WO2005092168A1

WO2005092168A1 - Dust collecting device

Info

Publication number: WO2005092168A1
Application number: PCT/JP2005/005157
Authority: WO
Inventors: Tatsuyuki Nakagawa; Tatsuya Hirose
Original assignee: Sanyo Electric Co., Ltd.
Priority date: 2004-03-29
Filing date: 2005-03-22
Publication date: 2005-10-06
Also published as: JPWO2005092168A1; KR100869873B1; US20070204426A1; CN1937948A; KR20070001248A

Abstract

A dust collecting device capable of reducing the transfer power required to transfer dust, downsizing a transfer means, saving power consumption, and reducing noise from the transfer means. The dust collecting device is provided with a dust take-in section having a rotary brush (3), and a dust collecting section (5) for collecting dust taken in from the dust take-in section. The dust collecting section (5) has a primary chamber (51) for storing dust combed up by the rotation of the rotary brush (3), and a secondary chamber (53) communicating with the primary chamber through a communication passage. An electric fan (9) is installed in order to intermittently transfer dust in the primary chamber (51) into the secondary chamber (53).

Description

Specification

Dust collector

Technical field

The present invention relates to a dust collecting device having a rotating brush in a dust taking section.

Background art

[0002] Dust collectors are known to be of a manual type in which a floor suction device is gripped and cleaned while being manually moved, and a self-propelled type having a traveling cart driven by an electric motor. The manual type dust collector includes a tubular floor suction device, and a machine base to which the floor suction device is connected and which has a dust collection section and a dust collection electric motor, and is driven by the electric motor. A suction airflow is generated in the dust collecting section and the floor suction device, and dust on the floor is sucked through the suction port of the floor suction device.

[0003] Self-propelled dust collectors are disclosed in Patent Literature 1, Patent Literature 2, and Patent Literature 3.

Patent Document 1 discloses a dust take-up unit having a rotating brush, a first dust collecting unit disposed at one side of the dust take-up unit, and a dust take-up unit having a rotating brush, A second dust collector communicating with the first dust collector via a communication pipe, a third dust collector communicating with the second dust collector via a communication passage, and a dust collector. An electric motor for collecting dust in the dust intake section by driving the electric motor, storing rough dust in the first dust collecting section, storing intermediate dust in the second dust collecting section, It is configured to store the fine dust in the third dust collecting section.

[0004] Patent Document 2 discloses a dust collecting portion that is disposed below a traveling vehicle and has a rotating brush, and a dust collection device that is disposed above the traveling vehicle and communicates with the dust capturing portion via a communication pipe. And an electric motor for dust collection, wherein the dust collected by the rotating brush is intermittently driven by the electric motor to collect dust in a dust collection unit.

[0005] Patent Document 3 discloses a dust take-up unit having a rotating brush disposed at a lower portion of a traveling cart, a jumping roller arranged at one side of the dust take-up unit, and a dust take-up roller arranged at an upper portion of the travel cart. A dust collecting blower, and a dust collecting part disposed in a communication path between the blower and the dust take-in part. The rotating brush is swept by the rotation of the blower, the jumping roller, and the rotating brush. The rising roller is configured to jump up the dust to the dust collecting section. Patent Document 1: JP-A-8-89451

Patent Document 2: Japanese Patent Application Laid-Open No. 2003-10076

Patent Document 3: JP-A-10-317338

Disclosure of the invention

Problems to be solved by the invention

[0006] However, in the manual type dust collector, a relatively large suction force is required because the distance between the suction port of the floor suction tool and the dust collecting portion of the machine base is relatively long. In addition, there is a problem that an electric motor for dust collection becomes large.

[0007] Further, in Patent Documents 1 and 3, since the electric motor for dust collection is continuously driven, noise due to the driving of the electric motor is continuously generated, and the power consumption is also reduced. However, since the electric motor is continuously driven even when the amount of dust taken in the dust taking part is small, the dust collection efficiency is relatively low. Further, in Patent Document 2, a relatively large electric motor is required because the dust collected on the floor by the rotating brush is directly conveyed to the dust collecting section, and noise generated by driving the electric motor is high. However, there is a problem that power consumption is also increased.

[0008] The present invention has been made in view of such circumstances, and has a primary object of storing a primary chamber for storing dust raised by rotation of a rotating brush and a secondary chamber communicating with the primary chamber via a communication path. A dust collecting unit having a dust collecting section having a chamber and a conveying means for intermittently conveying the dust in the primary chamber to the secondary chamber, thereby reducing a conveying force required for conveying the dust. To provide.

[0009] Further, another purpose is to make the rotating brush generate an airflow for sending the dust taken in the dust taking part to the dust collecting part, thereby making the suction like a normal vacuum cleaner. It is an object of the present invention to provide a dust collecting device that can send dust to a dust collecting portion without using a large-sized fan that constantly operates for generating force.

[0010] Further, another object is to suppress the intake passage communicating with the primary chamber around the rotary brush and the airflow generated by the rotation of the rotary brush from leaking from the intake passage in the rotation direction of the rotary brush. It is an object of the present invention to provide a dust collecting device having a configuration having a leakage suppressing wall and capable of increasing dust lifting efficiency. Another object of the present invention is to provide a dust collecting device that can reduce the resistance of a dust intake passage by setting the intake passage to have a width substantially equal to the width of the rotating brush, and that can easily take in the dust. It is in.

Another object is to further provide an auxiliary airflow generating means for generating an airflow for assisting the airflow generated by the rotating brush so as to send the dust taken in the dust taking section to the dust collecting section. With this configuration, it is an object of the present invention to provide a dust collecting device that can easily take in dust having a relatively large specific gravity raised by the rotating brush.

[0013] Another object is to provide a dust collector capable of reducing a transfer force required for transferring dust from the primary chamber to the secondary chamber by making the communication path the same as or lower than the bottom of the primary chamber. It is to provide.

[0014] Further, another object is to provide the communication path at a relatively low position by providing the bottom surface of the primary chamber at a position higher than the rotation center of the rotary brush. An object of the present invention is to provide a dust collecting device that can move dust with a small output electric fan.

[0015] Further, another purpose is to make the bottom of the primary chamber lower in the communication passage side than the dust collection port communicating with the intake passage, so that the transfer force required for transfer from the primary chamber to the secondary chamber is reduced. Can be smaller

Another object of the present invention is to provide a dust collecting device that can make it difficult for dust in the primary chamber to flow back to the dust collecting port side when the dust collecting device is lifted or during cleaning.

[0016] Another object is to guide the dust collected in the primary chamber to the communication passage, and to provide, on the bottom surface of the primary chamber, a ridge on the bottom surface of the primary chamber as a backflow resistance to the intake passage. An object of the present invention is to provide a dust collecting device that can easily transfer dust to a secondary chamber.

[0017] Another object is to provide a dust collection device that can increase the amount of dust collected in the secondary chamber by making the secondary chamber larger than the primary chamber.

[0018] Further, another object is to make the secondary chamber lower in communication passage side than the counter-communication passage side and to provide an inclined surface inclining from the communication passage side to the counter-communication passage in the secondary chamber, so that the secondary chamber is formed. It is an object of the present invention to provide a dust collector capable of increasing the amount of dust collected in a room.

[0019] Still another object is to open the communication passage on the side opposite to the dust collection port where the primary chamber communicates with the intake passage, and arrange the counter communication passage side of the secondary chamber above the primary chamber. This makes it possible to reduce the size of the entire dust collector in plan view, and also to reduce the airflow and Z or supplementary air generated by the rotating brush. An object of the present invention is to provide a dust collecting device which can reduce the loss of airflow generated by auxiliary airflow generation means and can transport dust in the primary chamber to the secondary chamber even with a relatively small airflow.

[0020] Another object is to provide a ventilation opening that opens on the side of the secondary passage opposite to the communication passage, and to dispose an electric fan as a conveying means outside the ventilation opening, so that the entire dust collection device can be planarized. It is an object of the present invention to provide a dust collector that can be miniaturized visually.

Another object is to provide a means for automatically operating the electric fan intermittently, so that dust in the primary chamber can be reliably and intermittently transferred to the secondary chamber without clogging the primary chamber with dust. An object of the present invention is to provide a dust collector.

[0022] Further, another object is to provide a dust collector capable of preventing an excessive increase in the amount of dust in the primary chamber by providing a backflow prevention valve for preventing dust in the secondary chamber from flowing back into the primary chamber. It is to provide.

[0023] Another object is to dispose the electric motor linked to the rotating brush above the rotating brush, so that the intake passage communicating with the primary chamber can be widened, and furthermore, the entire dust collecting device can be used. An object of the present invention is to provide a dust collecting device that can be reduced in size in a plan view.

[0024] Still another object is to provide a dust collection device in which dust in the secondary chamber can be easily discarded to the outside by providing the secondary chamber in a detachably mounted housing.

Another object is to provide a dust collection device in which the housing can be easily removed by providing an operating body having a locking portion for locking the housing so as to be vertically movable. is there. Means for solving the problem

[0026] The dust collector according to the first invention is a dust collector, comprising: a dust intake unit having a rotating brush; and a dust collection unit that collects dust taken in from the dust intake unit. The unit has a primary chamber for storing dust raised by the rotation of the rotating brush and a secondary chamber communicating with the primary chamber via a communication passage. The secondary chamber intermittently removes dust in the primary chamber. It is characterized by having a transfer means for transferring to the next room.

[0027] In the first invention, the rotating brush lifts the dust, the raised dust is stored in the primary chamber, and the dust in the primary chamber is intermittently transported to the secondary chamber. The transfer force required to transfer the sheet can be reduced, the transfer means can be downsized, and the power consumption can be reduced. Moreover, Noise due to the transport means can be reduced.

[0028] The dust collection device according to a second aspect of the invention is characterized in that the rotating brush generates an airflow for sending the dust taken into the dust collection unit to the dust collection unit.

[0029] In the second invention, the rotation of the rotary brush generates an airflow for sending the dust taken in the dust intake unit to the dust collection unit. Dust can be sent to the dust collector without using a large, constantly running fan to generate force.

[0030] The dust collection device according to a third aspect of the present invention is the dust collection device, wherein an intake passage communicating with the primary chamber is provided around the rotary brush, and an airflow generated by rotation of the rotary brush flows from the intake passage to the rotary brush. A leakage suppression wall for suppressing leakage in the rotation direction.

[0031] In the third invention, the airflow pressure in the intake passage can be increased, so that the efficiency of raising dust can be increased.

[0032] A dust collector according to a fourth invention is characterized in that the intake passage has a width substantially equal to the width of the rotating brush.

[0033] In the fourth invention, the dust raised by the rotating brush can be lifted upward from the lifting position, so that the resistance in the dust intake passage can be reduced and dust can be easily taken in.

[0034] The dust collection device according to a fifth aspect of the present invention transmits the dust taken in the dust intake unit to the dust collection unit, and generates an air flow for assisting the air flow generated by the rotating brush. It is characterized by further having auxiliary airflow generating means.

According to the fifth aspect of the present invention, since an airflow faster than an airflow generated by the rotation of the rotating brush can be generated in the intake passage, the relatively large specific dust raised by the rotating brush is captured. easy.

[0036] A dust collector according to a sixth aspect of the invention is characterized in that the communication path is the same as or lower than the bottom surface of the primary chamber.

[0037] In the sixth invention, the transfer resistance of the dust from the primary chamber to the secondary chamber can be reduced, the transfer power required to transfer the primary chamber to the secondary chamber can be reduced, and the transfer means can be further improved. Can be downsized.

[0038] A dust collection device according to a seventh aspect of the present invention includes a truck supported by a traveling wheel and having the dust intake unit and the dust collection unit mounted thereon, and the bottom surface of the primary chamber is provided with a rotation of the rotating brush. Center It is characterized in that it is provided at a higher position.

In the seventh invention, since a space can be secured below the primary chamber, the communication path can be provided at a relatively low position, and dust from the primary chamber to the secondary chamber can be reduced. Can be moved by an electric fan with a small output.

[0040] The dust collector according to an eighth aspect of the present invention is characterized in that the bottom surface of the primary chamber is lower on the communication path side than the dust collection port communicating with the intake path.

[0041] In the eighth invention, the resistance of the dust to move in the primary chamber can be reduced, the transport force required for transporting the dust from the primary chamber to the secondary chamber can be reduced, and the transport means can be further reduced in size. The degree of freedom in design can be increased. Further, when the dust collecting device is lifted or during cleaning, dust in the primary chamber can be made difficult to flow back to the dust collecting port side.

[0042] In the dust collector according to a ninth aspect of the present invention, the bottom surface of the primary chamber guides the dust collected in the primary chamber to the communication passage, and serves as a backflow resistance to the intake passage. It is characterized by having an article.

According to the ninth invention, dust is unlikely to flow backward in the primary chamber, and can be guided to the communication path along the ridge, so that dust in the primary chamber can be easily transported to the secondary chamber. .

[0044] A dust collector according to a tenth invention is characterized in that the secondary chamber is larger than the primary chamber.

[0045] In the tenth invention, the facilitating force for transporting the dust in the primary chamber to the secondary chamber can increase the amount of dust collected in the secondary chamber, and a large amount of dust is collected after the dust collection work. It can be discarded outside.

[0046] In the dust collector according to an eleventh aspect of the present invention, the secondary chamber has the communication path side lower than the counter-communication path side, and has an inclined surface inclined from the communication path side to the counter-communication path. Characterized by

In the eleventh invention, dust having a low specific gravity is easily transported from the communication passage to the counter communication passage in the secondary chamber, and dust having a high specific gravity is easily stored in the communication passage. The amount of dust collected in the area can be increased.

[0048] In the dust collector according to a twelfth aspect, in the communication path, the primary chamber is opened on a side opposite to a dust collection port that communicates with the intake path, and the secondary chamber is opposite to the communication path. Is above the primary room It is characterized in that it is arranged on the side.

[0049] In the twelfth invention, since the primary chamber and the secondary chamber are arranged vertically, the entire dust collecting device can be reduced in size in plan view, and the force of the airflow generated by the rotating brush and the force of the rotating brush can be reduced. // The loss of airflow generated by the auxiliary airflow generation means can be reduced, and the dust in the primary chamber can be transported to the secondary chamber even with a relatively small airflow.

[0050] A dust collector according to a thirteenth aspect of the present invention has a vent opening on the side of the secondary chamber opposite to the communication passage, and the transfer means is an electric fan arranged outside the vent. It is characterized.

[0051] In the thirteenth invention, since the secondary chamber and the electric fan can be juxtaposed above the primary chamber, the entire dust collection device can be reduced in plan view.

[0052] A dust collector according to a fourteenth invention is characterized in that the dust collector has means for automatically operating the electric fan intermittently.

[0053] According to the fourteenth aspect, dust in the primary chamber, which does not clog the primary chamber, can be reliably and intermittently conveyed to the secondary chamber.

[0054] A dust collector according to a fifteenth aspect of the present invention is characterized in that the dust collector has a check valve for preventing dust in the secondary chamber from flowing back into the primary chamber.

[0055] In the fifteenth invention, it is possible to prevent an excessive increase in the amount of dust in the primary room.

The dust in the primary chamber can be transported to the secondary chamber without being clogged in the communication passage.

[0056] A dust collector according to a sixteenth aspect of the present invention is characterized in that an electric motor interlocked with the rotating brush is disposed above the rotating brush.

According to the sixteenth aspect, since the primary chamber having a size corresponding to the axial length of the rotary brush can be arranged between the rotary brush and the electric motor, the primary chamber communicates with the primary chamber. The intake passage can be made wider, the resistance of dust in the intake passage can be reduced, and the primary chamber can be arranged without being obstructed by the electric motor. It can be visually reduced.

[0058] A dust collector according to a seventeenth aspect of the present invention is characterized in that it comprises a housing detachably mounted and having the secondary chamber.

In the seventeenth invention, dust in the secondary chamber is easily discarded outside by removing the housing. S power

[0060] A dust collector according to an eighteenth aspect of the present invention is characterized in that the dust collector is provided with an operating body that can move up and down and has a locking portion that locks the housing.

[0061] In the eighteenth invention, even when the dust collecting device is placed on the floor, the locking of the housing can be released by pressing the operating body downward, and the housing can be removed. It can be easily removed.

The invention's effect

[0062] According to the first invention, the transfer force required to transfer dust can be reduced, the transfer means can be downsized, and power consumption can be reduced. In addition, noise caused by the transport means can be reduced.

[0063] According to the second invention, dust can be sent to the dust collection unit without using a large-sized fan that constantly operates to generate suction force as in a normal vacuum cleaner.

[0064] According to the third invention, the air pressure in the intake passage can be increased, and the power of raising the dust lifting efficiency can be increased.

[0065] According to the fourth aspect, the resistance of the dust in the dust intake passage can be reduced, and dust can be easily absorbed.

[0066] According to the fifth invention, it is easy to take in the dust having a relatively large specific gravity raised by the rotating brush.

According to the sixth and eighth inventions, the transfer force required for transfer from the primary chamber to the secondary chamber can be reduced, and the transfer means can be further reduced. Further, when the dust collecting device is lifted or during cleaning, dust in the primary chamber can be made hard to flow back to the dust collecting port side.

[0068] According to the seventh aspect, the communication path can be provided at a relatively low position, and the movement of dust from the primary chamber to the secondary chamber can be performed by a small-output electric fan.

[0069] According to the ninth invention, dust in the primary chamber is easily transported to the secondary chamber.

[0070] According to the tenth aspect, the amount of dust collected in the secondary chamber can be increased, and a large amount of dust can be discarded to the outside after the dust collection operation.

[0071] According to the eleventh invention, dust having a low specific gravity is easily transported from the communication passage to the counter communication passage in the secondary chamber, and dust having a high specific gravity is easily stored in the communication passage. The amount of collected dust can be reduced.

[0072] According to the twelfth aspect, the entirety of the dust collecting apparatus is flat by the vertical arrangement of the primary chamber and the secondary chamber. It can be downsized visually. In addition, the loss of the airflow generated by the rotating brush and / or the airflow generated by the auxiliary airflow generation means can be reduced, and the dust in the primary chamber can be transported to the secondary chamber even with a relatively small airflow. Can be.

[0073] According to the thirteenth invention, the secondary chamber and the electric fan can be juxtaposed above the primary chamber.

In addition, the entire dust collecting device can be miniaturized in a plan view.

According to the fourteenth aspect, it is possible to reliably and intermittently transport the dust in the primary chamber to the secondary chamber without clogging the primary chamber with dust.

[0075] According to the fifteenth aspect, it is possible to prevent the amount of dust from being excessively increased in the primary chamber, and to convey the dust in the primary chamber to the secondary chamber without clogging in the communication passage.

According to the sixteenth aspect, it is possible to reduce the dust take-up resistance in the take-in passage, and to further reduce the size of the entire dust collector in plan view.

[0077] According to the seventeenth aspect, by removing the housing, it is possible to easily discard the dust in the secondary chamber to the outside.

[0078] According to the eighteenth aspect, even when the dust collection device is placed on the floor, the housing can be easily removed by pressing the operation body downward, and the secondary chamber can be easily removed. Dust can be more easily discarded to the outside with a single layer.

Brief Description of Drawings

FIG. 1 is a perspective view showing a configuration of a dust collector according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a state where a secondary chamber of a dust collection unit is removed.

FIG. 3 is an enlarged sectional view taken along the line III-III of FIG. 1.

FIG. 4 is an enlarged sectional view taken along the line IV—IV in FIG. 1.

FIG. 5 is an enlarged sectional view taken along line VV of FIG. 1.

FIG. 6 is an enlarged sectional view taken along line VI-VI of FIG. 1.

FIG. 7 is a plan view showing a state where parts are removed.

FIG. 8 is a plan view showing a configuration of a dust collecting unit.

FIG. 9 is a rear view showing the configuration of the dust collector according to the first embodiment of the present invention.

FIG. 10 is a side view showing the configuration of the dust collector according to the first embodiment of the present invention.

FIG. 11 is a cross-sectional plan view showing a configuration of a dust collector according to a second embodiment of the present invention. FIG. 12 is a longitudinal sectional side view showing a configuration of a main part of a dust collector according to Embodiment 2 of the present invention.

FIG. 13 is a cross-sectional plan view showing a configuration of a main part of a dust collector according to Embodiment 2 of the present invention.

FIG. 14 is a longitudinal sectional side view showing a configuration of a main part of a dust collector according to a second embodiment of the present invention.

FIG. 15 is a plan view with a part of a dust collector according to a second embodiment of the present invention omitted.

FIG. 16 is a schematic perspective view of a main part of a dust collector according to a second embodiment of the present invention.

Explanation of symbols

3 rotating brush

4 Dust intake

41 Intake passage

42 Leakage control wall

5 Dust collection unit

51 Primary Room

51a Dust port

51d bottom

51e ridge

52 connecting passage

53 Secondary Room

53b Inclined surface

53d vent

56 Check valve

57 Connecting passage

57a opening

58 case

6 Electric motor

9 Electric fan (transportation means) 11 Control

l id locking hole (locking part)

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, the present invention will be described in detail with reference to the drawings showing the embodiments.

Embodiment 1

FIG. 1 is a perspective view showing a configuration of a dust collecting apparatus according to the present invention, FIG. 2 is a perspective view showing a state where a secondary chamber of a dust collecting section is removed, and FIG. 3 is a sectional view taken along line III-III of FIG. FIG. 4 is an enlarged sectional view taken along line IV-IV in FIG. 1, FIG. 5 is an enlarged sectional view taken along line V--V in FIG. 1, FIG. 6 is an enlarged sectional view taken along line VI--VI in FIG. 7 is a plan view showing a state in which a part is removed, FIG. 8 is a plan view showing a configuration of a dust collecting portion, FIG. 9 is a rear view showing a configuration of the first embodiment, and FIG. 10 is a configuration of the first embodiment. FIG.

[0083] The dust collector shown in Fig. 1 is a self-propelled cleaning robot, and includes a truck 2 supported by a plurality of traveling wheels 1 and a rotating brush 3 rotatably supported by the truck 2. A dust collecting unit 4 disposed above the rotating brush 3 and collecting dust collected from the dust collecting unit 4; and a dust collecting unit 5 disposed above a part of the dust collecting unit 5. An electric motor 6 for driving the brushes and an electric motor (not shown) for driving the running wheels are provided. The rotating brush 3 generates an airflow for sending the dust taken in from the dust taking part 4 to the dust collecting part 5. In the present invention, as described above, the rotating brush 3 generates an airflow for sending the dust taken in from the dust intake unit 4 to the dust collection unit 5, and thus, as in a normal vacuum cleaner, Dust can be sent to the dust collection unit 5 without using a large fan that operates constantly to generate suction force.

[0084] The dust collector according to the present invention has a flat and substantially circular shape as a whole, and Fig. 1 shows a rear portion of the dust collector according to the present invention. In FIG. 1, the rightward direction is the traveling direction, and the dust intake unit 4 is located at a position behind the traveling wheel 1 and near the traveling wheel 1 in the traveling direction. By setting the position of the dust intake unit 4 near the traveling wheel 1 in this way, the width of the dust intake unit 4 can be increased, and the residual dust when the dust collector is operated can be reduced. Can be reduced.

[0085] The dust take-up part 4 communicates with a rotating brush 3 disposed horizontally below the carriage 2 and a primary chamber, which will be described later, around the outer periphery of the rotating brush 3, and the rotating brush 3 Caused by the rotation of The intake air flow that guides the air flow into the primary chamber and the outer peripheral portion of the rotary brush 3 face each other with a small gap, and the air flow in the intake flow passage 41 leaks from the intake passage 41 in the rotation direction of the rotary brush 3. A leakage suppression wall 42 for suppressing the air leakage, and a winding suppression member 44 projecting downward from the leakage suppression wall 42 and for suppressing the entrainment of the outside air. The intake passage 41 is formed to have the same width as the rotating brush 3 by an arc-shaped curved wall surface 43 facing the outer peripheral portion of the rotating brush 3 with a relatively large gap. The outlet of the intake passage 41 is opened from the upper peripheral surface of the rotating brush 3 so as to be parallel to the axis of the rotating brush 3. Further, the intake passage 41 and the winding suppression member 44 are formed to have a width dimension corresponding to the rotating brush 3. In addition, the winding restraining member 44 is protrudingly provided at a position near the rotating brush 3 on the opposite side to the running direction of the bogie 2 with respect to the rotating brush 3 so as to contact the floor surface. At the time of rotation, the outside air is caught in the gap between the dust intake part 4 and the floor surface, thereby suppressing the dust on the floor surface from being blown off in the traveling direction.

[0086] The rotating brush 3 has a shaft made of light metal such as aluminum and the like, and a bristle or rubber material is attached to the outer periphery thereof. Supported. In addition, one end of the rotating brush 3 is interlocked with the output shaft of the electric motor 6 via a transmission band 8, and is in a direction opposite to the rotation direction of the traveling wheel 1, in other words, in a direction opposite to the traveling direction of the bogie 2. It is configured to be rotated.

[0087] The dust collection unit 5 is flat and arranged in parallel with the axis of the rotating brush 3, and has a primary chamber 51 for storing dust raised by rotation of the rotating brush 3, and a communication path with the primary chamber 51. 52, and has a secondary chamber 53 larger than the primary chamber 51, and the electric fan 9 arranged outside the secondary chamber 53 causes a transfer airflow from the primary chamber 51 to the secondary chamber 53. It is configured to occur. The primary chamber 51 has a length corresponding to the rotating brush 3, and has a flat first housing having a dust collection port 51a communicating with the intake passage 41 and a peripheral wall 51b curved in an arc shape at both ends of the dust collection port 51a. An opening 52a of the communication passage 52 is provided at one end in the circumferential direction of the peripheral wall 51b. The primary chamber 51 is arranged so as to be substantially the same height as the upper peripheral surface of the rotating brush 3, and the dust collection port 51 a communicates with the exit 41 a of the intake passage 41. The bottom surface of the primary chamber 51 is arranged so as to be higher than the rotation center of the rotating brush 3. The bottom surface 51d of the primary chamber 51 is lower on the opening 52a side of the communication passage 52 than on the dust collection port 51a. Also on the bottom 51d Has a plurality of curved ridges 51e projecting at equal intervals from the peripheral wall 51b. The ridge 51e guides the dust collected in the primary chamber 51 to the communication passage 52, and serves as a backflow resistance to the intake passage 41, and has a relatively low height. The communication passage 52 is formed to be the same as or lower than the bottom surface 51d of the primary chamber 51.

