JP2014226567A - Dust removing tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively remove dust by utilizing compressed-air supply equipment installed in a factory or a work place.SOLUTION: A nozzle part of an air gun is extended so that its tip end reaches a floor surface when the air gun is used by a person standing up. The tip end is shaped to have a frame body, and an air ejection port is provided in an inner periphery of the frame body. A dust removing tool is configured to eject compressed-air in high speed from the air ejection port into the frame body and thereby introduce air from the exterior into the frame body for increasing the amount of air.

Description

  The present invention relates to a dust remover that blows off dust by injecting air.

  In factories and workplaces where various machine tools are installed, in order to remove dirt, dust, cutting debris, etc. adhering to the floor and ceiling, etc., compressed air piping, compressors, cylinders, etc. In general, an air gun connected to the air gun is used, and compressed air discharged from the air gun is blown onto an object to be collected in one place and then removed. Specifically, the air gun is held in the hand and the compressed air is discharged toward the floor surface.

  However, a general air gun has a short nozzle at the tip and is straight, and the amount of air that is jetted is small.If the air gun is used while standing on the floor, dust will scatter and stay in one place. There was a problem that it was difficult to collect. Therefore, in order to efficiently collect dust, a method of squatting on the floor and using an air gun, and a method of using a vacuum cleaner having an air injection function at the tip (see Patent Document 1) are known.

JP2012-235863

  However, in the method of squatting down and using an air gun, the amount of air to be injected is small, time is required for work, and the exhaustion of physical strength is severe. In addition, the vacuum cleaner shown in Patent Document 1 can be used while standing, but cannot use the compressed air supply equipment usually in factories or workplaces, and must be equipped with the vacuum cleaner separately. There was a problem in terms of cost.

  Then, this invention aims at providing the dust removal tool which removes the dust in a work place efficiently using the supply equipment of the compressed air equipped in the factory or the work place.

In order to achieve the above object, the dust removing tool according to the first aspect of the present invention extends the nozzle portion of the air gun so that the tip reaches the floor even when a person stands up, and the tip of the nozzle The structure is a frame body, and compressed air is jetted into the frame body at a high speed to induce air from the outside into the frame body to increase the amount of air.
That is, the dust removing tool according to the first aspect of the present invention is a dust removing tool including an air gun and a nozzle attached to the tip of the air gun, and the nozzle is attached to the tip of the air gun and is sent out from the air gun. A pipe that accepts the air and a frame that is connected to the front end of the pipe and has a front opening and a rear opening, and the frame receives the air from the pipe An internal passage, an air discharge port through which air from the internal passage is discharged into the space inside the frame body, and air flow control means for directing the air discharged from the air discharge port toward the front opening surface. It is characterized by having.

  In the dust removing tool according to the first aspect of the present invention, the air sent from the compressed air supply source to the air gun reaches the frame at the tip of the nozzle part through the pipe line of the nozzle part. The air that has reached the frame body is widely filled in the internal passages in the frame body, and then discharged from the air discharge port toward the space inside the frame body. This air forms an air flow toward the front opening surface of the frame body by various air flow control means. Due to the Bernoulli effect by the air flow, a large amount of external air is attracted from the rear opening surface of the frame body to the space inside the frame body. As a result, the air from the air discharge port and the air attracted from the outside are united and injected from the front opening surface of the frame toward the object.

  In the dust removing tool according to the second aspect of the present invention, the air flow control means of the dust removing tool according to the first aspect of the present invention is configured by a Coanda surface formed from the air discharge port toward the front opening surface. It is characterized by being. Thereby, the air discharged | emitted from the air discharge port forms an air flow along the said Coanda surface by the Coanda effect, and is injected toward the target object from the said front opening surface of the said frame. At this time, external air is attracted to the internal space of the frame from the rear opening surface of the frame, as in the first aspect of the present invention.

