JPH0642119U - Surface mount type dustproof member - Google Patents

Abstract

(57) [Abstract] [Purpose] The complexity of the structure and the bulkiness of the shape are suppressed to prevent the deterioration of the mobility of the cutting tool. [Structure] A tile 4 as a decorative material is attached to a concrete wall surface 2, and a dustproof member 8 for preventing scattering of cutting dust D due to drilling of a drill member 6 is provided on the surface of the tile 4.
Is attached. The dustproof member 8 is a rubber-based cover member 1 having a shape that covers the scattering area of the cutting dust D during cutting.
4, a water-absorbing dust collecting member 16 which is detachably provided on the inner surface of the cover member 14, and a plurality of supporting members 18 which are provided on the outer edge portion of the cover member 14.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a dustproof member used when perforating or grooving concrete, tiles, stones and the like.

[0002]

[Prior art]

 When drilling in concrete, for example, a drilling tool with a cutting blade at the tip is driven to rotate by a drive source such as an electric motor built into the tool body. In order to prevent blade deterioration, a cooling method using mist cooling in the form of spray, which can be air-cooled, water-cooled, or in between, is adopted depending on the operating conditions.

Among the above cooling methods, the water cooling method hardly scatters cutting chips, but its use is regulated at the site where muddy water stains are avoided due to muddyness. This problem can be avoided with the air cooling method or mist cooling method, but since the cutting dust is scattered, in addition to contamination of the work area due to scattering of cutting dust, cutting dust enters the tool body. This causes problems such as early deterioration of the motor, stains on workers' eyes, and stains on clothes.

For this reason, for example, in Japanese Utility Model Laid-Open No. 62-201642, the outer peripheral region of the drill member is covered with a cover member having a structure capable of expanding and contracting in the axial direction, and an air hose is attached to a side portion of the cover member so that the cover member is provided inside the cover member. A structure has been proposed that sucks the cutting chips that have entered.

[0005]

[Problems to be solved by the device]

 By the way, with this type of tool, it is desirable that the incidental equipment for dust prevention or dust collection be as simple and light as possible in order to quickly and easily perform the original purpose of drilling. A device having a suction function requires a dust collector and a compressor, which makes the facility bulky in terms of configuration and cost, and lacks convenience in use, such as the presence of a suction hose impairs mobility.

Therefore, an object of the present invention is to provide a dustproof member that has a simple structure, does not impair the mobility of the tool, is easy to clean, and improves usability.

[0007]

[Means for Solving the Problems]

 This invention was devised to achieve the above-mentioned object, and is characterized by a cover member that has a shape that covers the scattering area of cutting debris around the cutting site at the time of cutting and that has an insertion opening for a drill member. And a support member that is detachably attached to the surface to be cut and that supports the cover member.

Further, a water absorbing dust collecting member may be detachably provided on the inner surface of the cover member so as to have a dust collecting function, or the supporting member may have a sucker function.

Further, it may be configured to include a cylindrical cover portion that covers the outer periphery of the drill member, and a support portion that is detachably attached to the surface to be cut and that is connected to the cover portion.

[0010]

[Action]

 According to this invention, for example, the drill member is inserted into the insertion opening of the cover member, and the cover member is once separated from the surface to be cut such as the tile to perform the initial bite drilling at a predetermined position. After that, the support member is attached to the surface to be cut, the cover member is set in a state of covering the scattering area of the cutting chips, and the holes are drilled. The cutting members are prevented from scattering during drilling by the cover member, and are prevented from scattering to the operator.

Further, in the configuration in which the dust collecting member is detachably provided, the dust collecting member is used by containing water in the case of dry cutting, and is removed and washed with water when the amount of adhering cutting dust increases. To be done. Further, in the case of wet cutting such as mist, the dust collecting member is used in a dry state, and when the amount of cutting chips attached increases, it is similarly cleaned and reused.