[0088] The secondary chamber 53 has a lower surface 53a lower than the opening 52b corresponding to the opening 52a, and a higher surface 53c higher than the lower surface 53a and the opening 52b and connected to the lower surface 53a by an inclined surface 53b. The second housing 55 is formed so as to have a substantially 1/4 arc in plan view, and the lower bottom surface 53a (opening 52b side) is juxtaposed to the side of the opening 52a of the next chamber 51, The bottom 53c (opposite the communication passage 52) is placed above the next chamber 51. The lower bottom surface 53a is substantially L-shaped in plan view, and a communication hole 52b is provided in one step, and the other step is an inclined surface 53b. Further, a ventilation port 53d penetrating from the outside to the side of the non-communication passage is provided in the side wall of the non-communication passage at the portion of the high bottom surface 53c.

[0089] At the lower bottom surface 53a of the secondary chamber 53, a backflow prevention valve 56 that prevents dust from the secondary chamber 53 from flowing back from the communication passage 52 to the primary chamber 51 is swingably provided. The check valve 56 is resiliently pressed in a direction to close the communication passage 52 with a relatively small force, and is configured to open by a carrier airflow generated by the electric fan 9. Further, the first housing 54 and the second housing 55 are detachably mounted.

[0090] The electric fan 9 is located above the side opposite to the communication passage of the primary chamber 51 and is mounted on the side of the secondary chamber 53, and is located between the electric fan 9 and the vent 53d of the secondary chamber 53. The filter 10 is disposed in the air conditioner, and by driving the electric fan 9, the air in the secondary chamber 53 is sucked and the transport airflow for transporting the dust in the primary chamber 51 to the secondary chamber 53 can be generated. It is configured as follows. The electric fan 9 is composed of a turbo fan that is driven intermittently, and constitutes a transport unit that intermittently transports dust in the primary chamber 51 to the secondary chamber 53.

[0091] In the self-propelled dust collector configured as described above, the rotating brush 3 is rotated in the direction opposite to the traveling direction of the trolley 2 while the trolley 2 is traveling. Due to the rotation of the rotating brush 3, an airflow is generated in the intake passage 41, and dust on the floor is lifted by the rotating brush 3. Due to the lifting and the airflow by the rotating brush 3, the lifting dust can be transferred S from the intake passage 41 to the primary chamber 51. In this case, dust having a relatively small specific gravity is carried by the airflow. In addition, dust having a relatively large specific gravity can be lifted by the rotating brush, so that the capturing efficiency can be improved. In addition, since the leakage suppressing wall 42 faces the outer peripheral portion of the rotating brush 3 with a small gap, dust adhering to the outer peripheral portion of the rotating brush 3 does not pass through the boundary 42a of the leakage suppressing wall 42 with the intake passage 41. This makes it possible to scrape off the rotating brush 3 and to reduce dirt on the rotating brush 3.

At the start of the cleaning, the electric fan 9 is not driven, so that the dust conveyed from the intake passage 41 is stored in the primary chamber 51 for a certain time. After a certain period of time, the electric fan 9 is driven to generate a transport airflow from the primary chamber 51 to the secondary chamber 53, and the stored air in the primary chamber 51 is transported from the communication passage 52 to the secondary chamber 53 by the transport airflow. Is done. In this case, since the secondary chamber 53 has a lower bottom surface on the side of the opening 52b of the communication passage 52 and a higher bottom surface 53c connected to the lower bottom surface 53a by the inclined surface 53b, dust having a low specific gravity is counter-communicated from the communication passage 52 side. Dust with a large specific gravity that can be easily transported to the side can be stored in the communication passage 52 side. In addition, since the bottom surface of the primary chamber 51 is arranged so as to be higher than the rotation center of the rotating brush 3, a space can be secured below. For this reason, since the communication passage 52 can be easily provided at a low position, dust can be moved from the primary chamber 51 to the secondary chamber 53 even with the electric fan 9 having a small output. After a certain period of time, the driving of the electric fan 9 is stopped S, the rotating brush 3 is rotating even when the electric fan 9 is driven and when the driving is stopped. Is stored in the primary room 51. The electric fan 9 may be driven artificially by pressing a drive switch, or may be automatically driven at predetermined time intervals. In this case, for example, the time during which the operation of the electric fan 9 is stopped for a predetermined time and the time during which the electric fan 9 is operated for a predetermined time are measured by a timer built in a control unit using a microprocessor. The electric fan 9 is automatically operated by a control command signal output from the control unit. Further, an airflow generating means such as a small-output auxiliary fan that is driven constantly and may be provided to assist the transfer of dust by the airflow generated by the rotation of the rotating brush 3. In this case, the airflow generating means is provided, for example, between the electric fan 9 and the secondary chamber 53, in the intake passage 41 or the like. In addition, instead of newly providing an auxiliary fan as an auxiliary airflow generating means, the electric fan 9 is always driven at a low output, and is driven intermittently at a high output and stored in the primary chamber 51. Waste storage dust in the secondary room 53 May be conveyed.

