleaning tool shown in Figure 1; and Figure 3 is a side view of the sheave cleaning tool shown in Figure 1; and Figure 4 is a sequential view of the sheave cleaning tool shown in Figure 3.
-- 211595~
Referling to the draqvings, the embodiment of ~he invelltion shown, ~ shea~e cle~ning toQ! 1 cnmprise-s an adj-l~tablç mounting plate 2, 2 bl~lç plate 3j a bladç ~, a handle 11, a hinge ~, bla~ mounting bol~s lQ, llppçr and lower hingç bolt~ 5, 7, and mounting slots 4, and threaded blade adiustment boles 8. As may be seen in Figure 1, the adjustable mounting plate and the blade plate are attached t~y a hinge 7, and bolted 5, 7, to each plate and the blade 9 is bolted to the blade plate in the series o~ threaded blade adjustment boles or slots 8.
rne slots 4, where ~le ~olts are used for mount~g the ~evïoe n the sh~ve housing, are ~ the ~djustable mounting pl~te, and allow for the foreward *nd back a~ustment of the 10 device.
The handle 1~, is attached to the blade plate ~ and runs horizontaLy and th~n vçrtically, protrllding from the side of the shçaYe cle~ning tQol Referring to the photographs, the embodiment of the invention shown. the prototvpe of the sheave cleaning tool is shown, in reverse side view, mounted in the sheave housin~, disengaged in E~ibit A, Figure 1 and engaged in operation in Fxhibit A, Figure 2. Exhibit B, Figure 1 shows a compen~?~ting sheave mech~ni~m E~hibit B, Figure 2 shows a close-up where the ~heàve cle~ning tool shotlld be m~unte~ in the sheàve mé.~ ~ni~Tn ~see Fxhihi B, Ii'igure ~). Exhibit C, rigure 1 shows the reverse angle of ~hibit A, rigure 2. E~hibit C, Figurc 2 shows a side perspectiYe ~iew of the prototypc of thc shca~ clcaning tool.
`~ ~11$95~
A feature of this invention is the ability to attach, remove and adjust the sheave cleaning tool to accommodate to a variety of sheaves. The removable blade is easily repla~d or removed aocording to specific needs.
Although only a single embodiment of the present invention has been described and illustrated, the present invention is not limited to the features of this embodiment, but includes all variations and modifications within the scope of the claims.
Claims (11)
1. A device for cleaning sheaves, comprising:
an adjustable mounting plate; and a blade plate; and a hinge; and hinge bolts; and blade mounting bolts; and an adjustable blade; and a removable cloth attachment which is placed over the blade; and a handle which is welded to the blade plate; and a series of threaded blade adjustment holes or horizontal slots; and two mounting slots.
an adjustable mounting plate; and a blade plate; and a hinge; and hinge bolts; and blade mounting bolts; and an adjustable blade; and a removable cloth attachment which is placed over the blade; and a handle which is welded to the blade plate; and a series of threaded blade adjustment holes or horizontal slots; and two mounting slots.
2. A device as claimed in 1, wherein the adjustable mounting plate and the blade plate are attached by a hinge and may or may not have a locking device or a stopper to restrict the lowering and retraction of the blade.
3. A device as claimed in 1, wherein two oval slots are cut into the adjustable mounting plate enable the bolting of the device to the sheave housing.
4. A device as claimed in 1, wherein the lower mounting plate is bent back horizontally on an angle and a series of threaded blade adjustment holes or a horizontal slot is cut into the lower end of the blade plate.
5. A device as claimed in 1, wherein the the adjustable mounting plate and the blade plate are attached by a hinge, utilizing hinge bolts.
6. A device as claimed in 1, wherein the cloth attachment is shaped and fitted to the blade and fits over the blade.
7. A device as claimed in 1, wherein an arm is welded to the blade plate and protruding from the side of the device.
8. A device as claimed in 1, wherein the blade is bolted into one of a series of threaded blade adjustment slots or a horizontal slot in the blade plate and may be adjusted horizontally.
9. A device as claimed in 1, wherein the blade is cylindrical and cut on an angle and shaped to a point matching the width of the grooves of the sheave.
10. A device as claimed in 1, wherein the blade can be designed to pivot up and down to allow the blade to be retracted in the reverse operation of the sheave.
11. A device for cleaning sheaves, comprising:
an adjustable mounting plate, a blade plate, a hinge, a handle, a blade, a clothattachment, mounting bolts, hinge bolts, two mounting slots and one blade mounting slot or a series of threaded blade adjustment slots drilled into the blade plate.
an adjustable mounting plate, a blade plate, a hinge, a handle, a blade, a clothattachment, mounting bolts, hinge bolts, two mounting slots and one blade mounting slot or a series of threaded blade adjustment slots drilled into the blade plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2115956 CA2115956A1 (en) | 1994-02-18 | 1994-02-18 | Sheave cleaning tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2115956 CA2115956A1 (en) | 1994-02-18 | 1994-02-18 | Sheave cleaning tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2115956A1 true CA2115956A1 (en) | 1995-08-19 |
Family
ID=4152935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2115956 Abandoned CA2115956A1 (en) | 1994-02-18 | 1994-02-18 | Sheave cleaning tool |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2115956A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110577128A (en) * | 2018-06-07 | 2019-12-17 | 西子西奥电梯有限公司 | Elevator track detects and rust cleaning device |
| US11078048B2 (en) | 2019-01-29 | 2021-08-03 | Otis Elevator Company | Elevator sheave cleaner |
-
1994
- 1994-02-18 CA CA 2115956 patent/CA2115956A1/en not_active Abandoned
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110577128A (en) * | 2018-06-07 | 2019-12-17 | 西子西奥电梯有限公司 | Elevator track detects and rust cleaning device |
| CN110577128B (en) * | 2018-06-07 | 2021-01-19 | 西子西奥电梯有限公司 | Elevator track detects and rust cleaning device |
| US11078048B2 (en) | 2019-01-29 | 2021-08-03 | Otis Elevator Company | Elevator sheave cleaner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |