JPWO2005092168A1 - Dust collector - Google Patents

Abstract

It is possible to reduce the conveying force required to convey dust, to reduce the conveying means, to reduce power consumption, and to reduce noise caused by the conveying means. A dust collecting portion having a rotating brush (3) and a dust collecting portion (5) for collecting dust taken in from the dust collecting portion are provided, and the dust collecting portion (5) is connected to the rotating brush (3 ) And a secondary chamber (53) communicating with the primary chamber (51) through a communication path, and storing the dust in the primary chamber (51). Was provided with an electric fan (9) for intermittently conveying the air to the secondary chamber (53).

Description

  The present invention relates to a dust collector having a rotating brush in a dust intake portion.

  As the dust collector, there are known a manual type in which a floor suction tool is gripped and cleaned while being manually moved, and a self-propelled type having a traveling carriage driven by an electric motor. The manual type dust collecting apparatus includes a tubular floor suction tool, and a machine base to which the floor suction tool is connected and having a dust collecting unit and an electric motor for dust collection, and is driven by the electric motor. A suction airflow is generated in the dust collection unit and the floor suction tool, and dust on the floor is sucked from the suction port of the floor suction tool.

  Self-propelled dust collectors are disclosed in Patent Literature 1, Patent Literature 2, and Patent Literature 3. Patent Document 1 is arranged at a lower part of a traveling carriage, and is disposed at a dust intake part having a rotating brush, a first dust collecting part arranged on one side of the dust intake part, and an upper part of the traveling carriage. A second dust collector that communicates with the first dust collector via a communication tube, a third dust collector that communicates with the second dust collector via a communication passage, and a dust collector. And an electric motor for driving, the electric motor is driven to take in dust into the dust take-in part, store the rough dust in the first dust collection part, and store the intermediate dust in the second dust collection part. The waste is stored in the third dust collecting unit.

  Patent Document 2 is arranged at the lower part of the traveling carriage and has a dust intake part having a rotating brush, the dust collecting part which is arranged at the upper part of the traveling carriage and communicates with the dust intake part through a communication pipe, And an electric motor for collecting dust, and configured to collect dust collected by the rotating brush in a dust collecting portion by intermittently driving the electric motor.

Patent Document 3 is arranged at a lower portion of a traveling carriage, and includes a dust take-up portion having a rotating brush, a jumping roller arranged at one side of the dust take-up portion, and a collector disposed at the upper portion of the travel carriage. A dust blower and a dust collecting portion disposed in the communication path of the blower and the dust take-in portion, and the dust swept up by the rotating brush by the rotation of the blower, the jumping roller and the rotating brush. The jumping roller is configured to jump up to the dust collecting unit.
JP-A-8-89451 JP 2003-10076 A Japanese Patent Laid-Open No. 10-317338

  However, manual type dust collectors require a relatively strong suction force because the distance between the suction port of the floor suction tool and the dust collector of the machine base is relatively long. There is a problem that the electric motor for use becomes large.

  Further, in Patent Documents 1 and 3, since the electric motor for collecting dust is continuously driven, noise due to the driving of the electric motor is continuously generated, and the power consumption is relatively high, Further, since the electric motor is continuously driven even when the amount of dust taken up by the dust taking-in portion is small, there is a problem that the dust collection efficiency is relatively poor. Further, in Patent Document 2, in order to directly convey the dust on the floor collected by the rotating brush to the dust collecting part, a relatively large electric motor is required, and the noise due to the driving of the electric motor is high, There is a problem that power consumption increases.

  The present invention has been made in view of such circumstances, and a main object thereof is to have a primary chamber for storing dust scraped up by the rotation of the rotating brush and a secondary chamber communicating with the primary chamber via a communication passage. To provide a dust collector capable of reducing the transport force necessary for transporting dust by comprising a dust collection section and transport means for transporting dust in the primary chamber intermittently to the secondary chamber. It is in.

  In addition, another purpose is to generate an air flow for sending the dust taken in the dust intake to the dust collector, so that a suction force is generated like a normal vacuum cleaner. It is an object of the present invention to provide a dust collector that can send dust to a dust collector without using a large fan that is always in operation.

  Another object of the present invention is to provide an intake passage that communicates with the primary chamber around the rotating brush, and a leakage suppression wall that should prevent airflow generated by the rotation of the rotating brush from leaking from the intake passage in the direction of rotation of the rotating brush. It is providing the dust collector which can raise the dust pick-up efficiency.