Embodiment 2

FIG. 11 is a cross-sectional plan view showing a configuration of a dust collector according to Embodiment 2 of the present invention, FIG. 12 is a vertical sectional side view showing a configuration of a main part, and FIG. Fig. 14 is a longitudinal side view showing the configuration of the main part, Fig. 15 is a plan view with a part thereof omitted, and Fig. 16 is a schematic perspective view of the main part.

[0094] This dust collector has basically the same configuration as that of the first embodiment, but has a communication passage 52 on one side in the longitudinal direction of a dust collection port 51a of the primary chamber 51 as in the first embodiment. Instead of this, an operating body 11 that includes a communication path 57 that opens on the opposite side to the dust collection port 51a, and further allows a housing 58 in which the secondary chamber 53 is provided to be removable, and that locks the housing 58 It is configured to have

[0095] The primary chamber 51 has a length corresponding to the rotating brush 3, and has a flat shape having a dust collecting port 51a communicating with the intake passage 41 and a peripheral wall 51b curved in an arc shape at both ends of the dust collecting port 51a. A communication passage 57 has an opening 57a at the center in the circumferential direction of the peripheral wall 51b, which is made of the first housing 54 and is opposite to the dust collection port 51a. In the primary chamber 51, the bottom of the communication passage 57 is lower than the side of the dust collection port 51a by curving the dust collection port 51a upward.

[0096] The secondary chamber 53 is formed of a housing 58 formed in a sector shape in a plan view, in other words, in a substantially 1/4 arc shape, and can be detached above the primary chamber 51 on one longitudinal side. It is installed. At the bottom of the housing 58, a hanging part 58a having a cavity as a communication path 57 is provided on the body, and the airflow derivative 12 is detachably fitted into the hanging part 58a. A vent 53d is provided on one side of the housing 58, and a pair of engaging claws 58b, 58b and a pair of engaging claws projecting from the inner side are provided at positions spaced apart in the lateral direction. It has a holding frame 58c protruding between 58b, 58b, and the urging body 13 is accommodated in the holding frame 58c.

An opening 58d corresponding to the opening 57a is provided on the inner side of the hanging portion 58a, and one side adjacent to the inner side of the hanging portion 58a has an opening 58d with respect to the bottom surface of the secondary chamber 53. And an inclined surface 58e on the inner side of the inclined portion.

[0098] The airflow derivative 12 shields the upper part of the hanging part 58a and guides dust taken in from the primary chamber 51 to a position separated from the vent 53d of the secondary chamber 53. Shield And a top wall 12a facing the inclined surface 58e, a side wall 12b connected to the top wall 12a, and a fitting portion 12c fitted into the hanging portion 58a. The dust conveyed to the secondary chamber 53 is conveyed to the secondary chamber 53 along the communication path 57 between the inclined surface 58e and the top wall 12a.

[0099] The urging body 13 urges the housing 58 in the removing direction with respect to the carriage 2, and when the operation body 11 releases the locking of the housing 58, the housing 58 is automatically removed in the removing direction. The holding member 58c is housed in a moving member 14 having a hat-shaped cross section which is held in a holding frame portion 58c so as to freely move in the lateral direction.

The operating body 11 is mounted on the carriage 2 so as to be able to move up and down, and is urged upward by an urging spring 15. The operating body 11 has a plate-shaped head 11 a having an arc shape in a plan view, a square shaft portion 11 c which is suspended from the center of the head 11 a and has a pin hole l ib, and It is provided with a pair of legs l ie, l ie, which branch from the end to both sides and have locking holes l id, l id corresponding to the engagement claws 58b, 58b, and the pin hole 1 of the square shaft part 1 lc It is vertically movably attached to the trolley 2 by pins 16 inserted into the lb. The legs lie and lie are slidable up and down along the holding frame 58c, which is a rectangular parallelepiped of the housing 58, so that the operation body 11 and the housing 58 can play with respect to the trolley 2. It is configured to eliminate. An urging spring 15 is interposed between the head 11a and the trolley 2, and the urging spring 15 urges the operating body 11 upward to lock the engaging claws 58b, 58b. The hole is configured to be locked by the lid.

