JP4647530B2 - Grease head, grease gun equipped with the same, and grease device - Google Patents

Description

  The present invention relates to a greasing head used for supplying oil and fat to a wire rope, a greasing gun equipped with the same, and a greasing device for maintaining the performance of the wire rope used in a crane or the like.

A wire rope used in a crane or the like needs to regularly supply (apply) oil and fat in order to prevent rust and deterioration of a metal wire constituting the wire rope and to maintain its performance. For this reason, conventionally, oil and grease are applied to the surface of the wire rope by hand using a brush, a brush, a piece of cloth, or the like.
However, when applying oil and fat manually to a wire rope in use in a crane or the like, it is rare to remove the wire rope from the crane and apply the oil or grease, and in many cases the wire rope is attached to the crane, Oil was applied.
In particular, when the crane is an overhead traveling crane (hereinafter referred to as an “overhead crane”), it is not only dangerous to apply grease to the wire rope by hand, but it is dangerous. It was necessary to install a scaffold for working safely, and the work efficiency was very bad. In addition, since the overhead crane is a dangerous manual operation at a high place, the oil and fat is not uniformly applied to the wire rope. There is a problem that if there is an insufficient part of oil and fat applied to the wire rope, the life of the wire rope may be shortened.

As one method for solving such a problem, a grease applying device for a wire rope as described below has been proposed.
The grease application device for the wire rope has a hollow through hole through which the wire rope passes, a plurality of application adapters for applying the grease around the wire rope, and a grease supply device that supplies the application adapter with grease. It is roughly composed. The application adapter includes a bearing ring that supports the wire rope on the axis, and a seal brush that is positioned outside the bearing ring in the axial direction and seals around the wire rope. And the grease supply apparatus is provided with the distribution valve which distributes a suitable quantity of grease to several application | coating adapters (for example, refer patent document 1).

As another method to solve the above problem, the upper case and the lower case can be mounted and coupled so as to sandwich the wire rope, and the upper case and the lower case are made of oil-resistant rubber, resin, etc. After connecting the upper and lower sides to the wire rope, it becomes the grease coating tank chamber, and a grease injection hose is connected to this tank, the grease is fed into the grease coating tank by the grease pump, and the wire rope passes through the tank In this case, a wire grease coating tool for applying grease to a wire rope has been proposed (for example, see Patent Document 2).
JP 2004-238762 A No. 3020235

  The above-mentioned grease coating device and wire grease coating tool for a wire rope pass through a hole that penetrates the wire rope along the axis of the wire rope through the case composed of the upper case and the lower case, and further passes the wire rope to the upper case. And the lower case. Therefore, when a plurality of pulleys and wire ropes are used in combination, such as a crane, and the linear continuity of the wire ropes is blocked by the pulleys, the method using the grease coating device to the wire ropes is It was necessary to provide an application adapter for applying grease to each part having the property. Further, in the method using the wire grease coating tool, it is necessary to replace the grease application tank chamber every time the linear continuity of the wire rope is blocked by the pulley.

  In the method using the grease application device for the wire rope, the number of application adapters increases every time the wire rope is folded back by the pulley, so that the installation cost becomes high if they are all installed. Therefore, the method using the grease applying device to the wire rope is, for example, a gas holder (the amount of gas filled in the tank) rather than using a single wire rope and a plurality of pulleys like a crane. It is suitable for a case where the operation is relatively simple such as up and down movement, such as a gas tank whose ceiling moves up and down, and one or two pulleys are used for one wire rope. Think.

  In addition, in the method using the wire grease coating tool, it is necessary to change the grease application tank chamber every time the wire rope is folded back by the pulley, and like a crane, a single wire rope and a plurality of pulleys can be combined. In the equipment used to fold the wire rope over and over, the work of replacing the grease application tank chamber was complicated and not practical.

  The present invention has been made to solve the above-described problems, and a plurality of devices for applying oil and fat to a wire rope that is folded back repeatedly by a plurality of pulleys, such as a crane, is provided. Another object of the present invention is to provide a greasing head that can easily apply oil and fat without changing the device for applying oil and fat, a greasing gun equipped with the head, and a greasing device.

