KR101839800B1 - Dust removing apparatus for outdoor - Google Patents

Abstract

According to the present invention, an outdoor dust removing apparatus is provided to an entrance at an outdoor side of a building. For example, when the outdoor dust removing apparatus is installed in a school, dozens of students can use the outdoor dust removing apparatus during a break about 10 minutes. Therefore, according to the present invention, the outdoor dust removing apparatus comprises a panel of which both side ends are bent forwards for a front surface to be concave, a support, a plurality of air injection nozzles, an air blowing means, and an air injection hose. According to the present invention, a conversion ratio of the outdoor dust removing apparatus is rapid, and the outdoor dust removing apparatus can be used by many people at the same time. Therefore, many people can use the outdoor dust removing apparatus in a short time, and the outdoor dust removing apparatus can be manufactured to be simple and compact to reduce production costs and provide the beauty to a user with a curved line of the outdoor dust removing apparatus.

Description

{DUST REMOVING APPARATUS FOR OUTDOOR}

The present invention relates to a dust separator for outdoor use.

More particularly, the present invention relates to a dust separating apparatus for efficiently removing dust, dirt, and the like accumulated in clothing, a body, and the like in a short time by simply being provided at the entrance of a building such as a school.

The contents described in this section merely provide background information on the embodiment of the present invention and do not constitute the prior art.

The indoor air may be contaminated by the dirt introduced into the room after the outdoor physical activity of the school. In particular, there is a need to prevent the inflow of contaminants such as dust and soil into the room due to the increase of fine dust recently. In particular, there is a problem that adverse effects are exerted on infants, children, elderly people and the like who have weak immunity, resulting in deterioration of the individual's health.

Therefore, air purifiers that purify fine dust are often provided, and it is recommended that clothes and dust adhered to the bag are shaved off before entering the room.

[0005] As disclosed in Patent Document 1, there has been proposed a dust removing apparatus which is installed at a doorway of a building such as an apartment or a kindergarten to remove dust from clothing, shoes, and body parts in advance to create a pleasant indoor environment.

However, such a conventional technique is troublesome to use because it is manufactured in the form of a closed booth in every direction, the door must be opened, the dust must be removed from the door, and the door must be made to pass through. There is a problem that it is complicated.

In addition, since power is wasted due to batch injection without consideration of the shape of the subject, the conversion rate is low, so that it is not possible for many people to use it quickly, and it is impossible to use at the same time.

Registered patent publication registration number "10-1636007 "," dust removal device &

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above problems, and it is an object of the present invention to provide a structure of an outdoor dust separator which is fast, efficient and economical so that many people can quickly use the dust separator.

In addition, the outdoor dust separator according to the present invention provides a simple structure for enhancing the convenience and economical efficiency of the user, operates within a necessary range, and provides a sterilizing function.

According to an aspect of the present invention, there is provided an outdoor dust separator,

And a plurality of air injection nozzles provided so as to penetrate the panel, a blowing means for supplying air, and a pair of air blowing means for blowing air, one end of which is bent toward the front to form a concave surface, And an air injection hose connected to the nozzle and the other end connected to the blowing means.

Therefore, by using an open, curved panel, a large number of people can be used within a short time, electric energy can be saved, and furthermore, such a structure can be manufactured in a simple form, thereby contributing to reduction in production cost, Provide a sense of aesthetics to the user.

The dust separator for outdoor use according to the present invention includes a panel, a pedestal connected to a lower front surface of the panel, a plurality of air injection nozzles installed to penetrate the panel, a plurality of air injection nozzles And a blowing means connected to the communication hole to supply air to the communication hole to blow air from the air injection nozzle.

When air is supplied to the air injection nozzle with such a configuration, a separate connecting hose is not used. Therefore, the configuration is very simple, and it is possible to manufacture compactly, the hose on the rear surface of the panel is not exposed, You do not have to worry about getting hurt or hurt by hose. Further, it is not necessary to provide a separate lid for embedding the hose.

According to an embodiment of the present invention, there is provided an apparatus for measuring the elongation of a subject, which is provided at one side of the panel and measures the elongation of the subject, so that air is ejected only from nozzles that can effectively remove dust according to the elongation and posture of the subject. And a control unit for controlling a valve for opening and closing the flow path of the air blowing unit or the air injection nozzle by receiving a signal output from the extension measurement sensor and controlling the air injection range, Therefore, unnecessary electric power is not consumed and the economical efficiency can be increased.