  Another object of the present invention is to provide a dust collecting device that can reduce the resistance in the dust intake passage by making the intake passage as wide as the width of the rotating brush and can easily take in dust. .

  Another object is to further include auxiliary airflow generating means for generating an airflow for assisting the airflow generated by the rotating brush in order to send the dust taken into the dust collecting portion to the dust collecting portion. Accordingly, an object of the present invention is to provide a dust collecting device that can easily take in dust having a relatively large specific gravity that is swung up by a rotating brush.

  Another object of the present invention is to provide a dust collector capable of reducing the transport force necessary for transporting dust from the primary chamber to the secondary chamber by making the communication path the same as or below the bottom surface of the primary chamber. It is in.

  Another object is to provide a 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, and transfer of dust from the primary chamber to the secondary chamber. It is an object of the present invention to provide a dust collector that can perform the operation with an electric fan having a small output.

  Furthermore, the other purpose is that the communication passage side is lower than the dust collection port that communicates the bottom surface of the primary chamber with the intake passage, thereby reducing the conveyance force required for conveyance from the primary chamber to the secondary chamber, It is another object of the present invention to provide a dust collector that can make it difficult for dust in the primary chamber to flow backward to the dust collector port when the dust collector is lifted or during cleaning.

  Another purpose is to guide the dust collected in the primary chamber to the communication passage, and to provide a convex line on the bottom surface of the primary chamber that provides resistance to backflow toward the intake passage. An object of the present invention is to provide a dust collector that can be easily transported to the next chamber.

  Another object is to provide a dust collector that can increase the amount of dust collected in the secondary chamber by making the secondary chamber larger than the primary chamber.

  Another purpose is to lower the communication path side of the secondary chamber than the anti-communication path side, and to provide an inclined surface in the secondary chamber that is inclined from the communication path side to the anti-communication path. An object of the present invention is to provide a dust collector capable of increasing the amount of dust collection.

  Furthermore, another purpose 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 dispose the secondary communication chamber side above the primary chamber, thereby collecting dust. The entire apparatus can be reduced in size in plan view, and the loss of the air flow generated by the rotating brush and / or the air flow generated by the auxiliary air flow generating means can be reduced. An object of the present invention is to provide a dust collector capable of transporting dust to a secondary chamber.

  Another object is to reduce the size of the dust collector in plan view by providing a vent opening that opens on the side of the secondary chamber opposite to the reciprocal passage and arranging an electric fan as a conveying means outside the vent. An object of the present invention is to provide a dust collector that can be used.

  Another purpose is to provide a means for automatically operating the electric fan intermittently so that dust in the primary chamber can be reliably transported to the secondary chamber without clogging the primary chamber. To provide an apparatus.

  Another object of the present invention 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 that prevents the dust in the secondary chamber from flowing back into the primary chamber. There is.

  Another object is to place an 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 the entire dust collector is small in plan view. It is to provide a dust collecting device that can be made into a dust.

  Another object of the present invention is to provide a dust collector that can easily dispose of dust in the secondary chamber to the outside by providing a secondary chamber in the housing that is detachably mounted.

  Another object of the present invention is to provide a dust collector capable of easily removing the casing by providing an operating body having a locking portion for locking the casing so as to be movable up and down.

  A dust collector according to a first aspect of the present invention is a dust collector including a dust collecting portion having a rotating brush and a dust collecting portion that collects dust taken in from the dust collecting portion. A primary chamber for storing dust scraped up by rotation of the rotating brush, and a secondary chamber communicating with the primary chamber via a communication path; and the dust in the primary chamber is intermittently transferred to the secondary chamber. It has the conveyance means to convey, It is characterized by the above-mentioned.

  In the first aspect of the invention, the rotating brush lifts up the dust, the dust is stored in the primary chamber, and the dust in the primary chamber is intermittently transferred to the secondary chamber. The necessary transport force can be reduced, the transport means can be miniaturized, and the power consumption can be reduced. In addition, the noise caused by the conveying means can be reduced.

  The dust collector according to a second aspect of the invention is characterized in that the rotating brush generates an air flow for sending the dust taken into the dust take-in portion to the dust collection portion.

  In the second invention, the rotation of the rotating brush generates an air flow for sending the dust taken in the dust taking part to the dust collecting part. Therefore, it is possible to send dust to the dust collecting section without using a large fan that is always in operation.

  In the dust collector according to a third aspect of the present invention, an intake passage communicating with the primary chamber around the rotating brush, and an air flow generated by the rotation of the rotating brush from the intake passage toward the rotating direction of the rotating brush. It has the leakage suppression wall which should suppress leaking, It is characterized by the above-mentioned.

