KR20130131048A - Safety cover for drill machine - Google Patents

Abstract

A safety device for a drill machine is disclosed. Safety device for a drill machine of the present invention, the tapping chuck and the socket and the drill machine of the drill machine is formed in a circular or polygonal tube shape to surround the outside, a protective tube made of a transparent material; A magnet attacher configured to be magnetically attached to a surface of a metallic machine disposed around or around the drill machine; And an intermediate part that is bent or curved, and configured to be fixed or adjusted to be bent or bent, one end of which is coupled to an outer surface of the protective tube, and the other end of which is connected to the magnet attacher, wherein the magnet attacher drill machine The tapping chuck and the socket by attaching to the surface of a metallic machine disposed around or around the body, freely adjusting the connecting member to move the protective tube toward the tapping chuck, and then positioning the tapping chuck inside the protective tube. And it characterized in that the drill is to block the outside. According to the present invention, it can be installed at various positions by the magnet attacher, and because it is installed separately from the tapping chuck does not interfere at all when the upper and lower movement of the tapping chuck, it can be easily applied to the tapping chuck Since the worker's hand and the drill are blocked by the protective tube, the safety accident can be prevented in advance.

Description

Safety device for drill machine {SAFETY COVER FOR DRILL MACHINE}

The present invention relates to a safety device for a drill machine, and more particularly, to wrap the head of the drill when using a drill chuck or a drill chuck for milling, so that the worker's gloves are caught in the drill during the drilling operation, or the chip is provided to the worker. The present invention relates to a safety device for a drill machine that prevents splashing and prevents a safety accident in advance.

In general, a table drill chuck or a drill chuck of a mill is a device capable of drilling holes or forming tabs in a workpiece by fixing and rotating a cutting tool such as a drill on a rotating shaft. Such a drill machine is to put the workpiece on the workbench and to install the drill on the rotary chuck to rotate the driving motor to move the rotary chuck up and down with the lever to drill holes in the workpiece.

In this case, the worker performs the drilling work by holding the workpiece with one hand and pulling the lever with the other hand, while the gloves worn by the worker to protect the hand rotate together with the chip generated by the rotation of the drill. Accidents that often damage workers' hands have occurred. In addition, in the process of drilling a hole in the workpiece, the chip was thrown into the operator's eyes.

This problem could be solved somewhat by the safety protection cover disclosed in Republic of Korea Patent No. 10-0985788 (October 06, 2010).

That is, the inner cylinder of the transparent tube is fixed to the fixed shaft at the lower end of the head of the head of the table drill machine so that the rotary shaft of the table drill machine is inserted, and slidingly coupled to the outside of the inner cylinder, the guide hole is formed in the vertical length direction on both sides of the outer circumferential surface and It consists of an outer cylinder of the transparent tube formed with a female thread on the inner circumferential surface, and a chip container coupled to the lower female threaded portion of the outer cylinder by screwing, wherein the inner cylinder and the outer cylinder are guide holes of the outer cylinder by fixing bolts. By passing through and fixing to the inner cylinder, the drill was not exposed to the outside, thus preventing the safety of the worker.

However, such a safety cover has a problem in that the structure is complicated by being fixedly installed on the shaft of the drill machine in the state in which the inner cylinder and the outer cylinder are slidably coupled.

In particular, when replacing the drill was also inconvenient to remove from the haunting shaft.

Republic of Korea Patent No. 10-0985788 (Announcement Date October 06, 2010)

It is an object of the present invention, not only to protect the worker by wrapping the drill chuck and drill of the drill machine, but also to change the position of the transparent tube in a variety of means, the means for the installation and removal of the transparent tube can be made quickly and easily To provide.

The above object, according to the present invention, to prevent the safety accidents generated during the drilling operation by blocking the tapping chuck and the socket and the drill of the drill machine from the outside,

Tapping chuck and the socket of the drill machine and a protective tube formed of a transparent material formed in a circular or polygonal tube shape to surround the drill from the outside; A magnet attacher configured to be magnetically attached to a surface of a metallic machine disposed around or around the drill machine; A connection member configured to be bent or bent at an intermediate part, to be fixed or adjusted to be bent or bent, one end coupled to an outer surface of the protective tube, and the other end coupled to the magnet attacher; And it is formed in the form of a circular or polygonal tube of transparent material, and provides a safety device for a drill machine including a replacement protective tube is replaceably coupled to the lower region of the protective tube by a coupling means.