As another embodiment, a valve that opens and closes the flow path of the blowing means or the air injection nozzle so that air is injected from only the centralized injection switch installed at one side of the outdoor dust separator and only a part of the nozzles set at the operation of the centralized injection switch Therefore, it is possible to maximize the convenience of the user, to effectively spray the necessary parts, and to limit the spraying range, thereby saving the electric energy and economizing.

In another embodiment, a disinfectant tank, a pump connected at one end to the disinfectant tank, a vaporizer connected at the other end of the pump, a disinfectant spray nozzle installed so as to penetrate the panel, A sterilizing liquid spray nozzle connected to the spray nozzle and connected at the other end to the vaporizing portion, a disinfecting switch for operating the pump, and a disinfectant spray nozzle for spraying a vaporized disinfectant liquid at the time of operating the disinfecting switch or air- And a control unit for controlling the valve for opening and closing the flow path of the flow path. Therefore, it is possible to remove bacteria and deodorant with the removal of dust, thereby further improving personal hygiene and indoor environment.

In another embodiment of the present invention, there is provided a method of controlling a dust separating apparatus, comprising: a weight detecting sensor provided on an upper surface of a pedestal; and a controller for receiving a signal output from the weight detecting sensor, And a control unit for turning on and off the display unit. Therefore, since the subject is placed on the pedestal for shaking off dust, it does not require any additional work, so that it can be conveniently used to remove dust, and the conversion rate is fast when used by many people, and unnecessary operation is not performed.

The outdoor dust separator may have the functions described in parallel and may operate on one subject. In addition, a plurality of dust separators may be connected in parallel by one of the blower and the controller have.

In addition, the pedestal and the panel have a size set so that a plurality of subjects can be positioned, and a plurality of weight detection sensors are installed in a row in a set interval, and the control unit receives signals output from the plurality of weight detection sensors The air blowing means corresponding to each weight detection sensor or the valve for opening and closing the air injection nozzle may be controlled to adjust the air injection range so that air is injected only to the portion where the subject is located.

Accordingly, since a plurality of subjects can be located, it is economical because a plurality of people can use at the same time and many people can be used in a short time and at the same time unnecessary operation is not performed.

INDUSTRIAL APPLICABILITY The dust separator for outdoor use according to the present invention has a high conversion rate and can be used by a plurality of people at the same time, so that a large number of people can be used in a short time and can be manufactured in a simple and compact form, Provide a sense of beauty.

In addition, it is equipped with centralized spraying and disinfection functions, which makes it more convenient for user convenience, personal hygiene and indoor environment improvement.

In addition, the sensor is used to effectively spray the necessary parts, minimizing unnecessary operation and thus being economical.

1 is a perspective view of an outdoor dust separator of the present invention.
2 is a side cross-sectional view of the present invention including an air injection hose.
3 is a side cross-sectional view of the present invention having a cover on the back of the panel.
4 is a perspective view showing an embodiment of the present invention.
5 is a side cross-sectional view of the present invention with a disinfection unit.
6 is a cross-sectional view showing the vaporizing section of FIG.
7 is a perspective view showing another embodiment of the present invention.
8 is a perspective view showing another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The sizes and shapes of the components shown in the drawings may be exaggerated for clarity and convenience. In addition, terms specifically defined in consideration of the constitution and operation of the present invention are only for explaining the embodiments of the present invention, and do not limit the scope of the present invention.

It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are shown in different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

1 to 3, the dust separator for outdoor use according to the present invention comprises a panel 10 having both side ends bent forward to concave the surface, a pedestal 20 connected to the lower front of the panel 10, A plurality of air injection nozzles 30 installed so as to penetrate the panel 10, air blowing means 40 for supplying air and one end connected to the air injection nozzle 30 and the other end connected to the blowing means 40 And an air injection hose 50 connected thereto.

The object of the present invention is to enable a plurality of objects to be used outdoors, and it is general that the objects are briefly provided outside the entrance of a building. Therefore, it is formed as an open type rather than a closed booth type in order to save the use time and to be easily available.