  As a result of intensive studies to solve the above problems, the present inventors have encircled a wire rope along its circumferential direction, and have a pair of bent pipe parts whose one ends are closed, and these bent pipes. A second pipe portion that communicates with the other end portion of the portion, and a plurality of greasing holes are formed in the inner peripheral surface of these bent pipe portions, and each of the one end portions of these bent pipe portions is in the axial direction. It is found that, by making the gap larger than the diameter of the wire rope, it is possible to perform the greasing work effectively utilizing the length of the greasing gun from a safe and stable work position, The present invention has been completed.

  That is, the greasing head of the present invention is a greasing head that grits the outer peripheral surface of the wire rope, and encloses the wire rope in an annular shape along the circumferential direction and has a pair of ends closed. And a second pipe portion communicating with the other end portion of these bent pipe portions, and a plurality of greasing holes are formed on the inner peripheral surface of these bent pipe portions. One end portions of the bent pipe portions are spaced apart in the axial direction, and the gap is larger than the diameter of the wire rope.

  In the greasing head of the present invention, it is preferable that the cross-sectional area perpendicular to the extending direction of the bent pipe portion is twice or more the total area of the openings of the plurality of greasing holes.

  The greasing gun of the present invention is characterized by comprising the greasing head of the present invention and control means for controlling the amount of oil to be greased from the greasing head to the outer peripheral surface of the wire rope.

  The greasing apparatus of the present invention is provided with the greasing gun of the present invention.

  According to the greasing head of the present invention, it is a greasing head that grits the outer peripheral surface of the wire rope, and surrounds the wire rope in a ring shape along the circumferential direction, and a pair of ends closed. And a second pipe portion communicating with the other end portion of these bent pipe portions, and a plurality of greasing holes are formed on the inner peripheral surface of these bent pipe portions. Since each end of the bent pipe is spaced apart in the axial direction and the gap is larger than the diameter of the wire rope, the wire rope is entangled in the gap between the ends of the bent pipe of the greasing head. Thus, it is possible to prepare for the grease supply to the outer peripheral surface of the wire rope only by arranging the wire rope at the substantially central portion of the ring formed by the bent pipe portion. Therefore, the wire rope can be greased in a short time compared to the conventional method using a brush or brush. In addition, since a plurality of greasing holes are provided at equal intervals on the inner peripheral surface of the greasing head, the oil can be uniformly applied to the outer peripheral surface of the wire rope. In addition, the conventional method using a brush or brush may be dangerous at a high working position. However, by adjusting the greasing gun appropriately, the greasing gun can be operated from a safe and stable working position. It is possible to perform the greasing work effectively utilizing the length of the.

The best mode of the greasing head of the present invention, the greasing gun equipped with the head, and the greasing device will be described.
This embodiment is specifically described for better understanding of the gist of the invention and does not limit the present invention unless otherwise specified.

  The greasing head of the present invention, the greasing gun provided with the same, and the greasing device are provided for the application of oil and fat to the outer peripheral surface of the overhead traveling crane such as the bucket hoisting / lowering wire rope and the opening / closing wire rope. It is used for greasing.

FIG. 1 is a schematic configuration diagram showing an embodiment of a greasing apparatus according to the present invention.
In FIG. 1, reference numeral 10 is a greasing device, 11 is an oil / fat tank, 12 is a pressure pipe, 13 is a pump, 14 is a check valve, 15 is a connector, 16 is a flexible hose, 17 is a gun for greasing, 18 is A straight pipe portion of the greasing gun, 19 is a control means, 20 is a greasing head, and 30 is a wire rope.
The greasing apparatus 10 of this embodiment is generally configured from an oil / fat tank 11, a pump 13, and a greasing gun 17 having a greasing head 20.

The oil tank 11 and the pump 13 are connected via a pressure pipe 12. The pump 13 and the greasing gun 17 are connected via the pressure pipe 12, the check valve 14, the pressure pipe 12, the connector 15, the flexible hose 16 and the connector 15 in this order.
The oil / fat tank 11 temporarily stores oil / fat supplied to the outer peripheral surface of the wire rope 30. The fats and oils stored in the fat and oil tank 11 are sent to the grease gun 17 by the pump 13 connected via the pressure pipe 12.
The oil tank 11 and the pump 13 are disposed in close proximity to each other, and are installed in a flat place with no obstacles in the periphery and good workability.