The protective tube is divided into two or three, and is divided in the longitudinal direction consisting of a fixed tube and a rotating tube having an arcuate or hemispherical cross section, one side of the fixed tube and the rotating tube is hinged, the other The side is selectively joined by a clamp.

The protective tube is divided into two or three, and is divided in the longitudinal direction consisting of a fixed tube and a rotating tube having an arcuate or hemispherical cross section, one side of the fixed tube and the rotating tube is hinged, the other Magnets of different polarities are respectively installed on both sides of the side facing each other, and are coupled by magnetic force in proximity to each other, and a handle for pulling the rotating tube coupled by the magnets to an outer surface of the rotating tube may be provided. Can be.

The replacement protective tube may be formed in the same manner as the protective tube, or may be integrally formed without being divided.

The inner lower region of the protective tube may be provided with a plate formed with a through hole through which the drill passes, and may be configured to block the chip formed by drilling from moving toward the tapping chuck.

The diaphragm may be formed in a flat plate shape or a hemispherical shape protruding upwardly or downwardly, and may be integrally formed at a predetermined distance from a lower end of the protective tube or may be separately manufactured and combined.

The diaphragm may be divided into two to three parts.

The connection member may include a first rod having one end coupled to the magnet attacher; A second rod having one end coupled to the protective tube; And the other end of the first rod and the second rod is coupled to each other in a different direction, it may comprise a connector having a fastening member for tightening and fixing the other end of the first rod or the second rod fitted.

The connection member is composed of a plurality of joints for connecting a plurality of rods to enable multi-folding, and one end of the rod may be coupled to the magnet attacher with a ball joint.

The connecting member may be made of a flexible pipe so as to be free from bending or bending.

The lower outer peripheral surface area of the protective tube, or the lower outer peripheral surface area or the lower end of the replacement protective tube may be provided with lighting means for irradiating light to the drilling position during the drilling operation.

The lighting means may include: a power supply provided at the magnet attacher, a coupling region of the protective tube and the connection member, or an outer circumferential surface of the protective tube; An on and off switch provided in the power supply; And it may be configured to include an LED lamp that is emitted by the power supplied from the power supply.

The power supply may be made of a battery or may be configured to receive power from the outside.

The LED lamp may be attached to the protective tube or the replacement protective tube by the attachment member while being electrically connected to the band-shaped attachment member and arranged at equal intervals.

According to the present invention, it can be installed at various positions by the magnet attacher, and because it is installed separately from the tapping chuck does not interfere at all when the upper and lower movement of the tapping chuck, it can be easily applied to the tapping chuck Since the worker's hand and the drill are blocked by the protective tube, the safety accident can be prevented in advance.

In addition, since the diaphragm is provided inside the protective tube, the phenomenon that the chip rises toward the tapping chuck is provided.

In addition, an LED lamp is provided at the lower end of the protective tube, so that the operator can safely and accurately perform drilling.

In addition, the replacement of the protective tube is provided in the lower portion of the protective tube to be replaced by a new replacement for the replacement of the lowered protective tube to provide a transparency effect to eliminate the inconvenience of the operator.

1 is a perspective view showing a safety device for a drill machine according to the present invention.
FIG. 2 is a plan sectional view showing the safety device for the drill machine shown in FIG.
3 is a side cross-sectional view showing the protective body shown in FIG.
4 and 5 are planar cross-sectional views showing another embodiment of the protective tube shown in FIG.
6 and 7 are side cross-sectional views illustrating a state in which a diaphragm is applied to the protective tube illustrated in FIG. 1.
8 and 9 are schematic views showing other embodiments of the connecting member shown in FIG. 1.
10 and 11 are side cross-sectional views showing another embodiment of a safety device for a drill machine according to the present invention.
12 is a partially enlarged plan view showing another embodiment of a safety device for a drill machine according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, the well-known functions or constructions are not described in order to simplify the gist of the present invention.

In the accompanying drawings, Figure 1 is a perspective view showing a safety device for a drill machine according to the present invention, Figure 2 is a plan sectional view showing the safety device for a drill machine shown in FIG.