  In the third aspect of the invention, since the airflow pressure in the intake passage can be increased, the dust scraping efficiency can be increased.

  The dust collector according to a fourth aspect of the present invention is characterized in that the intake passage has a width approximately equal to the width of the rotating brush.

  In the fourth aspect of the invention, the dust picked up by the rotating brush can be picked up from the pick-up position, so that the resistance in the dust intake passage can be reduced and the dust can be easily taken up.

  A dust collector according to a fifth aspect of the present invention is an auxiliary air flow for generating an air flow for assisting an air flow generated by the rotating brush to send the dust taken in the dust taking portion to the dust collecting portion. It further has generating means.

  In the fifth aspect of the invention, since the air flow that is faster than the air flow generated by the rotation of the rotary brush can be generated in the intake passage, it is easy to take in the dust having a relatively large specific gravity scraped up by the rotary brush.

  The dust collector according to a sixth aspect is characterized in that the communication path is the same as or below the bottom surface of the primary chamber.

  In the sixth invention, it is possible to reduce the transfer resistance of dust from the primary chamber to the secondary chamber, reduce the transfer force required for transfer from the primary chamber to the secondary chamber, and further reduce the size of the transfer means. .

  A dust collector according to a seventh aspect of the present invention includes a carriage that is supported by a traveling wheel and on which the dust take-in portion and the dust collection portion are mounted, and the bottom surface of the primary chamber is more than the rotation center of the rotary brush It is provided at a high 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 the output of dust from the primary chamber to the secondary chamber can be reduced. This can also be done with an electric fan.

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

  In the eighth invention, the movement resistance of dust in the primary chamber can be reduced, the transfer force required for transfer from the primary chamber to the secondary chamber can be reduced, the transfer means can be further reduced in size, and the design freedom The degree can be increased. Further, when the dust collector is lifted or during cleaning, it is possible to make it difficult for the dust in the primary chamber to flow backward to the dust collection port side.

  In the dust collector according to a ninth aspect of the invention, the bottom surface of the primary chamber has a ridge that guides the dust collected in the primary chamber to the communication passage and serves as a reverse flow resistance toward the intake passage. It is characterized by that.

  In the ninth aspect of the invention, the dust hardly flows back in the primary chamber and can be guided to the communication path along the ridge, so that the dust in the primary chamber can be easily conveyed to the secondary chamber.

  The dust collector according to a tenth aspect is characterized in that the secondary chamber is larger than the primary chamber.

  In the tenth aspect of the invention, the dust in the primary chamber can be easily conveyed to the secondary chamber, and the amount of dust collected in the secondary chamber can be increased, and a large amount of dust is discarded outside after the dust collection operation. be able to.

  The dust collector according to an eleventh aspect of the invention is characterized in that the secondary chamber has an inclined surface inclined from the communication path side to the anti-communication path, with the communication path side being lower than the anti-communication path side. And

  In the eleventh aspect of the invention, dust having a small specific gravity is easily conveyed from the communication path side to the anti-communication path side in the secondary chamber, and dust having a large specific gravity is easily stored on the communication path side. The amount of dust can be increased.

  In the dust collector according to a twelfth aspect of the present invention, the communication passage is open on the side opposite to the dust collection port where the primary chamber communicates with the intake passage, and the anti-communicating passage side of the secondary chamber is the primary passage It is arranged above the chamber.

  In the twelfth invention, since the primary chamber and the secondary chamber are arranged one above the other, the entire dust collector can be reduced in plan view, and the air flow and / or auxiliary generated by the rotating brush can be reduced. Loss of airflow generated by the airflow generation means can be reduced, and dust in the primary chamber can be conveyed to the secondary chamber even with a relatively small airflow.

  A dust collector according to a thirteenth aspect of the present invention has a vent opening that opens to the anti-recommunication passage of the secondary chamber, and the conveying means is an electric fan disposed outside the vent hole. And

  In the thirteenth aspect, since the secondary chamber and the electric fan can be juxtaposed above the primary chamber, the entire dust collector can be reduced in size in plan view.

  A dust collector according to a fourteenth aspect of the present invention is characterized by having means for automatically operating the electric fan intermittently.

  In the fourteenth aspect, the dust in the primary chamber can be reliably and intermittently transferred to the secondary chamber without clogging the primary chamber with dust.

  A dust collector according to a fifteenth aspect of the present invention includes a backflow prevention valve that prevents the dust in the secondary chamber from flowing back into the primary chamber.