  In the middle of the pressure pipe 12, valves are provided at appropriate positions such as the outlet of the oil / fat tank 11, the inlet and outlet of the pump 13, and before and after the check valve 14, and when the greasing device 10 is not used. The oil and fat does not leak from the pressure pipe 12 and foreign matter does not enter the pressure pipe 12.

The check valve 14 is provided in the middle of the pressure pipe 12, so that the oil and fat sent out by the pump 13 is supplied at a predetermined flow rate and flow rate without flowing back to the pump 13 and the oil and fat tank 11. The oil gun 17 is supplied.
A flexible hose 16 that can be moved freely is connected to the pressure pipe 12 connected to the greasing gun 17 side of the check valve 14 via a connector 15 made of a flange, a coupler, or the like. .

  The greasing gun 17 is connected to the flexible hose 16 via the connector 15. Thereby, the direction of the grease gun 17 is not limited by the pressure pipe 12, and as a result, the direction of the grease head 20 that forms the tip of the grease gun 17 is not limited. .

  As the oil tank 11, a tank having a capacity of about several tens to several hundreds of liters is used. In the present invention, the amount of grease supplied at one time hardly exceeds 18 liters. For example, 300 liters of oil and fat can be used as an oil and fat tank having a capacity capable of accommodating oil and fat for one 200 liter drum can. A tank is used.

  The pressure pipe 12 is not particularly limited, and the material, thickness, inner diameter, and the like are appropriately determined according to the conditions (type of oil and fat, oil and fat delivery pressure, etc.) to be used. For example, as the pressure pipe 12 connecting the oil / fat tank 11 and the pump 13, one specified by the manufacturer of the pump 13 is used, and as the pressure pipe 12 used between the pump 13 and the flexible hose 16, the pressure pipe is used. For example, a steel pipe 15A (Sch60) for pressure pipe made of carbon steel STPG370 is used.

The pump 13 is not particularly limited, and is appropriately selected according to the conditions to be used (type of oil and fat, oil and oil delivery pressure, etc.). As the pump 13, for example, a pump having a capacity of 1 m ³ / hr, a total pressure of 10 kg / cm ² , and a drive motor of 1.5 kW is used.

As the flexible hose 16, a pressure-resistant and oil-resistant one is used, and the material, thickness, inner diameter, and the like are appropriately determined according to the conditions (type of oil and fat, oil and oil delivery pressure, etc.) to be used. The length of the flexible hose 16 is such that it does not interfere with the operation of the greasing gun 17 when grease is applied to the outer surface of the bucket hoisting / lowering wire rope or the opening / closing wire rope of the overhead traveling crane. Although it adjusts suitably, for example, it adjusts to about several m-several tens m. If the length of the flexible hose 16 is too short, the operation by the greasing gun 17 is hindered. On the other hand, if the length of the flexible hose 16 is too long, it becomes difficult to carry the flexible hose 16 itself. As the flexible hose 16, for example, an inner diameter of about 10 mm, a length of 2 m, a pressure strength of 10 kg / cm ² , and an oil resistant material are used.

  The greasing gun 17 is provided between the greasing head 20, the straight pipe portion 18 connected to the rear end side of the greasing head 20, and between the straight pipe portion 18 and the greasing head 20. The control means 19 controls the amount of oil to be greased from the greasing head 20 to the outer peripheral surface of the wire rope 30.

FIG. 2 is a schematic plan view showing an embodiment of a greasing head according to the present invention. FIG. 3 is a schematic side view showing an embodiment of a greasing head according to the present invention. FIG. 4 is a schematic front view showing an embodiment of a greasing head according to the present invention.
The greasing head 20 is for greasing the outer peripheral surface of the wire rope 30, and encloses the wire rope 30 in an annular shape along the circumferential direction, and a pair of circles whose one end portions 21a and 21a are closed. It is comprised from the curved pipe parts 21 and 21 which make | form an arc shape, and the 2nd pipe part 22 of the straight tube shape connected to the other end parts 21b and 21b of the curved pipe parts 21 and 21. A plurality of greasing holes 23 are formed in the inner peripheral surfaces 21c of the curved pipe portions 21 and 21, and the one end portions 21a and 21a of the curved pipe portions 21 and 21 are spaced apart in the axial direction, and the gap d Is larger than the diameter of the wire rope 30 passed through the circle formed by the pair of curved pipe portions 21 and 21.
Further, the curved pipe portions 21 and 21 have an arc shape, and the entire curved pipe portions 21 and 21 have an annular shape. The end portions 21a and 21a of the curved pipe portions 21 and 21 are viewed in plan (in FIG. 2, when the wire rope 30 is passed through a circle formed by the pair of curved pipe portions 21 and 21, the wire rope 30 Part of it overlaps (see from the axial direction). Thereby, even if the wire rope 30 moves during the greasing operation, the greasing head 20 can be maintained in an annular shape along the circumferential direction of the wire rope 30, so that the outer circumferential surface of the wire rope 30 can be reliably fed. Can be greasy.