1 and 2, the safety device for a drill machine according to the present invention is a circular or polygonal tubular shape to surround the tapping chuck 10, the socket 12 and the drill 14 of the drill machine from the outside. A protective tube 20 made of a transparent material, a magnet attaching device 30 configured to be magnetically attached to a surface of a metallic machine disposed around or around the drill machine, and an intermediate portion bent or bent, The bending or bending is configured to be fixed or adjusted so that one end is coupled to the outer surface of the protective tube 20, the other end is coupled to the connecting member 40 and the lower end of the protective tube 20, the magnet attachment device 30 And a replacement protective tube 80 which is replaceably coupled by means.

This will be described in more detail as follows.

Since the tapping chuck 10, the socket 12, and the drill 14 of the drill machine are already known, detailed descriptions thereof will be omitted.

The protective tube 20 is formed of a transparent material, has a polygonal or cylindrical cross-sectional shape, and has a length enough to accommodate the tapping chuck 10, the socket 12, and the drill 14 of the drill machine. This protective tube 20 is composed of a transparent synthetic resin material. Of course, the structure is not limited to an integrated transparent tube, but may be composed of a transparent tube or an opaque region and a transparent region of various structures, or may be composed of tempered glass.

Then, the lower portion of the protective tube 20 is provided with a replacement protective tube (80). The replacement protective tube 80, when the transparency of the protective tube 20 decreases due to chipping or scratching of the chip, interferes with the operator's field of view, so that the protective tube 20 is divided, It is coupled to the protective tube 20 coupled to the connecting member 40 is replaceable. That is, when the replacement protective tube 80 is used in combination with the protective tube 20, and the transparency of the replacement protective tube 80 is lowered, the new replacement after removing the existing replacement protective tube 80 The protective tube 80 for use in conjunction with the protective tube (20).

Thus, by providing the protective tube for replacement 80 in the protective tube 20, the operator can ensure a clear view.

At this time, the replacement protective tube 80 is coupled to the protective tube 20 by a coupling means as shown in FIG. That is, it is provided with a screw thread is coupled to the protective tube body 20, or coupled to the protective tube body 20, the locking tube for the replacement protective tube 80, respectively, by forming a locking projection may be inserted into the locking groove to engage. have. However, the coupling means is not limited to the screw structure or the locking projection structure, and a variety of structures that couple the replacement protective tube 80 to the lower end of the protective tube 20, can be applied again.

The protective tube 20 described above may be integrally formed as shown in FIGS. 1 and 2, but as shown in FIGS. 3 and 4, the protective tube 20 is divided into two to three parts to open and close the interior. Can be configured. That is, the protective tube 20 is divided into a longitudinal direction and consists of a fixed tube 22 and a rotating tube 24 having an arcuate or hemispherical cross section, and one of the fixed tube 22 and the rotating tube 24 is It is coupled to the hinge 26, the other side has a structure that is selectively coupled by the clamp (28). In particular, as shown in FIG. 5, the rotating tube 24 may be formed in an arc shape larger than the fixed tube body 22 so that the tapping chuck 10 may be easily inserted.

By this structure, the rotating tube 24 can be rotated to open the inside, and the tapping chuck 10 can be inserted in the horizontal direction. After the insertion is completed, the rotating tube 24 is closed and the clamp ( 28, it is possible to close the inside by combining the fixed tube 22 and the rotating tube 24.

Therefore, the operation of inserting the tapping chuck 10 in the horizontal direction inside the protective tube 20 can be made quickly and easily. In this case, coupling devices having various structures may be applied instead of the clamp 28.

When the protective tube 20 is divided into the fixed tube 22 and the rotating tube 24 as described above, the replacement protective tube 80 that is replaceably coupled to the protective tube 20 is the protective tube 20. It may be divided into a structure such as, but in this case, since each of the divided protective tube 80 to be coupled to the protective tube 20, the replacement protective tube 80 is formed in an integral tube shape, When the divided protective tube 20 is combined to form a tube shape, it is preferable that the lower portion of the protective tube 20 is replaceably coupled by a coupling means.

6 and 7, the protective pipe 20 may include a plate 50 having a through hole 52 through which the drill 14 passes through the inner lower region of the protective pipe 20. Can be. This diaphragm 50 is for preventing the chip formed by drilling from moving toward the tapping chuck 12. The diaphragm 50 may be formed in a flat or upwardly convex hemispherical shape or downwardly convex hemispherical shape, formed integrally with the protective tube body 20 at a predetermined distance away from the lower end of the protective tube body 20, or manufactured separately. Can be combined.