[0101] The self-propelled dust collector configured as described above operates in the same manner as in the first embodiment, and will not be described in detail. The dust conveyed from the intake passage 41 to the primary chamber 51 by the airflow generated by the lifting of the rotating brush 3 and the rotation of the rotating brush 3 is conveyed to the opening 57a of the communication passage 57, It is transported into the secondary chamber 53 along the locking surface 58e of the communication path 57. In this case, in the primary chamber 51, the dust collection port 51a side is curved upward, and the bottom surface of the communication path 57 side is lower than the dust collection port 51a side, so that the cleaning or the dust collection device is lifted. In this case, it is possible to make it difficult for the dust collected in the primary chamber 51 to flow back into the intake passage 41. Further, since the opening 57a of the communication passage 57 is opened on the side opposite to the dust collection port 51a of the primary chamber 51, the loss of the airflow generated by the rotating brush 3 can be reduced, and it is relatively small. The dust in the primary chamber 51 can be transferred to the secondary chamber 53 even in a weak airflow. Since the communication path 57 communicating with the primary chamber 51 and the secondary chamber 53 is inclined with respect to the bottom of the secondary chamber 53, it is necessary to transfer the dust in the primary chamber 51 to the secondary chamber 53. The airflow can be further reduced. Further, since the upper side of the communication passage 57 communicating with the lower primary chamber 51 and the upper secondary chamber 53 is closed by the airflow derivative 12, dust transported to the secondary chamber 53 falls into the communication passage 57. Or backflow to the communication path 57 can be prevented.

[0102] When discarding the dust collected in the secondary chamber 53 to the outside, the housing 58 can be removed by pushing the head 11a of the operating body 11 downward, and the dust in the secondary chamber 53 can be easily removed. You can throw it away. When the head 11a is pressed, the entire operation body 11 overcomes the urging force of the urging spring 15 and moves downward, releasing the engagement of the locking holes lld, lid with the engaging claws 58b, 58b. The housing 58 is moved in the removal direction by the urging force of the urging body 13. Therefore, even when the dust collecting device is placed on the floor, the housing 58 can be easily removed. After the dust in the secondary chamber 53 is discarded to the outside, the hanging part 58a of the housing 58 is fitted to the carriage 2, and the head 11a of the operating body 11 is pushed downward, so that the engaging claw 58b is pressed. , 58b can be locked in the locking holes lid, lid. In this case, the operating body 11 is moved upward by the urging force of the urging spring 15, and can maintain the engagement state with the locking holes lid, lid of the engagement claws 58b, 58b. The ability to maintain

[0103] In the above-described embodiment, the self-propelled dust collector has been described, but the dust collector according to the present invention may be a manual dust collector.

Industrial applicability

[0104] A sensor for detecting an obstacle and a control unit for driving and controlling the running wheels are incorporated, and the present invention can be applied to a cleaning robot for automatically cleaning indoors and outdoors.

Claims

The scope of the claims

[1] In a dust collector including a dust intake unit having a rotating brush and a dust collection unit for collecting dust taken in from the dust intake unit, the dust collection unit is lifted by rotation of the rotating brush. A primary chamber for storing the collected dust and a secondary chamber communicating with the primary chamber via a communication path, and a transport unit for intermittently transporting the dust in the primary chamber to the secondary chamber. Dust collector characterized by the above-mentioned.

2. The dust collection device according to claim 1, wherein the rotating brush generates an air flow for sending the dust taken into the dust taking section to the dust collecting section.

[3] A take-up passage communicating with the primary chamber around the rotary brush, and a leak to suppress an airflow generated by rotation of the rotary brush from leaking from the take-in passage in a rotation direction of the rotary brush. 3. The dust collector according to claim 1, further comprising a suppression wall.

4. The dust collection device according to claim 3, wherein the intake passage has a width substantially equal to a width of the rotating brush.

[5] A claim further comprising auxiliary airflow generating means for generating an airflow for assisting the airflow generated by the rotating brush so as to send the dust taken in to the dust intake section to the dust collection section. Dust collector according to item 3 or 4.

6. The dust collector according to claim 1, wherein the communication path is the same as or lower than the bottom surface of the primary chamber.

[7] A trolley supported by the running wheels and equipped with the dust intake unit and the dust collection unit is provided.

7. The dust collecting apparatus according to claim 1, wherein a bottom surface of the primary chamber is provided at a position higher than a rotation center of the rotating brush.

[8] The dust collector according to any one of claims 3 to 7, wherein the bottom surface of the primary chamber is lower on the communication path side than the dust collection port communicating with the intake path.

9. The bottom surface of the primary chamber has a ridge that guides the dust collected in the primary chamber into the communication passage and acts as a backflow resistance to the intake passage side. Dust collector described in one of them.

[10] The dust collector according to any one of claims 1 to 9, wherein the secondary chamber is larger than the primary chamber.

11. The secondary chamber according to claim 1, wherein the side of the communication passage is lower than the side of the counter-communication passage, and the secondary chamber has an inclined surface inclined from the side of the communication passage to the counter-communication passage. Dust collector according to the item.

[12] The communication passage has an opening on a side opposite to a dust collection port where the primary chamber communicates with the intake passage, and a counter communication passage side of the secondary chamber is disposed above the primary chamber. The dust collector according to any one of claims 3 to 11.

13. The dust collector according to claim 11, further comprising a vent opening on a side of the secondary chamber opposite to the communication passage, wherein the transfer means is an electric fan disposed outside the vent. .

14. The dust collector according to claim 13, further comprising means for automatically operating the electric fan intermittently.

15. The dust collector according to any one of claims 1 to 14, further comprising a backflow prevention valve for preventing dust in the secondary chamber from flowing back into the primary chamber.

16. The dust collector according to claim 1, wherein an electric motor interlocked with the rotating brush is disposed above the rotating brush.

17. The dust collector according to claim 1, further comprising a housing detachably mounted and having the secondary chamber.

18. The dust collector according to claim 17, further comprising an operating body that can move up and down and has a locking portion that locks the housing.