  A dust remover according to a third aspect of the present invention is the slot-shaped guide path in which the air flow control means of the dust remover according to the first aspect of the present invention is connected to the air flow discharge port. The leading end of the guide path is configured to face the front opening surface. According to a third aspect of the present invention, the air filled in the internal passage flows through the air discharge port to the slot-shaped guide path connected to the air discharge port, and the slot-shaped guide path A thin strip-shaped air flow is formed along the upper wall surface inside the frame body from the front end of the frame. And this air is injected toward a target object from the said front opening surface of the said frame. At this time, external air is attracted to the internal space of the frame from the rear opening surface of the frame, as in the first and second aspects of the present invention.

  The dust removing tool according to a fourth aspect of the present invention is characterized in that the bottom of the frame of the dust removing tool according to the first, second and third aspects of the present invention is planar. Since the bottom of the dust removing tool is flat, it can be used close to the floor or ceiling surface, and when not in use, the dust removing tool can be stored on the floor.

  According to the fifth aspect of the present invention, dust adhering to the floor surface can be removed while an adult is standing, and dust adhering to the ceiling can be removed without using a stepladder.

  According to the first aspect of the present invention, dust adhering to the floor surface or ceiling surface can be easily removed without bending over or using a stepladder, and with an air volume higher than the supplied compressed air. Dust can be removed efficiently.

  According to the second aspect of the present invention, air can be injected onto the object with a simple structure by utilizing the Coanda effect.

  According to the third aspect of the present invention, air can be accurately injected onto an object.

  According to the fourth aspect of the present invention, air can be jetted along the floor or ceiling surface, and the dust remover of the present invention can be stored on the floor.

  According to the fifth aspect of the present invention, dust adhering to the floor surface can be removed while an adult is standing, and dust adhering to the ceiling can be removed without using a stepladder.

The whole figure of the dust removal tool which shows the embodiment of the present invention The whole figure of the dust removal tool which shows the embodiment of the present invention 1 is a cross-sectional view taken along the line AA in FIG. 1 showing the first embodiment of the frame. 1 is a cross-sectional view taken along the line BB in FIG. 1 showing a first embodiment of the frame. 1 is a cross-sectional view taken along line AA in FIG. 1 showing a second embodiment of the frame. 1 is a cross-sectional view taken along the line BB in FIG.

Embodiments of the present invention will be described below with reference to the drawings.
1 and 2 show an embodiment of the present invention.
As shown in FIGS. 1 and 2, the dust removing tool of the present invention includes an air gun 1, a pipe line 2, and a frame 3.
The air gun 1 has a pistol type, and is connected to a compressed air supply facility in a factory or work place to receive compressed air.
The compressed air supplied to the air gun 1 is supplied to the frame 3 through a pipe line 2 connected to the tip of the air gun 1.
The compressed air supplied to the frame 3 flows from the internal passage 4 to the air outlet as will be described later, and is jetted from the front opening surface 8 of the frame 3 toward the object by the air flow control means.

  In FIG. 1, the outer shape of the frame body 3 is a rectangular parallelepiped shape. In FIG. 2, the outer shape of the frame body 3 is a cylindrical shape, but the shape of the frame body is not limited as long as the frame body can be formed.

The flow of air in the frame 3 will be described using examples.
(Example 1)
FIG. 3 is an AA cross-sectional view according to the first embodiment of the frame 3 in FIG.
FIG. 3 is a cross-sectional view at a connection point between the pipe line 2 and the frame body 3, and compressed air supplied from the pipe line 2 passes through an internal passage 4 provided in the structure body of the frame body 3. 5 is supplied. An air flow control Coanda surface 7 is formed at the edge of the air discharge port 5 from the edge of the air discharge port 5 in the direction of the front opening of the frame body 3. After flowing along the flow control Coanda surface 7, it reaches the front opening surface 8 over the inner upper surface wall of the frame body, and is discharged from the frame body 3 toward the object.

