Drill device and drilling device

Abstract

To provide a drill device and a drilling device capable of easily removing dust remaining on the peripheral wall of a drilled hole.SOLUTION: The drill device 5 is provided with a shank 10 and a body 15, and a brush 30 for removing dust remaining on a hole wall surface H2 after drilling is provided on a tip part 15A of a cutting edge 16 of the body 15.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a drilling device and a hole-making device. [Background technology]

[0002] Patent Document 1 discloses an electric drilling device that includes an electric drill with a drilling device attached to the tip of a shaft, a cylindrical body that covers the shaft and can move up and down, and a suction device connected to the cylindrical body. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-129913 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in Patent Document 1, when performing work such as drilling holes in a concrete deck, filling the holes with repair material, allowing it to penetrate into cracks and harden, dust remaining on the walls around the holes must be removed, which poses a problem of long work hours. SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a drilling device or a drilling machine that can easily remove dust remaining on the peripheral wall of a drilled hole. [Means for solving the problem]

[0005] One aspect of the drilling device of the present invention comprises a shank and a body, and a brush is provided at the tip of the cutting edge of the body to remove dust remaining on the wall surface of the hole after drilling.

[0006] One aspect of the drilling device of the present invention comprises the drill device according to any one of claims 1 to 5 at the tip of a shaft. [Effects of the Invention]

[0007] According to the present invention, dust remaining on the peripheral wall of a hole after drilling can be easily removed. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a schematic diagram showing a drilling device and a vacuum cleaner. [Figure 2] FIG. [Figure 3] FIG. 2 is an enlarged view of the tip of the drilling device. [Figure 4] FIG. 10 is an enlarged view of a tip portion of a drilling device according to another embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] (Embodiment 1) 1 is a schematic diagram showing a drilling device 1 and a vacuum cleaner 2. FIG. 2 is a plan view showing a drilling device 5.

[0010] The drilling device 1 includes a housing 3, a chuck 4 provided at the tip of the housing 3, and a drill device 5 provided via the chuck 4.

[0011] The housing 3 contains a motor that rotates the drilling device 5 and a vibration unit that impacts the drilling device 5.

[0012] The drilling device 1 includes a handle 6, a switch 8 provided on the handle 6, and a sub-handle 7.

[0013] An operator P holds the drilling device 1 by gripping the handle 6 with one hand and the sub-handle 7 with the other. When a switch 8 is pressed, the drill device 5 is driven to rotate and impact. The drilling device 1 is a so-called hammer drill, and is capable of drilling holes in hard materials such as concrete slabs H.

[0014] A swivel device 11 is provided to cover a shank 10 that constitutes the upper part of the drilling device 5. The drilling device 5 is rotatable independently of the swivel device 11.

[0015] The swivel device 11 is connected to the vacuum cleaner 2 carried on the back of the worker P by a connection pipe 12. The connection pipe 12 is made of flexible resin, rubber, or the like.

[0016] 2, the drilling device 5 includes a shank 10 and a body 15. The shank 10 is connected to the chuck 4 of the drilling device 1 described above.

[0017] The body 15 is formed with a cutting edge 16 and a bit 17 at the tip.

[0018] The bit 17 strikes the concrete floor slab, and the cutting edge 16 cuts the concrete floor slab, thereby drilling a hole in the concrete floor slab H.

[0019] FIG. 3 is an enlarged view of the tip 15A of the drilling device 5. As shown in FIG.

[0020] 2 and 3, a plurality of brushes 30 are provided on the tip 15A of the cutting edge 16. The brushes 30 are made of, for example, resin. However, the brushes 30 may also be made of metal, such as piano wire.

[0021] The brush 30 is clamped and bound within a hollow metal sleeve 31. The sleeve 31 is welded to the tip 15A of the cutting edge 16. The sleeve 31 is welded to a recess in the cutting edge 16 and is provided so that it does not protrude from the cutting edge 16. This prevents the cutting edge 16 from interfering with cutting of the concrete slab H. The brush 30 is inserted into the hollow sleeve 31, and the sleeve 31 is crushed and deformed, thereby clamping and binding the brush 30.

[0022] The brush 30 is provided so as to extend beyond both ends of the sleeve 31. Because the brush 30 is provided so as to extend beyond the cutting edge 16, the hole wall surface H2 of the concrete slab H is scraped by the brush 30 during drilling. The length of the brush 30 can be changed as appropriate as long as it extends beyond the cutting edge 16.

[0023] In particular, dust tends to accumulate in the cracks H3 exposed in the hole H1. If dust accumulates in the cracks H3, it may prevent the repair material from penetrating into the cracks H3. The brush 30 penetrates and scrubs the hole wall surface H2, particularly the entrance to the cracks H3, so that dust remaining in the cracks H3 is removed in a sweeping motion. This makes it easier for the repair material to penetrate into the cracks H3.

[0024] Hereinafter, with reference to FIG. 2, the operation of collecting dust generated during drilling will be described.