In particular, when the diaphragm 50 is formed in a hemispherical shape, the chips by drilling can be collected without being dispersed.

Such a diaphragm 50 may be formed or provided in the lower region of the protective tube 20, but is not limited thereto and may be integrally formed in the upper region of the replacement protective tube 80. In this case, since the diaphragm 50 and the replacement protective tube 80 can be replaced, the worker's view can be easily secured.

The magnet attacher 30 is configured and formed to be magnetically attached to the body of the drill machine or to the surface of a metallic machine disposed around the drill machine. The magnet attacher 30 has an on / off function and is configured to generate or dissipate magnetic force by the operation of the magnet switch 32. Therefore, the user can operate the magnet switch 32 to attach the magnet attacher 30 to a metal body or to detach the attached magnet attacher 30.

The connecting member 40 is for connecting the magnet attacher 30 and the protective tube 20 to freely adjust the position or angle of the protective tube 20, and to fix the adjusted position or angle. It is bent, and the bending or bending is configured to be fixed or adjusted so that one end is coupled to the outer surface of the protective tube 20, the other end has a structure that is coupled to the magnet attachment device (30).

As shown in FIG. 1, the connection member 40 includes a first rod 44A having one end coupled to the magnet attacher 30, a second rod 44B having one end coupled to the protective tube 20, and Each other end of the first rod 44A and the second rod 44B is fitted in a different direction, and the fastening member 44C for tightening and fixing the other end of the fitted first rod 44A or the second rod 44B. It is composed of a connector 44D having a). The connecting member 40 of this structure moves the first rod 44A and the second rod 44B fitted to the connector 44D by adjusting the position or angle of the protective tube 20, and then determines the tightening member. Tighten (44C) to fix the adjusted state.

In this case, one end of the second rod 44B may be fixed by welding or the like to the fixing plate fixed by being screwed or riveted to the protective tube 20, or may be directly coupled to the protective tube 20.

On the other hand, as shown in Figure 8 of the accompanying drawings, the connecting member 40 according to another embodiment is composed of a plurality of joints (46A) for connecting so that the multiple bending of the plurality of rods 46, One end of the rod 46 may be configured to be coupled to the magnet attacher 30 by a ball joint 46B. The connecting member 40 of this structure is composed of a plurality of rods 46, joints 46A, and ball joints 46B, so that the free positioning and fixing of the protective tube 20 is possible.

In addition, as shown in FIG. 9 of the accompanying drawings, the connecting member 40 according to another embodiment may be made of a flexible pipe 48 so that bending or bending is free. This flexible pipe 48 is also coupled to the magnet attacher 30 by a ball joint.

Hereinafter, the operation of the present invention will be described.

First, in order to use the safety device for a drill machine according to the present invention, the magnet attacher 30 is attached to the body of the drill machine or a metallic surface of a mechanical device installed in the periphery of the drill machine, and by operating the magnet switch 23, the magnetic force is applied. Allow it to occur and attach.

Subsequently, after deflecting the work bearing (not shown) of the drill machine, the first and second rods 44A and 44B of the connecting member 40 are adjusted to bring the protective tube 20 closer to the tapping chuck 10. Let's do it. Then, the tapping chuck 10 and the drill 14, etc. are inserted into the inside of the protective tube 20 to move the protective tube 20 upward from the bottom, and then the tapping chuck 10 inside the protective tube 20. In this position, by operating the connecting member 40 to fix the position of the protective tube (20). Then, the replacement protective tube 80 is coupled to the lower portion of the protective tube 20.

In this process, the tapping chuck 10, the socket 12, and the drill 14 are positioned in the inner space formed by the protective tube 20 and the replacement protective tube 80 so that they are not exposed to the outside. Therefore, it is possible to prevent a safety accident such as curling of the worker's hand by the rotation of the drill 14.

Then, the operator can remove the magnet attacher 30 from the body of the drill machine only by removing the tapping chuck 10 from the inside of the protective tube 20 and operating the magnet switch 32 to dissipate the magnetic force.