Further, in the case of having a cylindrical cover part, the cover part prevents scattering in a direction substantially parallel to the surface to be cut in the initial stage of drilling, and the cutting chips are scattered in the axial direction of the drill member as the drilling progresses. Is stopped by a dustproof member or the like provided on the drill member itself.

[0013]

【Example】

 1 to 3 show an embodiment of the present invention and show an application example to a drilling operation by a mist cooling method. A tile 4 as a decorative material is attached to the concrete wall surface 2, and a dustproof member 8 for preventing scattering of cutting dust D due to drilling of a drill member 6 is attached to the surface of the tile 4.

A columnar bit 12 formed by sintering diamond grains is fixed to the tip of the shank shaft 10 of the drill member 6, and the mist (fog) supplied through the shaft hole of the shank shaft 10 is fixed. Water droplets) are ejected from the slit 12a of the bit 12 to suppress frictional heat during cutting.

The dustproof member 8 is a rubber-based cover member 14 having a shape that covers the scattering area of the cutting dust D at the time of cutting, and a water-absorbing dust collecting member detachably provided on the inner surface of the cover member 14. 16 and a plurality of supporting members 18 provided on the outer edge of the cover member 14 in general.

The cover member 14 shown in this example includes a cover body 20 formed in a bowl shape and a flange portion 22 continuous with the outer edge of the cover body 20. An insertion port 20a for inserting the shank shaft 10 is formed in the central portion of 20. An annular groove 22a for mounting the support member 18 is formed in the flange portion 22, and an annular groove 22b in which the dust collecting member 16 is detachably set is formed inside the flange portion 22. There is.

The dust collecting member 16 is made of a material such as a sponge material, a rubber foam material, or a felt material, and is formed in a bowl shape along the inner surface of the cover main body portion 20. The drill member 6 is fitted in the central portion. A notch 16a is formed for passing in the state.

The support member 18 may be a commercially available suction cup member used in a bathroom or the like, and in this case, the annular groove 22b of the flange portion 22 is determined according to the shape of the head portion 18a thereof. An insertion hole 22c for setting the support member 18 is formed at an appropriate position of the annular groove 22b, and the number of the support members 18 can be arbitrarily changed and can be easily replaced when the suction cup function is deteriorated. It is like this.

Further, in this example, a closing member 24 that closes the gap between the cover member 14 and the support member 18 is provided. The closing member 24 can be formed of the same material as the dust collecting member 16, but the scattering direction of the cutting dust D is substantially parallel to the surface to be cut at the initial stage of drilling, but immediately shifts to a substantially fan-shaped cross section and stabilizes. It is not always necessary. The closing member 24 can be attached to the inner peripheral surface 22d of the flange portion 22 of the cover member 14 by simply fitting or adhering.

Next, the operation of using the dustproof member 8 will be described. First, as shown in FIG. 3, the drill member 6 is inserted through the insertion opening 20a of the cover body 20 and the notch 16a of the dust collecting member 16, and in this state, the dustproof member 8 is attached to the tile 4 as the cut surface. The bit 12 is applied to the perforated portion while being slightly separated from the surface, and the initial biting is visually observed.

After the initial drilling, the driving of the drill member 6 is temporarily stopped, the supporting member 18 is brought into close contact with the surface of the tile 4, and the tile 4 is attached to the surface to be cut as shown in FIG. After this, the drill member 6 is driven again to drill a predetermined depth.

Most of the cutting dust D adheres to the dust collecting member 16. In the case of this example, the dust collecting member 16 is used in a dry state, is removed after the work is finished, is washed with water, and is again mounted in the cover member 14. In the case of air cooling work, the dust collecting member 16 is used in a state of containing water. Although the dustproof function can be obtained only by the cover member 14, by providing the dust collecting member 16, it is possible to prevent dust and the cutting dust D from flowing down at the same time.

Since it is a type to be attached to the surface to be cut, it does not hinder the maneuverability or handleability of the cutting device during work, and does not hinder the handleability when carried.