  The size of the opening portion of the greasing hole 23 is the amount of oil to be fed from the greasing hole 23 to the wire rope 30 (hereinafter sometimes referred to as “greasing amount”), the greasing hole 23. It is appropriately determined according to the discharge pressure of the oil and fat discharged toward the wire rope 30 and the number of the greasing holes 23. Conversely, if the size and number of the greasing holes 23 are determined, the amount of greasing from the greasing holes 23 to the wire rope 30 is controlled by adjusting the oil discharge pressure from the greasing holes 23. be able to. This discharge pressure can be adjusted by providing a pressure reducing valve (not shown) in the middle of the pressure pipe 12 used between the pump 13 or the grease gun 17. .

Moreover, it is preferable that the cross-sectional area perpendicular | vertical to the alongside direction of the curved pipe parts 21 and 21 is 2 times or more of the total area of the opening part of the plurality of greasing holes 23, and is 3 times or more and 5 times or less. More preferably. If it does in this way, if the cross-sectional area perpendicular | vertical to the coexisting direction of the curved pipe parts 21 and 21 with respect to the total area of the opening part of the some grease hole 23 is in said range, each grease hole From 23 to the wire rope 30, substantially the same amount of oil can be stably supplied.
For example, the diameter of the opening of the greasing hole 23 is about 0.5 mm to 2.0 mm, the number of the greasing holes 23 is about 6 to 18, and preferably the diameter of the opening of the greasing hole 23 is 0. When the number of the greasing holes 23 is about 8 to 12 when the bent tube portion 21 having an inner diameter of 12 mm at the maximum is used, The vertical cross-sectional area is twice the total area of the openings of the plurality of greasing holes 23, and the lowest target can be secured.

Actually, after determining the size and number of the opening portions of the greasing holes 23, the vertical section of the curved pipe portions 21, 21 with respect to the total area of the opening portions of the plurality of greasing holes 23 is cut. The inner diameters of the bent pipe portions 21 and 21 are determined so that the area is in a preferable range.
The inner diameters of the pressure pipe 12, the flexible hose 16, the straight pipe portion 18 of the greasing gun 17, the second pipe portion 22 of the greasing head 20, etc. are the same as the inner diameters of the curved pipe portions 21, 21. Alternatively, by making it larger, a sufficient margin is provided for delivering the fats and oils.
Temporarily, the diameter of the opening part of the greasing hole 23 is 1.0 mm, the number of the greasing holes 23 is 12, and the curved pipe parts 21 and 21 have a total area of the opening parts of the plurality of greasing holes 23. When the cross-sectional area perpendicular to the creeping direction is quadrupled, the inner diameters of the bent pipe portions 21 and 21 may be about 7.0 mm.

  As a pipe forming the straight pipe portion 18 of the greasing gun 17, the second pipe portion 22 of the greasing head 20, and the bent pipe portions 21, 21, a steel pipe 6A for pressure piping made of carbon steel STPG 370 for pressure piping ( Sch40) or the like is used.

  In addition, in this embodiment, although the curved pipe parts 21 and 21 comprised the circular arc shape, and these curved pipe parts 21 and 21 whole illustrated the annular | circular shape, the greasing of this invention was illustrated. The head for use is not limited to this. In the greasing head of the present invention, any shape may be used as long as the pair of curved pipe portions surrounds the wire rope in an annular shape.