On the other hand, when the protective tube 20 is divided, it is possible to more easily position the tapping chuck 10 inside the protective tube 20. That is, the clamp 24 is opened to rotate the rotating tube 24 to open the inside of the protective tube 20, and by adjusting the connecting member 40, the protective tube 20 is horizontally moved and a tapping chuck therein ( 10) is positioned and then closes the rotating tube 24 to couple the fixed tube 22 and the rotating tube 24, the lower portion of the protective tube 20 formed by the fixed tube 22 and the rotating tube 24 By combining the replacement protective tube 80, the tapping chuck 10 is to be located in the inner space of the protective tube 20 and the replacement protective tube (80).

As the protective tube 20 is divided in this way, the tapping chuck 10 may be positioned inside the protective tube 20 without moving the work support or the tapping chuck 10 of the drill machine.

In addition, when the diaphragm 50 having the through-hole 42 is provided in the inner lower region of the protective tube body 20 or the replacement protective tube body 80, the chip generated by the rotation of the drill 14 is connected to the socket ( 12 is blocked from moving towards the tapping chuck 10. In particular, in the case of the hemispherical shape in which the diaphragm 50 is convex upward, a phenomenon in which chips gather in the diaphragm 50 can be expected.

In addition, when the diaphragm 50 is provided in the protective tube 20, when the protective tube 20 is divided, it is natural that the diaphragm 50 is also divided. This is to facilitate the insertion of the tapping chuck 10 and the like.

10 and 11 are side cross-sectional views showing another embodiment of a safety device for a drill machine according to the present invention.

Safety device for a drill machine according to another embodiment shown in Figures 10 and 11, the lower outer peripheral surface area or the lower end of the protective tube 20 or the lower end of the replacement protective tube 80 in the drilling operation during the drilling operation light It is the same as the above-described embodiment except that the lighting means 60 for irradiation is provided.

The luminaire 60 includes a power supply 62 and a power supply 62 provided on the magnet attachment device 30, the coupling region of the protection tube 20 and the connection member 40, or the outer circumferential surface of the protection tube 20. ), An on / off switch 64 and an LED lamp 66 that emits light by the power supplied from the power supply 62.

At this time, the power supply 62 may be made of a battery provided in the case or may be composed of a wire, AC / DC converter, etc. to receive power from the outside. In this embodiment, the case is composed of a case attached to the outer surface of the protective tube 20 and a battery provided to supply power to the LED lamp 66 by the operation of the off switch 64 provided inside the case. Explain.

In addition, the LED lamp 66 may be replaced by a filament-type bulb, but in this case, since it consumes a lot of power, it is preferable that the LED element is composed of an LED element having low power consumption and good durability. As shown in FIG. 10, the LED lamps 66 may include a cover 61 on a lower outer circumferential surface of the replacement protective tube 80, and a plurality of LED lamps 66 may be installed. It may be attached to the lower end of the replacement protective tube 80 by the attachment member 68 in a state of being electrically connected to the attachment member 68 is arranged at equal intervals.

Thus, the lighting means 60 is provided in the lower region of the replacement protective tube 80, the operator operates the on, off switch 64 when drilling to turn on the LED lamp 66, the illumination of the drilling work position is This ensures the accuracy and safety of the work.

12 is a partially enlarged plan view showing another embodiment of a safety device for a drill machine according to the present invention.

As shown in FIG. 12, the safety device for a drill machine according to another embodiment is a fixed tube instead of a clamp for coupling the fixed tube 22 and the rotating tube 24 of the protective tube 20 divided into 2-3 pieces. Same as the above-described embodiment except that it consists of magnets 29 which magnetically couple 22 to the rotating tube 24. And the handle 27 is provided in the outer peripheral surface of the rotating tube 24. As shown in FIG. The handle 27 is for pulling the rotating tube 24 coupled to the fixed tube 22 by magnetic force. Since the magnets 29 are installed differently in polarity from each other, the hysteresis may be applied by magnetic force when the hysteresis acts so that the magnets 29 do not need to be fixed by the clamping tube 24.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is obvious to those who have. Accordingly, it should be understood that such modifications or alterations should not be understood individually from the technical spirit and viewpoint of the present invention, and that modified embodiments fall within the scope of the claims of the present invention.

