JPH11197615A - Iron piece cleaning tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an iron piece cleaning tool for removing iron piece such as chips generated when a work is cut by a machine tool. SOLUTION: When a rod 6 is pushed into an outer cylinder 4, the tip of a lever 28 is raised on the inclined surface 18 of a flange part 17, a notch 36 is coupled with the flange part 17, the outer cylinder 4 is fixed to the rod 6, a spring 26 is compressed, and a magnet 7 is positioned at the end part of the outer cylinder 4. By holding a glip 8, the tip of an iron piece cleanup tool 1 is located opposite to iron pieces such as chips, the iron pieces are attracted to the magnet 7 through the outer cylinder 4. When the engagement of the lever 28 and the flange part 17 is released, the outer cylinder is pushed out by the spring 26 so that the iron pieces are prevented from moving from the peripheral surface 9 of the outer cylinder 4 to a dropping plate 10 to be separated from the outer cylinder 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an iron piece cleaning tool for cleaning and removing iron pieces such as cutting chips generated by cutting a workpiece in a factory or a machine tool.

[0002]

2. Description of the Related Art When cutting a workpiece with a machine tool, chips are always generated. When processing a crane mast or main body used in an automatic warehouse, or a base, a bed, or a main body that constitutes a machine tool (workpiece), a large machine tool is used because the work piece is large. The amount of generated chips also becomes enormous. As these large machine tools, general-purpose types are often selected so that various types of workpieces can be machined. Unlike general-purpose machine tools, special-purpose machine tools are designed so that the chip guard can be easily removed to allow flexibility in the shape and size of the workpiece. I have.

[0003] Since the machine tool parts and the automatic warehouse do not employ the mass production method of the workpiece parts, but adopt the order-made production method, the production quantity cannot be expected at all. Therefore,
When the machining of the workpiece is completed, the work of attaching and detaching the workpiece to replace it with the workpiece to be processed next, and the setup change work for setting the machining of a workpiece different from the conventional workpiece Is performed. The contents that are always performed when performing these operations include the operation of removing chips. General-purpose machine tools do not have a sealed chip guard,
Unlike special-purpose machine tools, a method of flushing with a large amount of cutting oil is not adopted. In particular, the bases and beds that make up the parts of machine tools are often made of castings. Generally employs a dry cut method.

[0004]

In the dry cutting method, fine dust that flies can be captured by a dust collector, but it is located in the vicinity of a work mounting table for mounting a work or a mounting jig serving as a processing reference. The accumulated chips need to be removed manually. Of course, you can use an air gun to blow off the chips, but there are too many chips and the chips are scattered around, which is not a good idea. And the efficiency is far from good. in this way,
The fact that time is spent for complete cleaning and that the time for setup change is longer than the processing time is a major factor in cost increase.

[0005] In general, a large-sized machine tool has a dovetail groove formed on a work mount, and chips may be accumulated in the dovetail groove in some cases. The dovetail is used to fix the workpiece and the mounting jig. However, even if the bolts are tightened up with the cutting chips in between, they are not completely tightened, and they loosen during processing and become loose during machining. The tool will move. In the worst case, a light work piece or a mounting jig could jump out of the machine, or the machined work piece would be defective.

[0006]

SUMMARY OF THE INVENTION It is an object of the present invention to ensure that iron pieces scattered in factories and the like, such as cutting chips generated when machining a workpiece with a machine tool, can be removed. An object of the present invention is to provide an iron piece cleaning tool which can be operated easily, in a short time, and inexpensively by performing a simple and inexpensive cleaning operation of the iron piece by incorporating a magnet into the iron piece.

According to the present invention, there is provided an outer cylinder made of a nonmagnetic material having one end formed at a closed end and the other end formed at an open end, a lid attached to the open end of the outer cylinder, and the outer cylinder. A rod inserted into the inside and slidably guided by the lid; a magnet fixed to one end of the rod and movable in the outer cylinder as the rod slides; A grip provided at the other end of the rod protruding out of the cylinder, and an iron piece adsorbed to the magnet via the outer cylinder by the magnet is fixed to an outer peripheral surface of the outer cylinder so as to be detached from the outer cylinder. The present invention relates to an iron piece cleaning tool comprising a drop plate made of a non-magnetic material.