The control means 19 of the greasing head 20 is provided in a portion that grips the greasing gun 17 and controls the amount of oil to be greased from the greasing head 20 to the outer peripheral surface of the wire rope 30. Such control means 19 includes, for example, a structure such as a pistol trigger, and when this trigger is pulled, oil and fat is discharged from the opening of the greasing hole 23, while the trigger is pulled. When the gold is released, the oil discharge from the opening of the greasing hole 23 stops.
The control means 19 includes, for example, a valve-like structure. When the valve is opened, oil and fat is discharged from the opening of the greasing hole 23, while when the valve is closed, Oil discharge from the opening of the greasing hole 23 stops. Here, as a valve-like structure, a needle valve or a ball valve is used. The ball valve is a type of valve that uses a cock-type handle, and if this ball valve is used, the valve can be opened and closed instantaneously, so that the start and stop of the lubrication and the adjustment of the lubrication amount are performed quickly. be able to.

  In addition, it is preferable to provide a pressure reducing valve on the pump 13 side of the valve provided near the end of the pressure pipe 12 and adjust the oil discharge pressure because the adjustment of the amount of grease can be easily performed at a location close to the operator. . There is also a method of directly adjusting the discharge pressure of the pump 13, but in this method, the place for adjusting the discharge pressure is located far away from the operator, so that the workability may be greatly reduced.

Considering that the greasing operation for the wire rope 30 is performed by one person, it is preferable to provide an operation panel for starting and stopping the pump 13 in the vicinity of the pump 13.
Furthermore, it is more preferable to provide the pressure reducing valve 14, the pump 13, and its operation panel near the place where the greasing work is performed. In this way, all work can be performed alone.

Next, the method of greasing to the outer peripheral surface of the wire rope 30 using the greasing apparatus 10 of this embodiment is demonstrated.
First, the greasing gun 17 is connected to the flexible hose 16 via the connector 15 before starting the greasing to the wire rope 30.
Next, after confirming the presence or absence of leakage from the pressure pipe 12, the flexible hose 16, etc., the necessary valves are opened and closed.
Next, it is confirmed whether or not sufficient fats and oils are stored in the fat and oil tank 11, and the fats and oils are supplied to the fat and oil tank 11 as necessary (when the amount of fats and oils is insufficient).
Next, after confirming the opening / closing of a valve provided in each pressure pipe 12 or the like, the pump 13 is started. After the pump 13 is started, the pressure is adjusted by the check valve 14. At this time, pressure adjustment is performed by the control means 19 of the greasing gun 17 as necessary. When the control means 19 of the greasing gun 17 has a structure such as a pistol trigger, the oil or fat is discharged when the trigger is pulled, or the control means 19 has a structure such as a valve. In some cases, when the valve is opened, oil and fat are discharged, so a container is prepared to receive oil and fat so that it does not spill outside.

  Next, after the pressure adjustment is completed, the discharge of the oil and fat is once stopped by the control means 19 of the greasing gun 17, and the gap d between the one end portions 21 a and 21 a of the curved pipe portions 21 and 21 of the greasing head 20. The wire rope 30 is arranged at substantially the center of the circle formed by the bent pipe portions 21 and 21 so that the wire rope 30 is entangled with the wire rope 30.

Next, the control means 19 of the grease gun 17 is adjusted to start the grease supply to the outer peripheral surface of the wire rope 30.
When the control means 19 has a structure such as a pistol trigger, the trigger is pulled to discharge the oil from the greasing head 20. Further, when the control means 19 has a structure such as a valve, the valve is opened and oil and fat is discharged from the greasing head 20.
When the discharge of oil from the greasing head 20 is started, the greasing head 20 is slowly moved up and down or back and forth along the wire rope 30 to uniformly apply the oil to the wire rope 30. In order to apply the oil and fat evenly to the wire rope 30, it is preferable that the oil supply head 20 is twisted to the left and right as the oil supply head 20 is moved up and down or back and forth as necessary.

Subsequently, after the application of the oil and fat to the range in which the greasing head 20 of the greasing gun 17 reaches the wire rope 30 is finished, the greasing gun 17 is moved to a position where the greasing can be made, or Then, an operation such as feeding the wire rope 30 is performed, and the greasing to the wire rope 30 by the greasing gun 17 is continued.
At this time, if it is necessary to interrupt the greasing, the control means 19 of the greasing gun 17 is adjusted to stop the greasing to the outer peripheral surface of the wire rope 30. When the movement of the greasing gun 17 or the feeding out of the wire rope 30 is completed and ready, the greasing is resumed on the outer peripheral surface of the wire rope 30 by the greasing gun 17.