In addition, the conventional dirt separating device which closes the door or blocks all sides with a curtain removes dust from the closed space, and therefore, a contaminated air suction device should be separately included. On the other hand, the dust separating apparatus provided with the curved panel 10 for outdoor use according to the present invention is an open type, and it is possible to omit troublesome work such as closing the door or hitting the curtains before and after the dust removing operation . Therefore, the use conversion rate is very fast.

In addition, both ends are bent forward, and the panel 10 having a concave front surface is used for efficient injection. Dust on the front and side of the subject can be intensively removed at the same time owing to the front structure of the panel 10, so that unnecessary air can be prevented from being injected, thereby saving power and time.

Therefore, by using the open, curved panel 10, many people can be used in a short time, electric energy can be saved, and furthermore, such a structure can be manufactured in a simple form, It is made up of curves to provide a sense of aesthetics to the user.

The pedestal (20) of the present invention is for preventing the panel (10) from falling. Accordingly, the panel 10 may be fixed to a wall surface by a bracket or the like, or may be installed by hanging it on a wall surface or by attaching a support leg to the wall surface.

In addition, the object can be displayed in an identifiable position at a suitable position where the subject is positioned on the pedestal 20 so as to be efficiently used. In addition, a part or all of the pedestal 20 may be inclined so that a person wearing a load or a wheelchair put on a cart can be used.

The blowing means 40 of the present invention is generally used for supplying air to be jetted from a nozzle, and uses a known blowing device such as a turbo blowing fan or a compressor. The blowing means 40 includes all the ducts for driving the blowing device do.

The blowing means 40 may be formed on the outside of the main body made up of the pedestal 20 and the panel 10 and may be formed on the inside of the pedestal 20 or the housing 10 (See Fig. 4).

In addition, air can be supplied to the air injection nozzle 30 by using one blowing means 40, and air can be supplied independently to a part of the nozzles connected by the hose by using a plurality of blowing means 40 It is possible. When the plurality of the blowing means 40 is used, the operation range of the blowing means 40 can be turned on and off to control the spraying range by the following sensors.

A plurality of the air injection nozzles 30 of the present invention are installed in the front panel 10 and the plurality of air injection nozzles 30 may be installed in any distribution, Since a person is mainly a subject, it may be formed in consideration of a human body shape. Or may be installed centrally in the central portion of the panel 10 (see Fig. 4) or intensively on the side portion.

The injection intensity can be varied by adjusting the diameter of the nozzle or the pressure of the air supplied to the nozzle so that the front surface of the subject is weak and both sides are hard, and the lower part where the feet of the person or the legs of the subject are located is strongly injected.

Further, the direction of the nozzles may be set so that air is jetted from the upper part to the lower part, and the direction of the nozzles may be set differently for each part of the panel 10. [

The air injection hose 50 uses a known hose to connect the nozzle and the blowing means 40. The diameters of the air injection hoses 50 may be different from each other in order to vary the injection intensity for each nozzle.

 As shown in FIGS. 4 and 8, it is possible to install a freshly or eaves-shaped roof 70 on the upper part to prevent the dust separator from being contaminated by fallen leaves or the like and to avoid the rain. The roof 70 may be formed integrally with the panel 10, or it may be manufactured separately and coupled to the panel 10.

In one embodiment, the roof 70 may be provided with an extended shape of the front panel 10 as a nozzle. In this case, it is effective to prevent floating of dust and to remove dust.

3, the outdoor dust separator of the present invention includes a panel 10, a pedestal 20 connected to the lower front of the panel 10, a plurality of air A cover 60 including a communication hole 61 formed at one side of the panel 10 and coupled to the rear surface of the panel 10 to cover the plurality of air injection nozzles 30, And air blowing means 40 connected to the hole 61 to supply air to the communication hole 61 so that air is jetted from the air injection nozzle 30. That is, a hollow formed between the panel 10 and the cover 60 can be used as a flow path without using a hose connecting the nozzle and the blowing means 40.

The cover 60 is coupled to the rear surface of the panel 10 of the conventional dust separator provided with the nozzles and is tightly coupled with the panel 10 to prevent air from leaking. To this end, the elastic member may be coupled with a seal member or may be sealed with a material such as silicone.