This iron piece cleaning tool is used in a state where the rod is pushed into the outer cylinder and the magnet is positioned at one end of the outer cylinder. First, when the user grips the grip and presses the tip, that is, one end of the iron piece cleaning tool, downward, against an iron piece such as swarf accumulated, the iron piece magnetically adheres to the bottom surface and the outer peripheral surface of the outer cylinder. In this state, when the iron piece cleaning tool is carried to a position such as a chip receiving box and the rod is pulled out from the outer cylinder, the iron piece moves toward the lid, that is, upwards with the relative movement between the magnet and the outer cylinder. While moving along the outer peripheral surface of the outer cylinder, the movement is hindered by the dropping plate made of non-magnetic material, and falls from the outer cylinder.

In the iron piece cleaning tool, the drop plate is mounted at a position where the distance from one end of the outer cylinder is longer than the length of the magnet, and the operating stroke of the magnet is equal to that of the outer cylinder. It is longer than the distance from one end to the drop plate. Therefore, when the rod is pulled out from the outer cylinder to the maximum, the magnet is completely retracted toward the lid side from the drop plate, and the magnetic force of the magnet is applied to the iron piece adsorbed to the magnet via the outer cylinder. The iron piece is no longer reachable, and the dropping plate ensures that the iron piece is detached from the outer cylinder.

In the above-mentioned iron piece cleaning tool, the drop plate is detachable and the mounting position of the drop plate is adjustable. By adjusting the position of the drop plate, the drop plate can be fixed at an arbitrary position.

Further, the iron piece cleaning tool is provided between the holder and the lid for attaching the grip to the other end of the rod, and is urged in a direction to pull out the rod from the outer cylinder. It has a spring and an engaging member provided on the holder and capable of engaging with the lid.

[0012] In the iron piece cleaning tool, the lid has a flange portion having an inclined surface whose diameter increases toward the outer cylinder, and the engaging member is rotated by the holder. The lever is freely attached and has a notch formed at the tip, and the lever is urged by a pressing spring so as to rotate in a direction in which the notch and the flange portion engage. Therefore, when the rod is pushed into the outer cylinder, the tip of the lever rides smoothly on the inclined surface of the flange, and the notch formed at the tip of the lever engages with the flange. At this time, the spring disposed between the lid and the holder is compressed and held while maintaining the tension, and the magnet is located at one end of the outer cylinder.
This iron piece cleaning tool is ready for use. Therefore, when the grip is grasped and the iron piece cleaning tool is pressed downward or opposed to an iron piece such as a swarf that has accumulated, the iron piece is attracted to the bottom surface and the outer peripheral surface of the outer cylinder by the magnet. In this state, the iron piece cleaning tool is carried to a position such as a chip receiving box (not shown), and the lever is disengaged from the flange portion. Then, the rod is pushed out of the outer cylinder by a spring force.
Thereafter, the outer cylinder naturally moves downward due to gravity. Along with this, the iron piece moves on the outer peripheral surface of the outer cylinder toward the lid, but the movement is hindered by the drop plate of non-magnetic material.
When the influence of the magnetic force by the magnet is removed, the magnet falls off the outer cylinder and separates.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of an iron piece cleaning tool according to the present invention will be described with reference to the drawings. FIG. 1 is a sectional view showing the entire structure of an iron piece cleaning tool according to the present invention, and FIG.
3 is a detailed sectional view of a magnet portion of the iron piece cleaning tool shown in FIG. 1, and FIG. 3 is a detailed view of a grip portion when the iron piece cleaning tool shown in FIG. 1 is viewed from the side.

As shown in FIG. 1, the iron piece cleaning tool 1 comprises an outer cylinder 4 made of a non-magnetic material having a closed end bottom plate 2 at one end and an open end opening 3 at the other end. The lid 5 attached to the opening 3, the rod 6 inserted into the outer cylinder 4 and slidably guided by the lid 5, is fixed to one end of the rod 6, and is fixed inside the outer cylinder 4 as the rod 6 slides. Permanent magnet 7, which can move
A grip 8 provided at the other end of the rod 6 protruding from the lid 5 to the outside of the outer cylinder 4, and an iron piece adsorbed to the magnet 7 via the outer cylinder 4 by the magnet 7 are separated from the outer cylinder 4. And a drop plate 10 made of a non-magnetic material and attached to the outer peripheral surface 9 of the main body.