  When the wire rope 30 is bent back and forth by the pulley, operations such as moving the greasing gun 17 to a position where the greasing can be performed and feeding the wire rope 30 are repeated, and the greasing gun 17 Grease the rope 30 sequentially.

Then, when the grease supply to the outer peripheral surface of the wire rope 30 is completed, the oil and grease remaining in the grease gun 17 is treated so as not to spill and contaminate the surroundings, and then the control means 19 of the grease gun 17 is controlled. To stop the greasing to the outer peripheral surface of the wire rope 30.
Thereafter, the greasing head 20 of the greasing gun 17 is gently removed so as not to contact the wire rope 30, and temporarily placed in a safe and unobstructed place. At the same time, the pump 13 is stopped so that oil and fat are not accidentally ejected from the greasing apparatus 10.

Next, among the valves provided in each pressure pipe 12 and the like, necessary valves are closed.
Next, after the flexible hose 16 and the greasing gun 17 are treated so that the oil remaining in them does not spill and the surroundings are not soiled, the oil remaining in these is discharged and a predetermined place is removed. Clear up. At this time, if necessary, the ends of the pressure pipe 12, the flexible hose 16 and the greasing gun 17 are plugged with caps or the like in order to prevent dirt and foreign matter from entering.
Finally, the oil and fat discharged from the pressure pipe 12, the flexible hose 16, and the grease gun 17 are finished.

As described above, according to the greasing apparatus 10 of this embodiment, the curved pipe portions 21 and 21 of the greasing head 20 are separated from each other in the axial direction, and the wire rope 30 is entangled in the gap d. Thus, it is possible to prepare for the grease supply to the outer peripheral surface of the wire rope 30 only by arranging the wire rope 30 at substantially the center of the circle formed by the bent pipe portions 21 and 21. Therefore, the wire rope can be greased in a short time compared to the conventional method using a brush or brush. In addition, since the plurality of greasing holes 23 are provided at equal intervals on the inner peripheral surface 21 c of the greasing head 20, oil and fat can be evenly applied to the outer circumferential surface of the wire rope 30. Therefore, it is possible to prevent the wire rope 30 from being rusted or damaged due to insufficient application of the oil.
In addition, in the conventional method using a brush or brush, the work position may be dangerous at high places. However, according to the greasing apparatus 10 of this embodiment, the greasing gun 20 is appropriately adjusted. Thus, it is possible to perform the greasing work effectively utilizing the length of the greasing gun 20 from a safe and stable work position. In addition, the work conventionally performed by two or more people can be performed by one person.

  The greasing head according to the present invention, the greasing gun equipped with the same, and the greasing device reduce the diameter of the greasing hole provided in the greasing head and reduce the greasing pressure. If it can be sprayed with a fine particle size by raising it, it can also be applied to the painting of a cylindrical surface.

It is a schematic structure figure showing one embodiment of a greasing device concerning the present invention. It is a schematic plan view which shows one Embodiment of the greasing head which concerns on this invention. It is a schematic side view which shows one Embodiment of the greasing head which concerns on this invention. It is a schematic front view which shows one Embodiment of the greasing head which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Grease apparatus 11 Oil tank 12 Pressure piping 13 Pump 14 Check valve 15 Connector 16 Flexible hose 17 Grease gun 18 Straight pipe part 19 Control means 20 Grease head 21 Curved pipe part 22 Second pipe part 23 Grease hole 30 Wire rope

Claims (4)

A greasing head for greasing the outer peripheral surface of the wire rope,
The wire rope is annularly surrounded along its circumferential direction, and includes a pair of bent pipe parts whose one end is closed, and a second pipe part communicating with the other end of these bent pipe parts. A plurality of greasing holes are formed on the inner peripheral surface of the curved pipe portion, one end of each of the curved pipe portions is spaced apart in the axial direction, and the gap is larger than the diameter of the wire rope. A grease head.   2. The greasing head according to claim 1, wherein a cross-sectional area perpendicular to the extending direction of the curved pipe portion is at least twice the total area of the openings of the plurality of greasing holes.   3. A greasing gun comprising the greasing head according to claim 1 and a control means for controlling the amount of oil to be fed from the greasing head to the outer peripheral surface of the wire rope. A greasing apparatus comprising the greasing gun according to claim 3.

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