  In the fifteenth aspect, since it is possible to prevent the amount of dust from increasing excessively in the primary chamber, the dust in the primary chamber can be conveyed to the secondary chamber without being clogged by the communication path.

  The dust collector according to a sixteenth aspect of the present invention is characterized in that an electric motor linked to the rotating brush is disposed above the rotating brush.

  In the sixteenth aspect of the invention, since the primary chamber having a size corresponding to the axial length of the rotary brush can be disposed between the rotary brush and the electric motor, the intake that communicates with the primary chamber can be provided. The passage can be widened, the dust intake resistance in the intake passage can be reduced, and the primary chamber can be placed without being obstructed by the electric motor. it can.

  A dust collector according to a seventeenth aspect of the present invention is characterized in that it includes a housing that is detachably mounted and has the secondary chamber.

  In the seventeenth invention, the dust in the secondary chamber can be easily discarded outside by removing the casing.

  A dust collector according to an eighteenth aspect of the present invention includes an operating body that can move up and down and has a locking portion that locks the housing.

  In the eighteenth invention, even when the dust collector is placed on the floor, by pressing the operating body downward, the locking of the housing can be released, and the housing can be easily removed. it can.

  According to the first aspect of the present invention, it is possible to reduce the conveying force necessary to convey dust, to reduce the conveying means, and to reduce power consumption. In addition, the noise caused by the conveying means can be reduced.

  According to the second aspect of the present invention, dust can be sent to the dust collecting portion without using a large fan that is always operated for generating suction force, as in a normal vacuum cleaner.

  According to the third aspect of the present invention, the airflow pressure in the intake passage can be increased, and the dust scraping efficiency can be increased.

  According to the fourth aspect of the invention, the resistance in the dust intake passage can be reduced, and the dust can be easily taken up.

  According to the fifth aspect of the invention, it is easy to take in dust having a relatively large specific gravity that is swung up by the rotating brush.

  According to the sixth and eighth inventions, it is possible to reduce the transport force necessary for transport from the primary chamber to the secondary chamber, and it is possible to further reduce the transport means. Further, when the dust collector is lifted or during cleaning, it is possible to make it difficult for the dust in the primary chamber to flow backward to the dust collection port side.

  According to the seventh aspect of the present invention, the communication path can be provided at a relatively low position, and dust can be moved from the primary chamber to the secondary chamber even with an electric fan with a small output.

  According to the ninth aspect, it is easy to transport the dust in the primary chamber to the secondary chamber.

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

  According to the eleventh invention, dust having a small specific gravity is easily conveyed from the communication path side to the anti-communication path side in the secondary chamber, and dust having a large specific gravity is easily stored on the communication path side. Can increase the amount.

  According to the twelfth aspect of the present invention, the entire dust collector can be reduced in size in plan view by the vertical arrangement of the primary chamber and the secondary chamber. Further, the loss of the air flow generated by the rotating brush and / or the air flow generated by the auxiliary air flow generating means can be reduced, and the dust in the primary chamber can be conveyed to the secondary chamber even with a relatively small air flow. it can.

  According to the thirteenth aspect, the secondary chamber and the electric fan can be juxtaposed above the primary chamber, and the entire dust collector can be reduced in size in plan view.

  According to the fourteenth aspect, the dust in the primary chamber can be reliably and intermittently transferred to the secondary chamber without clogging the primary chamber with dust.

  According to the fifteenth aspect, it is possible to prevent an excessive increase in the amount of dust in the primary chamber, and it is possible to transport the dust in the primary chamber to the secondary chamber without clogging the communication passage.

  According to the sixteenth aspect of the present invention, it is possible to reduce the dust resistance in the intake passage, and to reduce the size of the entire dust collector in plan view.

  According to the seventeenth aspect, the dust in the secondary chamber can be easily discarded outside by removing the housing.

  According to the eighteenth aspect of the invention, even when the dust collector is placed on the floor, the casing can be easily removed by pressing the operating body downward, and a pair of dust in the secondary chamber can be removed. Layers can be easily thrown out.