10: tapping chuck 12: socket
14 drill 20 protective tube
22: fixed body 24: rotating body
26: hinge 27: handle
28: clamp 29: magnet
30: magnet attachment 32: magnet switch
40: connecting member 44A: first rod
44B: second rod 44C: tightening member
44D: End Connection 46: Rod
46A: Joint 46B: Ball Joint
48: flexible pipe 50: diaphragm
52: through hole 60: lighting means
62: power supply 64: on, off switch
66: LED lamp 68: Attachment member

Claims (14)

It is to prevent the safety accidents occurring during drilling by blocking the tapping chuck, socket and drill of the drill machine from the outside.
Tapping chuck and the socket of the drill machine and a protective tube formed of a transparent material formed in a circular or polygonal tube shape to surround the drill from the outside;
A magnet attacher configured to be magnetically attached to a surface of a metallic machine disposed around or around the drill machine;
A connection member configured to be bent or bent at an intermediate part, to be fixed or adjusted to be bent or bent, one end coupled to an outer surface of the protective tube, and the other end coupled to the magnet attacher; And
It is formed in the form of a circular or polygonal tube of transparent material, and includes a replacement protective tube that is replaceably coupled to the lower region of the protective tube by a coupling means,
Safety device for drill machine. The method of claim 1,
The protective tube,
It is divided into two to three, divided in the longitudinal direction consisting of a fixed tube and a rotating tube having an arcuate or hemispherical cross section,
One side of the fixed tube and the rotating tube is coupled to the hinge, the other side is selectively coupled by a clamp,
Safety device for drill machine. The method of claim 1,
The protective tube,
It is divided into two to three, divided in the longitudinal direction consisting of a fixed tube and a rotating tube having an arcuate or hemispherical cross section,
One side of the fixed tube and the rotating tube is coupled to the hinge, the magnets of different polarities are respectively installed on both sides of the other facing each other are coupled by a magnetic force in close proximity to each other,
The outer surface of the rotating tube is provided with a handle for pulling the rotating tube coupled by the magnets,
Safety device for drill machine. The method according to claim 2 or 3,
The replacement protective tube is formed in the same manner as the protective tube, or is not divided, characterized in that formed integrally,
Safety device for drill machine. The method of claim 1,
Characterized in that the inner lower region of the protective tube is provided with a plate formed with a through hole for passing the drill to block the chip formed by drilling to move toward the tapping chuck,
Safety device for drill machine. The method of claim 5,
The diaphragm is,
It is formed in a flat plate shape or hemispherical projecting convex to the upper or lower, characterized in that formed integrally formed at a predetermined distance away from the lower end portion of the protective tube or separately manufactured,
Safety device for drill machine. The method of claim 5,
The partition is divided into two to three, characterized in that
Safety device for drill machine. The method of claim 1,
The connecting member includes:
A first rod having one end coupled to the magnet attacher;
A second rod having one end coupled to the protective tube; And
Wherein the other end of the first rod and the second rod is coupled in different directions, characterized in that it comprises a connector having a fastening member for tightening and fixing the other end of the first rod or the second rod,
Safety device for drill machine. The method of claim 1,
The connecting member includes:
It consists of a plurality of joints for connecting a plurality of rods to enable multi-fold, one end of the rod is characterized in that coupled to the ball joint to the magnet attacher,
Safety device for drill machine. The method of claim 1,
The connecting member includes:
It is made of a flexible pipe so that bending and bending are free,
Safety device for drill machine. The method of claim 1,
The outer peripheral surface area of the lower end of the protective tube, or the lower outer peripheral surface area or the lower end of the replacement protective tube, characterized in that the illumination means for irradiating light to the drilling position during the drilling operation is provided,
Safety device for drill machine. 12. The method of claim 11,
Wherein the illumination means comprises:
A power supply provided at the magnet attacher, a coupling region of the protective tube and the connection member, or an outer circumferential surface of the protective tube;
An on and off switch provided in the power supply; And
Characterized in that it comprises an LED lamp which is emitted by the power supplied from the power supply,
Safety device for drill machine. The method of claim 12,
The power supply is made of a battery, characterized in that configured to receive power from the outside,
Safety device for drill machine. The method of claim 12,
The LED lamp is electrically connected to the attachment member in the form of a strip, characterized in that attached to the protective tube or replacement protective tube by the attachment member in a state arranged at equal intervals,
Safety device for drill machine.

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