And a communication hole 61 is formed at a side connected to the blowing means 40 and is connected to the blowing means 40. [

When air is supplied to the air injection nozzle with such a configuration, since a separate connection hose is not used, the structure is very simple, and the hose on the rear surface of the panel 10 is not exposed, Good, kids and pets can not get hurt and get hurt or hose damage. Further, it is not necessary to provide a separate lid for embedding the hose.

The following description is based on Fig.

In an embodiment of the present invention, an elongation measuring sensor 100 (see FIG. 1) installed at one side of the panel 10 for measuring the elongation of the subject so that air can be ejected only from nozzles that can effectively remove dust according to the elongation and posture of the subject And a controller for controlling the air blowing range by controlling valves for opening and closing the flow paths of the air blowing means 40 or the air blowing nozzles 30 by receiving signals output from the elongation measuring sensor 100 have.

The elongation measuring sensor 100 can measure elongation by mounting one sensor on the front surface of the panel 10 and a plurality of sensors arranged in the longitudinal direction can horizontally transmit signals as shown in FIG. It can also be measured. When the sensor is sensed by one sensor, it is preferable that the sensor is installed on the upper part of the device.

The elongation measuring sensor 100 uses a known technique such as infrared or ultrasonic waves, and a plurality of means may be used in parallel.

When the elongation measurement sensor 100 measures elongation of the subject and outputs the resultant value, the control unit receives the output signal and adjusts the air injection range so as not to inject air from nozzles higher than the elongation. A plurality of blowing means 40 are provided and the nozzles of the front panel 10 are divided in the lateral direction and the blowing means 40 is connected to the divided nozzles in correspondence with each other, 40 can be controlled by operating the switch 40. [ Alternatively, the spraying direction of the upper nozzle can be adjusted up and down. In the case of a small-length subject, the spraying direction can be controlled to be downward, and in the case of a large elongated subject, .

When the air spray nozzle 30 is installed on the roof 70 when the spray range is adjusted according to the elongation, the nozzle installed on the roof 70 can be configured to inject air irrespective of elongation. In this case, it is easy to remove the dust on the upper surface of the subject, and since the dust is dropped in the lower direction, there is an effect of preventing re-contamination due to dust floating.

In addition, in one embodiment, since the extension sensor 100 can detect that the subject is located within the operation range of the apparatus, the controller receives the signal output from the extension measurement sensor 100, The operation of the dust separating apparatus 40 and the dust separating apparatus can be turned on and off.

Therefore, it is possible to inject air only in a necessary range, so unnecessary electric power is not consumed and the economical efficiency can be increased.

In another embodiment of the present invention, the centralized injection switch 300 installed on one side of the outdoor type dust separating apparatus and the blowing means 40 Or a valve for opening and closing a flow path of the air injection nozzle 30. [

The centralized injection switch 300 may be provided at one side of the outdoor dust separator for operating air to be sprayed only from a nozzle installed in a specific range of the panel 10. [ So that the air can be sprayed only at a desired height or sprayed only on the faces, hands, and feet where dust may be adhered to the front panel 10. can do. At this time, in order to concentrate on the part related to the elongation such as the face and the hand, using the above-mentioned elongation measurement sensor 100, it is recognized that the height of the face and the hand position are located in the middle of the height . Since the feet are normally located on the upper surface of the pedestal 20, the lower nozzle range can be actuated to perform centralized injection.

By having the concentrated injection function, it is possible to maximize user convenience, to effectively spray the necessary part, and to limit the spraying range, thus saving the electric energy and economizing.

As shown in FIG. 4, in another embodiment of the present invention, the sterilizing unit 400 may further include a disinfection unit 400 on one side of the outdoor dust separator so as to have a sterilizing function for eliminating bacteria and odors.

The disinfection unit 400 includes a disinfectant tank 410, a pump 420 connected to the disinfectant tank 410 at one end thereof, a vaporizer 430 connected to the other end of the pump 420, A disinfectant spray nozzle 450 having a disinfectant spray nozzle 440 connected to the disinfectant spray nozzle 440 at one end and connected to the vaporizer 430 at the other end, And a control unit for controlling the valve for opening and closing the flow path of the disinfectant spray nozzle 440 so as to spray the vaporized disinfectant liquid at the time of operating the switch 460 and manually disinfecting switch 460 or simultaneously with air injection have.