It is a perspective view which shows the structure of Embodiment 1 of the dust collector which concerns on this invention. It is a perspective view which shows the state which removed the secondary chamber of the dust collection part. It is an expanded sectional view of the III-III line of FIG. It is an expanded sectional view of the IV-IV line of FIG. It is an expanded sectional view of the VV line of FIG. It is an expanded sectional view of the VI-VI line of FIG. It is a top view which shows the state which removed a part. It is a top view which shows the structure of a dust collection part. It is a rear view which shows the structure of Embodiment 1 of the dust collector which concerns on this invention. It is a side view which shows the structure of Embodiment 1 of the dust collector which concerns on this invention. It is a cross-sectional top view which shows the structure of Embodiment 2 of the dust collector which concerns on this invention. It is a vertical side view which shows the structure of the principal part of Embodiment 2 of the dust collector which concerns on this invention. It is a cross-sectional top view which shows the structure of the principal part of Embodiment 2 of the dust collector which concerns on this invention. It is a vertical side view which shows the structure of the principal part of Embodiment 2 of the dust collector which concerns on this invention. It is the top view which abbreviate | omitted a part of Embodiment 2 of the dust collector which concerns on this invention. It is a schematic perspective view of the principal part of Embodiment 2 of the dust collector which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 3 Rotating brush 4 Dust taking-in part 41 Taking-in passage 42 Leakage suppression wall 5 Dust collecting part 51 Primary chamber 51a Dust collection port 51d Bottom surface 51e Convex strip 52 Communication path 53 Secondary chamber 53b Inclined surface 53d Vent 56 Backflow prevention valve 57 Communication path 57a Opening 58 Housing 6 Electric motor 9 Electric fan (conveying means)
11 Operation body 11d Locking hole (Locking part)

Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments thereof.
Embodiment 1

  1 is a perspective view showing a configuration of a dust collecting apparatus according to the present invention, FIG. 2 is a perspective view of a dust collecting unit with a secondary chamber removed, and FIG. 3 is an enlarged cross-sectional view taken along line III-III in 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 VV in FIG. 1, FIG. 6 is an enlarged sectional view taken along line VI-VI in FIG. FIG. 8 is a plan view showing the configuration of the dust collecting unit, FIG. 9 is a rear view showing the configuration of the first embodiment, and FIG. 10 is a side view showing the configuration of the first embodiment. is there.

  The dust collecting apparatus shown in FIG. 1 is a self-propelled type that serves as a cleaning robot, and has a truck 2 supported by a plurality of traveling wheels 1 and a dust take-up having a rotating brush 3 rotatably supported by the carriage 2. Part 4, disposed above rotating brush 3, dust collecting part 5 for collecting dust taken in from dust taking part 4, and brush drive disposed above part of dust collecting part 5 And an electric motor (not shown) for driving the traveling wheels. The rotating brush 3 generates an air flow for sending the dust taken in from the dust taking-in portion 4 to the dust collecting portion 5. In the present invention, the air flow for sending the dust taken in from the dust take-in part 4 to the dust collecting part 5 is generated by the rotating brush 3 in this way, so that the suction force is as in a normal vacuum cleaner. Dust can be sent to the dust collecting unit 5 without using a large fan that is always in operation for generation.

  In addition, the dust collector which concerns on this invention has a flat substantially circular shape as a whole, and FIG. 1 has shown the rear part of the dust collector which concerns on this invention. In FIG. 1, the direction on the right side is the traveling direction, and the dust intake portion 4 is located at a position behind the traveling wheel 1 and in the vicinity of the traveling wheel 1 in the traveling direction. Thus, by making the position of the dust taking-in part 4 close to the traveling wheel 1, the width of the dust taking-in part 4 can be widened, and the amount of dust remaining when the dust collecting device is operated is reduced. be able to.

  The dust take-in portion 4 communicates with a rotating brush 3 disposed horizontally at the lower portion of the carriage 2, and a primary chamber described later on the dust collecting portion 5 around the rotating brush 3. The intake passage 41 that guides the generated airflow to the primary chamber and the outer peripheral portion of the rotary brush 3 face each other with a slight gap, and the airflow in the intake passage 41 moves from the intake passage 41 to the rotation direction of the rotary brush 3. A leakage suppression wall 42 that suppresses leakage, and a winding suppression member 44 that protrudes downward from the leakage suppression wall 42 and suppresses entrainment of outside air. The intake passage 41 is formed to have the same width as the rotating brush 3 by an arcuate 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 rotary brush 3 so as to be parallel to the axis of the rotary brush 3. Further, the intake passage 41 and the entrainment suppressing member 44 are formed to have a width corresponding to the rotating brush 3. Further, the entrainment suppressing member 44 protrudes from the rotating brush 3 at a position in the vicinity of the rotating brush 3 on the side opposite to the traveling direction of the carriage 2 so as to contact the floor surface. During the rotation, external air is caught in the gap between the dust intake 4 and the floor surface, and the dust on the floor surface is prevented from being blown off in the traveling direction.