Next, FIGS. 4 and 5 show another embodiment. The same parts as those in the above example are designated by the same reference numerals. The cover body 20 of the dustproof member 25 has windows 20b, 20b formed on the upper and lower portions for lighting and visual observation, and a hook 26 is attached to each window 20b. Corresponding to this, an engagement piece 28 with which the hook 26 is engaged is attached to the flange portion 22. Further, the dust collecting member 16 is formed with an inner window portion 16b corresponding to the window portion 20b, and the inner window portion 16b is bonded to the inner surface of the window portion 20b.

The operation of using the dustproof member 25 will be described. First, the support member 18 is set in close contact with the surface of the tile 4 and then the drill member 6 is inserted. After that, as shown in FIG. 5, the window 20b is turned over so that it can be seen, and the rear window 20b that has been initially bited and drilled is returned to the original depth to be drilled. In the case of this example, the window portions 20b do not necessarily have to be provided on the upper and lower sides, and the opening range of the window portions 20b is appropriately set within a range in which initial perforation can be visually performed.

Next, FIGS. 6 and 7 show a simple type used in combination with a dustproof or dust collecting member attached to the drilling tool itself. The dustproof member 30 shown in this example includes a cylindrical cover portion 32 that covers the outer peripheral surface of the drill member 6, and a support portion 34 that is integrally connected to the cover portion 32.

The support portion 34 has a suction cup function, and is formed of an annular outer edge 34a and an annular inner edge 34c formed by sandwiching the annular void portion 34b. The cover part 32 and the support part 34 can be integrally formed of a rubber material.

When the dustproof member 30 is attached to the surface of the tile 4, the perforation position can be visually confirmed through the opening 32 a of the cover portion 32, so that the perforation start operation can be easily performed in the attached state. The cover portion 32 prevents the cutting dust D from scattering substantially parallel to the tiles 4 in the initial stage of drilling. Further, the scattering of the cutting waste D in the axial direction of the drill member 6 due to the progress of drilling is prevented by, for example, a bowl-shaped dustproof or dust-collecting cover 38 attached to the tool body 36. The applicant has proposed in Japanese Patent Application No. 4-20599 a dust collecting cover of a type to be attached to the tool body.

In each of the above examples, each component has a specific shape and a specific material, but the present invention is not limited to this, and the design can be changed as appropriate within the range in which the above-described function can be satisfied. . Also, although an example of application to drilling work was shown, it can also be applied to grooving work with a rotary blade.

[0030]

[Effect of device]

 According to this invention, since it can be attached to the surface to be cut and used, it does not hinder maneuverability or handleability of the cutting device when cutting and carrying, and thus it is possible to improve workability.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of a cut surface-mounted dustproof member according to the present invention.

FIG. 2 is an exploded perspective view.

FIG. 3 is a cross-sectional view showing a state when biting is performed in the initial stage of perforation.

FIG. 4 is a sectional view showing another embodiment.

FIG. 5 is a cross-sectional view showing a state when biting at the initial stage of drilling in another embodiment.

FIG. 6 is a schematic cross-sectional view in a usage state of a type used together with a dustproof member attached to a cutting tool.

FIG. 7 is a perspective view of the example shown in FIG.

[Explanation of symbols]

 4 tiles (cutting surface) 6 drill member (cutting member) 14 cover member 16 dust collecting member 18 support member 20a insertion port 32 cover portion 34 support portion D cutting waste

Claims (4)

[Scope of utility model registration request] 1. A cover member having a shape for covering a scattering area of cutting chips around a cutting portion at the time of cutting and having an insertion opening for a drill member, and detachably attached to a surface to be cut to support the cover member. A surface-mounting type dustproof member provided with a supporting member for cutting. 2. The cut surface-mounting type dustproof member according to claim 1, wherein a water absorbing dust collecting member is detachably provided on the inner surface of the cover member. 3. The support member has a suction cup function.
Alternatively, the cut surface-mounting type dustproof member as described in 2 above. 4. A cut surface-mounting type dustproof member comprising a cylindrical cover portion which covers the outer periphery of a drill member, and a support portion which is detachably attached to the cut surface and is provided continuously with the cover portion.