The disinfectant tank 410 is filled with a disinfectant harmless to the human body and is connected to the disinfectant tank 410 by a pump 420 to flow the disinfectant to the vaporizer 430. The disinfectant vaporized in the vaporizing section 430 is sprayed toward the front of the panel 10 through the disinfectant spraying hose 450 and the disinfectant spraying nozzle 440.

Disinfection can be performed by using an ozone generator or by projecting ultraviolet rays without using a disinfectant solution.

One or more disinfectant spray nozzles 440 may be provided and the disinfectant spray hose 450 may be provided corresponding to the disinfectant spray nozzle 440. In particular, a disinfectant spray nozzle 440 may be provided in the middle of the front panel 10 for central disinfection such as a hand. Further, the diameter of the nozzle may be smaller than that of the air injection nozzle 30.

The disinfecting switch 460 may be provided on one side of the outdoor dust separator of the present invention such as the top plate of the pedestal 20 or the front surface of the panel 10 and is easy to press and operate when installed on the pedestal 20, It is preferable to install the small child at the lower part or the lower part so as to easily operate the child.

The disinfection function may be provided by manual disinfection switch 460 operation, or automatically to operate simultaneously with air injection.

6, the vaporization unit 430 includes a heating unit 431 having a hollow in its inner periphery, a flow path unit 432 mounted in the hollow and having a groove-like flow path formed on the outer periphery thereof, And an outlet path 434 connecting the other end of the flow path unit 432 to the disinfectant spray nozzle 440. The flow path unit 432 is connected to the flow path unit 432, (432) includes a plurality of transverse flow paths (435a) and a longitudinal oil passage (435b) connecting the adjacent transverse flow paths (435a) and alternately formed in the opposite direction.

The disinfectant liquid filled in the disinfectant tank 410 flows into the flow path unit 432 of the vaporization part 430 through the inflow path 433 by the pump 420 and flows into the transverse flow path 435a Flows along the lined oil passage 435b formed alternately in the opposite direction and passes through the discharge passage 434 and the disinfectant spray hose 450 and flows through the mist spray nozzle .

As another embodiment of the present invention, the weight sensor 200 provided on the upper surface of the pedestal 20 and the signal output from the weight sensor 200 are received, and only when the weight of the subject is sensed, And a control unit for turning on / off the operation of the dust separating apparatus to operate the dust separating apparatus. That is, when the weight sensing sensor 200 installed on the pedestal 20 senses the weight of the subject, the control unit activates the blowing means 40 or opens the valve of the air injection nozzle 30 to operate the dust separating apparatus It can be sprayed automatically.

In other words, since the subject does not require any additional work other than being placed on the pedestal for shaking off dust, it is not only convenient to drop dust but also has a high conversion rate when used by many people and is economical because unnecessary operation is not performed.

The weight detecting sensor 200 can be a known sensor such as a pressure sensor, can be used independently of the elongation measuring sensor 100, and can automatically operate the dust separating apparatus in parallel.

As another embodiment using the weight detection sensor 200, the control unit may be set to adjust the injection intensity in proportion to the weight so that an infant or child with a low body weight is not injured by the air pressure injected at the time of use.

In another exemplary embodiment of the present invention, the controller may receive the proximity sensor provided on the front surface of the panel 10 and the signal output from the proximity sensor to adjust the spray intensity in proportion to the distance between the subject and the panel 10, And a control unit for setting an output range of the output unit 40.

The proximity sensor is a sensor for measuring the distance to the front panel 10, and ultrasonic waves, infrared rays, or the like can be used as the elongation measurement sensor 100.

The above-described outdoor dust separator may have the functions described in parallel and operate on one subject. In addition, as shown in FIG. 7, the plurality of dust separators Devices can be used in parallel.