  The rotating brush 3 has a hair or rubber blade attached to the outer periphery of a light metal shaft such as aluminum, and both ends are horizontally supported by the carriage 2 via rolling bearings 7 and 7. . Further, one end of the rotating brush 3 is interlocked and connected to the output shaft of the electric motor 6 via the transmission band 8, and in the direction opposite to the rotation direction of the traveling wheel 1, in other words, the direction opposite to the traveling direction of the carriage 2. It is configured to be rotated.

  The dust collecting unit 5 has a flat shape arranged in parallel with the axis of the rotary brush 3, and stores a primary chamber 51 that stores dust scraped up by the rotation of the rotary brush 3, and a communication path 52 in the primary chamber 51. A secondary chamber 53 that is larger than the primary chamber 51, and an electric fan 9 disposed outside the secondary chamber 53 generates a conveying air flow from the primary chamber 51 to the secondary chamber 53. It is configured. The primary chamber 51 has a length corresponding to the rotating brush 3 and has a flat first housing 54 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. The opening 52a of the communicating path 52 is provided in the circumferential direction one end part of the surrounding wall 51b. The primary chamber 51 is disposed so as to be approximately the same height as the upper peripheral surface of the rotary brush 3, and the dust collection port 51 a communicates with the outlet 41 a of the intake passage 41. The bottom surface of the primary chamber 51 is disposed so as to be higher than the rotation center of the rotary brush 3. Further, the bottom surface 51d of the primary chamber 51 has a lower opening 52a side of the communication passage 52 than the dust collection port 51a. In addition, a plurality of curved ridges 51e that protrude from the peripheral wall 51b at equal intervals protrude from the bottom surface 51d. The ridges 51e guide the dust collected in the primary chamber 51 to the communication passage 52 and provide a reverse flow resistance toward the intake passage 41, and are relatively low in height. The communication passage 52 is formed to be the same as or below the bottom surface 51d of the primary chamber 51.

  The secondary chamber 53 has a lower bottom surface 53a that is lower than the opening 52b corresponding to the opening 52a, and a higher bottom surface 53c that is higher than the lower bottom surface 53a and the opening 52b and continues to the lower bottom surface 53a by an inclined surface 53b. The lower bottom 53a portion (opening 52b side) is juxtaposed to the side of the opening 52a of the primary chamber 51, and the high bottom 53c portion (anti-ream) is formed. The passage 52 side) is placed above the primary chamber 51. The lower bottom surface 53a is substantially L-shaped in plan view, and a communication hole 52b is provided in a step portion on one side, and the step portion on the other side is an inclined surface 53b. Further, a vent hole 53d penetrating from the outside to the anti-communication passage side is provided on the anti-communication passage side wall of the high-level bottom surface 53c.

  A backflow prevention valve 56 that prevents the dust in the secondary chamber 53 from flowing back from the communication passage 52 to the primary chamber 51 is swingably provided at the lower bottom surface 53 a of the secondary chamber 53. The backflow prevention valve 56 is elastically pressed in a direction to close the communication passage 52 with a relatively small force, and is configured to open by the air flow generated by the electric fan 9. The first casing 54 and the second casing 55 are detachably mounted.

  The electric fan 9 is located above the anti-communicating passage side of the primary chamber 51 and is placed on the side of the secondary chamber 53, and the filter 10 is interposed between the electric fan 9 and the vent 53 d of the secondary chamber 53. Is arranged so that the electric fan 9 is driven to suck the air in the secondary chamber 53 and generate a transport airflow for transporting the dust in the primary chamber 51 to the secondary chamber 53. ing. The electric fan 9 is composed of a turbo fan that is intermittently driven, and constitutes conveying means for intermittently conveying the dust in the primary chamber 51 to the secondary chamber 53.

  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 carriage 2 while the carriage 2 is traveling. By the rotation of the rotating brush 3, an air flow is generated in the intake passage 41, and dust on the floor is scraped up by the rotating brush 3. Due to the scraping by the rotating brush 3 and the airflow, the scraping dust can be conveyed from the intake passage 41 to the primary chamber 51. In this case, dust having a relatively small specific gravity is conveyed by the air flow, and dust having a relatively large specific gravity is scraped up by the rotating brush, so that the intake efficiency can be increased. Further, since the leakage suppression wall 42 faces the outer peripheral portion of the rotating brush 3 with a slight gap, the dust adhering to the outer peripheral portion of the rotating brush 3 is squeezed by the boundary portion 42a between the leakage suppressing wall 42 and the intake passage 41. It can be scraped off, and dirt on the rotating brush 3 can be reduced.

