JPH0685709U - Air gun with cover - Google Patents

Abstract

(57) [Summary] [Purpose] Prevents contamination of workpieces and machine bases without scattering chips and cutting oil when removing chips and cutting oil generated during drilling and cutting. And provide an air gun that does not hurt the operator. [Structure] In an air gun 5 that ejects high-pressure air, a substantially umbrella-shaped cover 8 that covers the nozzle 4 is attached to the tip portion.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of an air gun that removes chips and cutting oil that are generated when a hole is drilled in iron material, wood, etc. and that remains in the drill hole.

[0002]

[Prior art]

 Conventionally, an air gun has been used to remove chips, cutting oil, etc. remaining in a drilled hole when drilling a hole in iron material or wood.

As shown in FIG. 6, the air gun 18 has a nozzle 21 detachably attached to the tip of a main body 20 having a handgrip portion 19, and the handgrip portion 19 communicates with the nozzle 21. It has a connection part for connecting the high-pressure hose 22 connected to the air compressor. In addition, the main body 20 is provided with a handle 23 that blows or stops air from the nozzle 21.

[0004]

[Problems to be solved by the device]

 When the drill hole 16 is cleaned using the air gun 18, as shown in FIG. 6, when the tip of the nozzle 21 is directed toward the drill hole 16 and high pressure air is blown, the chips 17 are blown off by the air. , It was protruding from the drill hole 16.

For this reason, the chips 17 ejected from the drill hole 16 are scattered on the surface of the work piece and the circumference of the machine base, contaminating the surface of the work piece and the surroundings of the machine base, and directed toward the worker. There is a problem in that it scatters, stains the clothes of the worker, and scratches the worker.

The present invention has been made in order to eliminate the above-mentioned problems. When cutting chips or cutting oil after drilling or cutting using an air gun, The purpose of the present invention is to provide an air gun that prevents scattering, eliminates contamination of workpieces and machine bases, and does not damage workers.

[0007]

[Means for Solving the Problems]

 The present invention provides an air gun for ejecting high-pressure air, which has a cover having a substantially umbrella-like cover for covering the nozzle at the tip thereof.

[0008]

【Example】

 As shown in FIG. 1, an air gun 5 is formed by detachably attaching a nozzle 4 that ejects high-pressure air to a tip portion 3 of a main body 2 having a handshake portion 1. The air gun 5 is provided with a connecting portion 7 for connecting a high pressure hose 6 for sending high pressure air supplied from an air compressor (not shown).

A substantially umbrella-shaped cover 8 is attached to the tip portion 3 of the air gun 5 formed as described above so as to cover the nozzle 4 to form an air gun with a cover.

As shown in FIG. 2, the cover 8 is formed of a metal plate or a synthetic resin plate, and has a mounting portion 10 having a mounting hole 9 for mounting the air gun 5 on the upper portion, and a skirt extending from the mounting portion 10 above. And a cover portion 11 formed in the shape of, and has a substantially umbrella shape.

The inner diameter D of the mounting hole 9 of the cover 8 differs depending on the mounting position on the air gun 5, but when mounting by the nozzle 4 as shown in FIG. It is formed so that it becomes large. When using other fixing means such as mounting with screws or tightening with a band, the nozzle 4 or the tip of the air gun 5 can be formed to have a diameter substantially the same as or slightly larger than the outer diameter.

The height H of the cover 8 is formed so as to be higher than the length of the nozzle 4 as shown in FIG. 3, but it may be formed low so that the tip of the nozzle 4 protrudes from the cover 8. Noh.

Further, as a method of attaching the cover 8 to the air gun 5, as shown in FIG. 3, when the nozzle 4 is screwed to the tip portion 3 of the air gun 5, it is sandwiched between the nozzle 4 and the tip portion 3. It is also possible to mount the cover 8 by attaching the cover 8 to the cover 8 and attach it to the cover 8 and fix it to the tip portion 3 with a screw through the mounting member.

Further, as shown in FIG. 3, a brim 12 may be integrally provided at the tip of the cover portion 11 to reduce blowing out of cutting chips and cutting oil.

In the above embodiment, the cover 8 was attached to the air gun 5 to prevent scattering of cutting chips and cutting oil. However, as shown in FIG. 4, the cover 8 is provided with a suction port 13 and a suction device (not shown). It is also possible to attach a suction hose 14 connected to the above) to positively remove chips and cutting oil by suction.

Next, a method of removing chips, cutting oil, etc. in the processed hole using the air gun with a cover shown in the above embodiment will be described.

As shown in FIG. 5, when the tip of the nozzle 4 of the air gun with a cover is directed into the drill hole 16 formed in the work piece 15 and the handle 23 is operated with a finger to eject high pressure air, The chips 17 and cutting oil accumulated in the drill hole 16 are blown off by the high pressure air and are ejected onto the surface of the workpiece 15. However, the chips 17 that have jumped out are prevented from being scattered by the cover 8 and do not contaminate the periphery of the machine base or pose a danger to the operator.

Further, as described above, the chips 17 and the cutting oil that have jumped out of the drill hole 16 and adhered onto the workpiece 15 can be removed by wiping with a web.

[0019]

[Effect of device]

 Since the air gun with a cover of the present invention has the above structure, the structure is extremely simple and the handling is extremely easy. Moreover, when cleaning the processed holes with high-pressure air, chips and cutting oil do not scatter, so the surroundings of the machine are not contaminated and the workers are not harmed. In addition, it has an excellent practical effect of being safe.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of an air gun with a cover of the present invention.

FIG. 2 is a cross-sectional view showing an embodiment of a cover used in the air gun with a cover of the present invention.

FIG. 3 is a sectional view of an essential part showing another embodiment of the air gun with a cover of the present invention.

FIG. 4 is a front view showing another embodiment of the air gun with a cover of the present invention.

FIG. 5 is an explanatory view showing a usage state of the air gun with a cover of the present invention.

FIG. 6 is an explanatory view showing a usage state of a conventional air gun.

[Explanation of symbols] 1,19 Handshake part 2,20 Main body 3 Tip part 4,21 Nozzle 5,18 Air gun 6,22 High pressure hose 7 Connection part 8 Cover 9 Mounting hole 10 Mounting part 11 Cover part 12 Collar 13 Suction port 14 Suction hose 15 Workpiece 16 Drill hole 17 Chip 23 Handle

Claims (1)

[Scope of utility model registration request] 1. An air gun for ejecting high-pressure air, comprising a cover having a substantially umbrella-like cover attached to a tip portion thereof to cover the nozzle.