In addition, the pedestal 20 and the panel 10 have a size set so that a plurality of subjects can be positioned, and a plurality of the weight detection sensors 200 are installed in a row at predetermined intervals, The air injection range can be controlled by controlling the valve that opens and closes the air injection nozzle 30 so that air is injected only to the portion where the subject is located by receiving the signals output from the sensor 200. [

That is, when the subject is positioned on any one of the plurality of weight detection sensors 200 located on the upper surface of the pedestal 20, the control unit receives a signal that the weight detection sensor 200 senses the weight of the subject and outputs the signal The control unit can control the valve for opening or closing the air blowing means 40 or the air injection nozzle 30 so that air is injected only in the range of the nozzles corresponding to the respective weight detection sensors 200. [

Considering the fact that the present invention is installed so that a large number of people can conveniently use outdoors, a configuration using a plurality of weight detection sensors 200 can be used by a plurality of people at the same time, There is a very economical effect in that a large number of people are available at the time, and the required power is not consumed.

While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the following claims It will be apparent to those of ordinary skill in the art.

10: panel, 20: pedestal
30: air injection nozzle 40: blowing means
50: air jet hose 60: cover
61: communication hole 70: roof
100: Extension sensor 200: Weight sensor
300: Intensive injection switch 400: Disinfection unit
410: disinfectant tank 420: pump
430: vaporization part 431: heating part
432: flow unit 433:
434: discharge path 435a: transverse flow path
435b: Oil pathway 440: Disinfectant spray nozzle
450: Disinfectant spray hose 460: Disinfection switch

Claims (7)

A panel having both side edges bent forward to concave the front surface;
A pedestal connected to a lower front end of the panel;
A plurality of air injection nozzles installed to pass through the panel;
A blowing means for supplying air;
An air injection hose having one end connected to the air injection nozzle and the other end connected to the blowing means;
An elongation measurement sensor installed at one side of the panel and measuring elongation of the subject;
A centralized injection switch installed on one side of the outdoor dust separator; And
And a control unit for controlling a valve that opens and closes a flow path of the blowing unit or the air injection nozzle so that air is injected only in a nozzle in a range where the face or the hand is positioned when the centralized injection switch is operated,
When the centralized injection switch is operated, the control unit recognizes that the height position of the subject and the hand position are located at the middle height of the height by using the result of the extension measurement sensor, Only the corresponding range of nozzles is operated,
A disinfectant tank provided at one side of the panel;
A pump connected at one end to the disinfectant tank;
A vaporizer connected to the other end of the pump;
A disinfectant spray nozzle installed to pass through the panel and connected to the vaporizing part by a disinfectant spray hose;
A disinfectant spraying hose having one end connected to the disinfectant spray nozzle and the other end connected to the vaporizing unit;
A sterilizing switch for operating the pump; And
A control unit for controlling a valve that opens and closes the flow path of the disinfectant spray nozzle so as to spray the disinfectant at the time of operating the disinfecting switch manually or simultaneously with the air injection,
Further comprising:
Wherein the gasification unit includes a heating unit having a hollow in its inner periphery, a flow path unit mounted on the hollow and having a groove-like flow path formed on its outer circumference, an inflow path connecting one end of the pump and the flow path unit, And a discharge path connecting the spray nozzle,
Wherein the channel unit includes a plurality of transverse channels and a longitudinal channel formed in the opposite direction to connect adjacent transverse channels,
Wherein air is strongly ejected from the air ejection nozzles at the nozzles located on the front side of the subject, strongly at the nozzles located at the side of the subject, and strongly at the nozzles located at the bottom of the subject. delete The method according to claim 1,
A control unit for controlling a valve for opening and closing the flow path of the air blowing means or the air injection nozzle by receiving a signal output from the elongation measurement sensor,
And an outdoor dust separator. delete delete The method according to claim 1,
A weight detection sensor provided on an upper surface of the pedestal; And
And a control unit for receiving a signal output from the weight detection sensor and turning on / off the operation of the blowing means,
Wherein the controller adjusts the air injection intensity in proportion to the weight according to a signal output from the weight detection sensor. The method according to claim 6,
The pedestal and the panel have a size set so that a plurality of objects can be positioned,
A plurality of weight detection sensors are installed in a row at predetermined intervals,
Wherein the control unit receives signals output from the plurality of weight detection sensors and controls a valve for opening or closing the blowing means or the air injection nozzle corresponding to each weight detection sensor to adjust the air injection range.

Images