Since the electric fan 9 is not driven at the start of cleaning, the dust transferred from the intake passage 41 is stored in the primary chamber 51 for a certain period of 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 dust in the primary chamber 51 is transported from the communication path 52 to the secondary chamber 53 by this transport airflow. Is done. In this case, since the secondary chamber 53 has a lower bottom surface on the opening 52b side 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 small specific gravity is passed from the communication passage 52 side to the anti-communication passage. Dust having a large specific gravity can be stored on the communication path 52 side. Further, since the bottom surface of the primary chamber 51 is disposed so as to be higher than the rotation center of the rotary brush 3, a space can be secured on the lower side. For this reason, since the communication path 52 can be easily provided at a low position, the movement of dust from the primary chamber 51 to the secondary chamber 53 can be performed even by the electric fan 9 having a small output. After the elapse of a certain time, the driving of the electric fan 9 is stopped, but the rotating brush 3 is rotating even when the electric fan 9 is driven and stopped, and the dust taken in by the dust taking-in portion 4 is primary. Stored in chamber 51. The electric fan 9 may be driven artificially by pushing a driving switch, or may be automatically driven every predetermined time. 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 timed by a time measuring means 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. Furthermore, an air flow generating means such as a small fan, which is always driven, may be provided to assist the conveyance of dust by the air flow generated by the rotation of the rotating brush 3. In this case, the airflow generating means is provided in the intake passage 41 and the like between the electric fan 9 and the secondary chamber 53, for example. Further, as an auxiliary air flow generating means, instead of newly providing an auxiliary fan, the electric fan 9 is always driven at a weak output, and intermittently driven at a high output and stored in the primary chamber 51. The stored dust may be conveyed to the secondary chamber 53.
Embodiment 2

  11 is a cross-sectional plan view showing the configuration of the second embodiment of the dust collector according to the present invention, FIG. 12 is a longitudinal side view showing the configuration of the main part, and FIG. 13 is a cross-sectional plan view showing the configuration of the main part. 14 is a longitudinal side view showing the configuration of the main part, FIG. 15 is a plan view with a part omitted, and FIG. 16 is a schematic perspective view of the main part.

  This dust collector has basically the same configuration as that of the first embodiment, but instead of having a communication passage 52 on one side in the longitudinal direction of the dust collection port 51a of the primary chamber 51 as in the first embodiment. In addition, a communication passage 57 that opens to the opposite side of the dust collection port 51a is provided, and a housing 58 provided with the secondary chamber 53 can be removed, and an operation body 11 that locks the housing 58 is provided. Is.

  The primary chamber 51 has a length corresponding to the rotating brush 3 and has a flat first housing 54 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. The communication passage 57 has an opening 57a in the central portion in the circumferential direction of the peripheral wall 51b opposite to the dust collection port 51a. Further, the primary chamber 51 has a bottom surface on the communication passage 57 side lower than the dust collection port 51a side by curving upward on the dust collection port 51a side.

  The secondary chamber 53 includes a housing 58 formed in a fan shape in plan view, in other words, a substantially arc shape, and is detachably mounted on the upper side of the primary chamber 51 in the longitudinal direction. . A drooping portion 58a having a cavity as a communication passage 57 is integrally provided at the bottom of the casing 58, and the airflow derivative 12 is detachably fitted into the drooping portion 58a. Further, a vent 53d is provided on one side of the housing 58, and a pair of engaging claws 58b, 58b and engaging claws 58b, A holding frame portion 58c projecting between 58b is provided, and the urging body 13 is accommodated in the holding frame portion 58c.

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

  The airflow derivative 12 shields the upper side of the drooping portion 58a, guides dust taken from the primary chamber 51 to a position separated from the vent 53d of the secondary chamber 53, shields the upper side of the cavity, Further, it has a ceiling wall 12a facing the inclined surface 58e, a side wall 12b connected to the ceiling wall 12a, and a fitting part 12c fitted into the hanging part 58a, and is conveyed from the opening 57a into the hanging part 58a. The formed dust is configured to be conveyed to the secondary chamber 53 along the communication path 57 between the inclined surface 58e and the top wall 12a.

  The urging body 13 urges the housing 58 in the removal direction with respect to the carriage 2 so that the housing 58 can be automatically moved in the removal direction when the locking of the housing 58 by the operating body 11 is released. And is accommodated in a movable member 14 having a hat shape in cross section that is freely held in the horizontal direction in the holding frame portion 58c.