The outer tube 4 is made of a round pipe. One end of a cylindrical tube 11 is sealed in a watertight state by a bottom plate 2, and the other end of the tube 11 has an opening 3. Outer peripheral surface 9 at the other end of cylindrical portion 11
Is screwed with the cover 5, and the opening 3 of the outer cylinder 4 is closed.

The cover 5 has a through hole 13 formed in the center, and the rod 6 is inserted through the through hole 13. Through hole 13
A cylindrical bearing portion 14 is formed around the rod, and the rod 6 is slidably supported on the lid 5 and guided by the bearing portion 14.

A flat dropping plate 10 having a flange shape is fixed to the outer peripheral surface 9 of the outer cylinder 4. The drop plate 10 is fixed to a set ring 15. The set ring 15 is externally fitted to the tube portion 11 of the outer tube 4, and can be fixed to the tube portion 11 at an arbitrary position by tightening a set screw 16. . The drop plate 10 is made of a thin plate and is easily damaged as compared with the outer cylinder 4, but can be easily replaced by loosening the set screw 16.

The lid 5 screwed to the other end of the outer cylinder 4 has a part of the outer periphery formed in a flange shape, and the flange portion 17 has a front end side (the lower side in FIG. 1) of the outer cylinder 4. The inclined surface 18 is formed over the entire circumference so as to increase in diameter toward ().

The rod 6 is preferably of a light pipe shape. Threaded portions 19 are provided on the outer periphery of both ends of
(Only one is illustrated) is formed, and a permanent magnet 7 is attached to a screw portion 19 formed at one end of the rod 6. The outer diameter of the permanent magnet 7 is the cylindrical portion 11 of the outer cylinder 4.
The inner diameter of the outer cylinder 4 is slightly smaller than the inner diameter of the outer cylinder 4. The permanent magnet 7 has a donut shape, that is, a ring shape. As shown in FIG. 2, a plurality of permanent magnets 7 are alternately stacked and laminated with a spacer 20, and these are externally fitted to the thread portion 19 of the rod 6. The permanent magnet 7 is fixed to the rod 6 by tightening the nut 22 with the washer 21 interposed therebetween. Further, since the screw portion 19 of the rod 6 has the adjustment allowance A, the rod 6
It is possible to arbitrarily adjust the number of the permanent magnets 7 to be fixed on the rod 6 and the position where the permanent magnets 7 are fixed to the rod 6.

A holder 23 is screwed into a thread (not shown) at the other end of the rod 6. A spring 26 externally fitted to the rod 6 is disposed between the inner end surface 24 of the holder 23 and the outer end surface 25 of the lid 5. As shown in FIG. 3, a pair of arms 27 extend from both ends of the holder 23.
Is fixed. Further, the holder 23 has a lever 28
A bearing 30 is provided for rotatably mounting the shaft around a rotation shaft 29.

The lever 28 is urged in a counterclockwise direction in FIG. 1 by a pressing spring 31 inserted through a rotating shaft 29. That is, one end (not shown) of the pressing spring 31 is held by the holder 23, and the other end 32 urges the lever 28 downward so as to press the lever 28 from above. In order to restrict the movement of the lever 28 so that the lever 28 does not rotate more counterclockwise than necessary, a restricting portion 33 is formed in the holder 23. Further, the lever 28 has a flat and non-slip operating portion 34 so that the lever 28 can be easily pressed down by a finger when the lever 28 is rotated clockwise against the force of the pressing spring 31. I have. Further, a notch 36 having an inclined surface 35 is formed below the tip of the lever 28 so that the notch 36 of the lever 28 can engage with the inclined surface 18 formed on the flange portion 17 of the lid 5. It has become. The tip of the lever 28 is the flange 1 of the lid 5.
The tip of the lever 28 is formed with a slightly rounded R portion 37 so that the tip of the lever 28 slides easily on the inclined surface 18 of the flange portion 17 when it comes into contact with the inclined surface 18 of FIG.

A light holder 38 is provided at one end of the grip 8, and a commercially available pencil-type flashlight 39 can be attached and attached by the elastic action of the light holder 38. The pencil-type flashlight 39 irradiates the vicinity of the tip of the outer cylinder 4 as needed, and can be used to magnetically deposit the accumulated cuttings.