  At this time, external air is guided from the rear opening surface 9 of the frame body 3 to the internal space of the frame body 3 by the Bernoulli effect due to the air flow flowing along the inner upper surface wall of the frame body, as indicated by a chain line. This induced air is jetted onto the object together with the air discharged from the air discharge port 5.

  FIG. 4 is a cross-sectional view of the frame 3 taken along the line BB. That is, it is a cross-sectional view showing the end of the internal passage 4, and shows how the compressed air supplied from the pipe line 2 to the frame 3 reaches the end of the air discharge port 5 through the internal passage 4. Yes. The subsequent flow of the air discharged from the air discharge port 5 to the inside of the frame 3 is the same as that described with reference to FIG.

(Example 2)
Another embodiment of the present invention will be described with reference to FIGS. FIG. 5 is a cross-sectional view of the frame 3 in FIG.
The flow of compressed air supplied from the pipe line 2 to the air discharge port 5 is the same as that described in FIG. The air discharged from the air discharge port 5 passes through the air flow control slot 6 provided subsequent to the air discharge port 5 and is discharged into the frame body in a thin band shape. The discharged strip-shaped air flows as it is along the inner upper wall of the frame 3 to the front opening surface 8 and is then jetted toward the object.

  At this time, air is guided from the outside of the frame body 3 to the inside of the frame body 3 by the Bernoulli effect by the air flow flowing along the upper wall inside the frame body, as indicated by a chain line. The air guided to the inside of the frame is integrated with the air discharged from the air discharge port 5 and is jetted from the front opening surface 8 toward the object.

  6 is a cross-sectional view taken along the line B-B according to the second embodiment of the present invention in FIG. Up to the end of the internal passage 4 is shown. The compressed air filled up to the end of the internal passage 4 flows into the air flow control slot 6 through the air discharge port 5, and then is discharged into the frame 3. The subsequent flow of the released compressed air and the external air induced in the frame 3 by the Bernoulli effect is the same as in the first embodiment.

  In the embodiment of the present invention, the length of the pipe line 2 is preferably 90 cm to 100 cm. When the length of the conduit 2 is about this, the frame 3 can be brought close to the floor surface while an adult is standing, and the frame 3 can be brought close to the ceiling without using a stepladder.

  In each embodiment of the present invention, the air outlet 5 is preferably in the form of a slit, and preferably has a width in the range of 0.1 mm to 1 mm.

  As described above, the dust remover according to the present invention removes dust on the floor surface or ceiling surface easily while standing using the compressed air supply facility installed in the factory or work place. It is extremely useful as something that can be done.

DESCRIPTION OF SYMBOLS 1 Air gun 2 Pipe line 3 Frame 4 Internal passage 5 Air discharge port 6 Air flow control slot 7 Air flow control Coanda surface 8 Front opening surface 9 Rear opening surface

Claims (5)

A dust removing tool comprising an air gun and a nozzle attached to the tip of the air gun, wherein the nozzle is attached to the tip of the air gun, and a pipe line for receiving air sent from the air gun, and a tip of the pipe line A frame having a front opening surface and a rear opening surface connected in the front-rear direction. The frame includes an internal passage that receives the air from the conduit, and the air from the internal passage is in the frame. A dust removing tool comprising: an air discharge port that is discharged into an internal space of the body; and an air flow control unit that directs the air discharged from the air discharge port toward the front opening surface. 2. The dust removing tool according to claim 1, wherein the air flow control means is configured by a Coanda surface formed from the air discharge port toward the front opening surface. The air flow control means is a slot-shaped guide path connected to the air flow discharge port, and a tip of the slot-shaped guide path is configured to face the front opening surface. The dust remover according to claim 1. The dust removing tool according to claim 1, wherein a bottom portion of the frame body is planar. The dust removing tool according to claim 1, wherein a length of the conduit is 90 cm to 100 cm.