[0025] An opening 32 is formed in the tip 15A of the cutting edge 16 of the body 15. The opening 32 communicates with a communication hole 33 that passes through the body 15 in the axial direction and communicates with an opening 34 in the outer peripheral wall of the shank 10.

[0026] When the vacuum cleaner 2 is driven, dust generated during the drilling process is sucked through the opening 32, into the communication hole 33, and then into the outer peripheral wall opening 34. Because the shank 10 is covered by the swivel device 11, the dust passes through the inside of the swivel device 11 and is sucked toward the connecting pipe 12 of the vacuum cleaner 2. The brush 30 removes the dust by rubbing against the hole wall surface H2, further improving the efficiency of dust suction.

[0027] As described above, the drilling device 5 in this embodiment has a shank 10 and a body 15, and a brush 30 is provided at the tip 15A of the cutting edge 16 of the body 15 to remove dust remaining on the hole wall surface H2 after drilling. According to this configuration, dust remaining on the hole wall surface H2 of the drilled hole H1 and in the cracks H3 can be easily removed.

[0028] In addition, the drilling device 5 has a plurality of brushes 30 bound together by a sleeve 31, and the sleeve 31 is joined to the tip 15A of the cutting edge 16 of the body 15. According to this configuration, any metal drilling device 5 can be provided with a brush 30 made of any material, improving versatility.

[0029] The drilling device 5 also has a communication hole 33 that opens at the tip 15A of the cutting edge 16 of the body 15, penetrates the body 15 in the axial direction, and communicates with the outer wall opening 34 of the shank 10, and is configured to be able to absorb dust remaining on the hole wall surface H2 after drilling through the outer wall opening 34. According to this configuration, the dust swept by the brush 30 is efficiently sucked up.

[0030] The drilling device 5 is used to drill holes in the concrete floor slab H. When repairing a crack H3 that has occurred in a concrete slab H, a hole H1 is drilled using a drilling device 1 up to the location of the crack H3 in the concrete slab H. The location and depth of the crack H3 in the concrete slab H are determined through a prior investigation. Multiple holes H1 are drilled in the concrete slab H. Repair material is then poured into each hole H1. To make it easier for the repair material filled in the hole H1 to penetrate into the crack H3, it is necessary to remove shavings from the concrete slab H, and a brush 30 can efficiently remove dust remaining on the hole wall surface H2 of the hole H1. After the hole H1 is filled with the repair material, a reinforcing bar is inserted into the hole H1. Fiber, stone powder, etc. are also added to the repair material.

[0031] The drilling device 1 also includes a drilling device 5 connected to the chuck 4 . This configuration provides the same functions and effects as those described above.

[0032] (Other embodiments) FIG. 4 is an enlarged view of a tip portion 15A of a drilling device 5 according to another embodiment. In another embodiment, the sleeve 31 is passed through and joined to the tip 15A of the cutting edge 16 of the body 15. A hole is formed in the tip 15A in a direction substantially perpendicular to the axial direction of the body 15 so as not to overlap with the communicating hole 33, and the sleeve 31 is inserted into and joined to the hole.

[0033] As described above, in the drilling device 5 according to another embodiment, the brushes 30 are bound together by the sleeve 31, and the sleeve 31 is passed through and joined to the tip 15A of the cutting edge 16 of the body 15. According to this configuration, any metal drilling device 5 can be provided with a brush 30 made of any material, improving versatility.

[0034] Although the present invention has been described above based on the first embodiment and other embodiments, the present invention is not limited to these. The hole drilling device 1 can be modified as needed depending on the application. For example, the hole drilling device 1 and the vacuum cleaner 2 may be integrated into one unit. The dimensions of the drilling device 5 and the shape of the cutting edge 16 are not particularly limited and can be changed as appropriate. [Explanation of symbols]

[0035] 1. Drilling equipment 2 Vacuum cleaner 3. Housing 4. Chuck 5 Drilling equipment 10 shank 15 Body 15A tip 16 cutting edge 17 Bid 30 brushes 31 Sleeve 32 Aperture 33 Communication hole 34 Outer wall opening H Concrete deck H1 hole H2 hole wall H3 Crack P worker

Claims

1. Equipped with a shank and body, A brush is provided at the tip of the cutting edge of the body to remove dust remaining on the hole wall surface after drilling. Drilling equipment.

2. A plurality of the brushes are bound together by a sleeve, The sleeve is joined to the tip of the cutting edge of the body.

2. The drilling device of claim 1.

3. A plurality of the brushes are bound together by a sleeve, The sleeve is passed through and joined to the tip of the cutting edge of the body.

2. The drilling device of claim 1.

4. A communication hole is provided which opens at the tip of the cutting edge of the body, penetrates the body in the axial direction, and communicates with an outer peripheral wall opening of the shank, and is formed so that dust remaining on the hole wall surface after drilling can be absorbed through the outer peripheral wall opening.

2. The drilling device of claim 1.

5. Used for drilling holes in concrete slabs, A drilling device according to any one of claims 1 to 4.

6. A drilling device according to any one of claims 1 to 5, connected to a chuck. Drilling equipment.

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