As can be seen from the overall structure of the iron piece cleaning tool 1 shown in FIG. 1, the length of the permanent magnet 7 in the longitudinal direction is L _1.
Then, the drop plate 10 is mounted at a position where the distance L from the tip of the outer cylinder 4 to the drop plate 10 is longer than the dimension L ₁ of the permanent magnet 7. The operating stroke S of the permanent magnet 7 is sufficiently longer than the distance L from the tip of the outer cylinder 4 to the drop plate 10. Therefore, the permanent magnet 7
Is moved to the upper end in FIG. 1 (that is, the position shown by the two-dot chain line), the lower end of the permanent magnet 7 is located considerably above the drop plate 10.

Next, the materials of the components constituting the iron piece cleaning tool 1 will be described. Since the iron piece cleaning tool 1 is operated by hand, it is necessary to minimize the fatigue caused by the work, and therefore, it is necessary to manufacture the iron piece cleaning tool from a material capable of reducing the weight of the entire apparatus. In addition, the outer cylinder 4 including the bottom plate 2, the drop plate 10 and the set ring 15
Is a prerequisite that it be made of a non-magnetic material. Examples of non-magnetic materials include, for example, reinforced engineered plastics as the resin material and hardened aluminum members with a light weight as the metal material, but stainless steel and brass members with excellent mechanical strength are most suitable. It is.

The material of the magnet 7 arranged in the outer cylinder 4 is not particularly limited as long as it is a permanent magnet. The lid 5 is preferably made of a non-magnetic material. However, since the notch 36 of the lever 28 is engaged with the flange 17, at least only the flange 17 needs to be hardened to withstand abrasion. If the rod 6 does not require much mechanical strength and can withstand buckling when the permanent magnet 7 is loosely fitted in the outer cylinder 4,
A resin pipe may be used, but a hardened aluminum pipe is optimal. However, when the pipe shape is used, the pipe is
If it is left open to the atmosphere in the three portions, there is a concern that foreign matter may enter the outer cylinder 4 from that portion, so it is necessary to close the opening end of the outer cylinder 4. Optimally, the holder 23 is made of a resin molded product or an aluminum casting. The lever 28 is preferably made of a non-magnetic material, but the R portion 37 and the notch 36 that come into contact with the flange portion 17 of the lid 5 need to be made of a material having a higher hardness than the flange portion 17. The lever rotation shaft 29, the pressing spring 31, and the spring 26 are preferably made of steel because they repeatedly operate.

Next, the operation of the iron piece cleaning tool 1 will be described. First, the user grips the grip 8 of the holder 23 and presses the tip of the outer cylinder 4 in the vicinity of the deposited chips, and pushes the grip 8 as it is. The rod 6 is fixed to the grip 8, and the permanent magnet 7 is fixed to the tip of the rod 6. As the grip 8 is pushed in, the permanent magnet 7 also advances inside the outer cylinder 4 toward the tip. Go. Lever 28
When the R portion 37 at the tip of the member comes to a position just before contact with the inclined surface 18 of the flange portion 17, the spring 26 starts compressing.
Further, when the rod 6 is pushed into the outer cylinder 4, the lever 2
The notch 36 formed on the lower surface of the tip of the lever 28 engages with the outer periphery of the flange 17 while the R portion 37 at the tip of 8 is pushed up by the inclined surface 18 of the flange 17, and the lever 31 is pressed by the spring force of the pressing spring 31. 28 is locked. Thereby, the state shown by the solid line in FIG. 1 is obtained, and the setting of the permanent magnet 7 on the outer cylinder 4 is completed. The permanent magnet 7 reaching the front end in the outer cylinder 4 allows the magnetic lines of force to pass outside the outer cylinder 4 and removes iron pieces such as cutting powder in a range where the magnetic lines of force act on the bottom plate 2 of the outer cylinder 4 and its outer peripheral surface 9. Attracts to the permanent magnet 7 via.

The reason why the spring 26 is provided between the lid 5 and the holder 23 is, first, to prevent the tip of the rod 6 from colliding with the bottom surface 2 of the outer cylinder 4, and secondly, to notch the lever 28. Thirdly, to apply a reaction force in the extension direction from the inside so as not to come off from the flange portion 17 with which the engaging portion 36 is engaged,
8 by pressing the operating portion 34 with a finger, and the notch 36 and the flange portion 1
This is to give an opportunity for the outer cylinder 4 to start moving when the engagement of the outer cylinder 7 is released.

An iron piece such as cutting powder magnetically attached to the outer cylinder 4 is
In order to remove the shingle cleaning tool 1, carry the shingle cleaning tool 1 to a separation place such as a chip receiving box (not shown), and then place the shingle cleaning tool 1 on it.
When the lever 26 is tilted downward and the lever operating part 34 is pressed with a finger to release the engagement between the notch 36 and the flange part 17, the spring 26 which has been compressed until then is released from the urging and the lid 5
, And then, for example, the outer cylinder 4
Only slips under its own weight. That is, the outer cylinder 4 and the permanent magnet 7 move relative to each other, and the permanent magnet 7 reaches the position drawn by the two-dot chain line in FIG.

As the outer cylinder 4 moves, iron pieces such as cutting powder magnetically attached to the bottom plate 2 and the outer peripheral surface 9 of the outer cylinder 4 are attracted to the magnetic field of the permanent magnet 7 and a part of the iron pieces is The outer peripheral surface 9 of the cover 4 is successively moved upwardly with the cover 5 at the position of magnetic attachment, and a part of the outer cover 9 is detached from the outer cylinder 4. Next, the iron pieces such as cutting chips that have been attracted to the drop plate 10 cannot change their positions any further, and as the permanent magnet 7 moves away from the drop plate 10, the magnetic field weakens and the iron pieces move to the position of the drop plate 10. And fall.

As described above, a series of operations including setting of the permanent magnet 7, magnetic attachment of the chips, release of the lever 28, movement of the permanent magnet 7, release of the attraction force of the permanent magnet 7, and detachment of the chips from the outer cylinder 4. By repeating the above operation, the operation of removing the swarf, that is, the cleaning operation can be easily performed.

When there is a large amount of chips, the number of the permanent magnets 7 to be laminated can be increased, and at the same time, the set position of the drop plate 10 can be changed to increase the amount of chips removed at one time. . However, increasing the number of the permanent magnets 7 has the disadvantage that the weight of the iron piece cleaning tool 1 increases, and that fatigue of the worker is promoted. Taking a longer dimension L ₁ of the permanent magnet 7, inevitably working stroke S
Becomes shorter. When the permanent magnet 7 is moved to the lid 5 side,
If the magnetic field generated by the permanent magnet 7 extends to the opposite side of the drop plate 10, the chips will not drop.

Further, since many chips are adsorbed in one operation, when the permanent magnet 7 is moved to the lid 5 side, it is expected that the chips will pass over the outer periphery of the drop plate 10. The problem can be solved by increasing the outer diameter of the drop plate 10. However, on the other hand, the drop plate 10 hinders the insertion of the iron piece cleaning tool 1 into a narrow place. Therefore, the dimension l of the permanent magnet 7, the set position of the drop plate 10 (the position of the distance L from the tip of the outer cylinder to the drop plate), the size of the drop plate 10, etc., are not necessarily large, but rather large. It is desirable to determine in consideration of workability.

In the above embodiment, the drop plate 10 is disclosed as a flat plate. However, the shape of the drop plate 10 is not limited to this, but may be a dish shape slightly inclined toward the bottom plate 2 of the outer cylinder 4. In the above embodiment, the holder 23, the holder 23
The pair of arms 27 and the grips 8 extending from the above have been described as individually manufactured and assembled. However, it is not always necessary to do so, and they are integrally formed from a resin molded product or an aluminum casting which is a lightweight metal. Is rather desirable.

In the above embodiment, the outer cylinder 4 is made of a round pipe. However, the present invention is not limited to this, and a square pipe may be used instead of the round pipe. In this case, the shape of the donut-shaped permanent magnet 7 may be square, and the holder 23 does not rotate with respect to the outer cylinder 4. It is not necessary to form the inclined surface 18 for the engagement of the notches 36 of 28, but it is sufficient to form the inclined surface for the engagement of the notch 36 at a specific location.

Further, in the above embodiment, the iron piece cleaning tool 1 in which the permanent magnet 7 is set in the outer cylinder 4 is used in the vicinity of the area where the iron pieces such as accumulated cuttings are present, but the present invention is not limited to this. In a factory or the like outside the machine tool, the permanent magnet 7 is brought into proximity with iron pieces such as scattered or deposited cuttings by using the iron piece cleaning tool 1 set in advance on the outer cylinder 4 and adsorbed on the outer cylinder 4 to remove the permanent magnets 7. It may be.

In the above embodiment, the permanent magnet 7 is used as the magnet. However, if the moving range of the worker is narrow and a power supply line can be provided, the electromagnet may be replaced with the outer magnet instead of the permanent magnet 7. You may make it accommodate in. In this case, the purpose can be achieved by repeatedly magnetizing and demagnetizing the electromagnet by operating the switch instead of the lever. When an electromagnet is used, there is no need to move the electromagnet inside the outer cylinder, so there is no need for a lever or spring, and the grip does not need to be attached to the holder fixed to the rod, so that the other end of the outer cylinder can be gripped. Is enough.

[0037]

The iron piece cleaning tool according to the present invention is constructed as described above. In short, the magnet is movably provided in the outer cylinder made of non-magnetic material, and the dropping plate made of non-magnetic material is provided in the outer cylinder. It has a simple structure and is easy to manufacture and assemble and can be provided at low cost. Also, grasp the grip and press the tip of the iron piece cleaning tool downward against an iron piece such as swarf that has accumulated, magnetically attach the iron piece to the bottom or outer peripheral surface of the outer cylinder, and in this state, remove the iron piece cleaning tool. When the rod is pulled out of the outer cylinder after being transported to a position such as a chip receiving box, the iron piece moves upward on the outer peripheral surface of the outer cylinder with the relative movement between the magnet and the outer cylinder. When the drop of the body hinders the movement and the effect of the magnetic force of the magnet is weakened, it falls from the outer cylinder. As described above, the iron piece cleaning tool is easy to operate, and can perform iron piece cleaning work in a short time.

[Brief description of the drawings]

FIG. 1 is a sectional view showing the entire structure of an iron piece cleaning tool according to the present invention.

FIG. 2 is a detailed sectional view of a magnet part of the iron piece cleaning tool shown in FIG.

FIG. 3 is a detailed view of a grip portion of the iron piece cleaning tool shown in FIG. 1 when viewed from the side.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Iron piece cleaning tool 2 Bottom plate 3 Opening 4 Outer cylinder 5 Lid 6 Rod 7 Permanent magnet (magnet) 8 Grip 9 Outer peripheral surface 10 Drop plate 17 Flange part 18 Inclined surface 23 Holder 26 Spring 28 Lever (engaging member) 31 Pressing spring 36 Notch L ₁ Length of magnet S Working stroke L Distance from one end of outer cylinder to drop plate

Claims (5)

[Claims] 1. An outer cylinder made of a nonmagnetic material having one end at a closed end and the other end at an open end, a lid attached to the open end of the outer cylinder, and A rod inserted and slidably guided by the lid, a magnet fixed to one end of the rod and movable in the outer cylinder as the rod slides; a magnet from the lid to the outer cylinder; A grip provided at the other end of the rod protruding outward, and a non-magnetic member attached to the outer peripheral surface of the outer cylinder for detaching the iron piece adsorbed to the magnet via the outer cylinder from the outer cylinder. An iron strip cleaning tool consisting of a drop plate made of wood. 2. The drop plate is mounted at a position where the distance from one end of the outer cylinder is longer than the length of the magnet, and the operating stroke of the magnet is from one end of the outer cylinder to the drop plate. The iron piece cleaning tool according to claim 1, wherein the iron piece cleaning tool is configured to be longer than the distance. 3. The drop plate is detachable and the mounting position of the drop plate is adjustable.
Or the iron piece cleaning tool of 2. 4. A holder for attaching the grip to the other end of the rod, a spring provided between the holder and the lid, and for urging the rod in a direction to pull out the rod from the outer cylinder; The iron piece cleaning tool according to any one of claims 1 to 3, further comprising an engagement member provided and engageable with the lid. 5. The lid has a flange having an inclined surface whose diameter increases toward the outer cylinder,
The engaging member is a lever rotatably attached to the holder and having a notch formed at the tip, and the lever is a spring pressed by a spring so as to rotate in a direction in which the notch and the flange portion engage. The iron piece cleaning tool according to claim 4, which is biased.