  The operating body 11 is mounted on the carriage 2 so as to be movable up and down, and is biased upward by a biasing spring 15. The operating body 11 has a plate-like head portion 11a that has an arc shape in plan view, a rectangular shaft portion 11c that is suspended from the center of the head portion 11a and has a pin hole 11b, and both sides from the lower end of the rectangular shaft portion 11c. And a pair of leg portions 11e, 11e having locking holes 11d, 11d corresponding to the engaging claws 58b, 58b, and a cart by a pin 16 inserted into the pin hole 11b of the square shaft portion 11c. 2 is attached to be movable up and down. The leg portions 11e and 11e are slidable up and down along a holding frame portion 58c that forms a rectangular parallelepiped of the casing 58 so as to eliminate rattling of the operating body 11 with respect to the carriage 2 and rattling of the casing 58. It is configured. Further, an urging spring 15 is interposed between the head portion 11a and the carriage 2, and the urging spring 15 urges the operating body 11 upward so that the engaging claws 58b and 58b are engaged with the locking holes. 11d and 11d are configured to be locked.

  Since the self-propelled dust collector configured as described above has the same operation as that of the first embodiment, detailed description thereof is omitted. Dust transferred from the intake passage 41 to the primary chamber 51 by the air flow generated by the rotation of the rotary brush 3 and the rotation of the rotary brush 3 is transferred to the opening 57 a of the communication passage 57, and further, the dust in the air flow derivative 12. It is conveyed into the secondary chamber 53 along the locking surface 58e of the passage 57. In this case, the primary chamber 51 is curved upward on the dust collection port 51a side, and the bottom surface on the communication passage 57 side is lower than the dust collection port 51a side. Therefore, the dust collection device is lifted during cleaning. At this time, the dust collection in the primary chamber 51 can be made difficult to flow back to 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, loss of the air flow generated by the rotating brush 3 can be reduced, and even a relatively small air flow can be obtained. The dust in the primary chamber 51 can be transferred to the secondary chamber 53. Moreover, since the communication passage 57 communicating with the primary chamber 51 and the secondary chamber 53 is inclined with respect to the bottom surface of the secondary chamber 53, the air flow necessary for conveying the dust in the primary chamber 51 to the secondary chamber 53. 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, the dust transferred to the secondary chamber 53 falls into the communication passage 57. Or backflow to the communication path 57 can be prevented.

  When the dust collected in the secondary chamber 53 is thrown out, the casing 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 thrown away. . When the head 11a is pushed, the entire operation body 11 overcomes the urging force of the urging spring 15 and moves downward, the engagement with the engagement claws 58b and 58b of the locking holes 11d and 11d is released, and the housing 58 moves in the removal direction by the urging force of the urging body 13. Therefore, the housing 58 can be easily removed even when the dust collector is placed on the floor. Further, after the dust in the secondary chamber 53 is thrown outside, the hanging portion 58a of the housing 58 is fitted to the carriage 2, and the head 11a of the operating body 11 is pushed downward, whereby the engaging claws 58b and 58b are moved. The locking holes 11d and 11d can be locked. In this case, the operating body 11 moves upward by the urging force of the urging spring 15, can maintain the engaged state with the engaging holes 11 d and 11 d of the engaging claws 58 b and 58 b, and maintain the mounting state of the housing 58. be able to.

  Although the self-propelled dust collector has been described in the above-described embodiment, the dust collector according to the present invention may be a manual type.

  It can be applied to a cleaning robot that incorporates a sensor that detects an obstacle and a control unit that drives and controls a traveling wheel to automatically clean indoors and outdoors.

Claims (18)

In a dust collecting apparatus having a dust collecting portion having a rotating brush and a dust collecting portion for collecting dust taken in from the dust collecting portion, the dust collecting portion is dust scraped up by rotation of the rotating brush. A primary chamber that stores the primary chamber and a secondary chamber that communicates with the primary chamber via a communication path, and includes a transport unit that intermittently transports the dust in the primary chamber to the secondary chamber. Dust collector. The dust collector according to claim 1, wherein the rotating brush generates an air flow for sending the dust taken into the dust taking part to the dust collecting part. Around the rotating brush, an intake passage communicating with the primary chamber, and a leakage suppression wall for suppressing airflow generated by the rotation of the rotating brush from leaking in the rotating direction of the rotating brush. The dust collector according to claim 1 or 2, comprising: The dust collecting device according to claim 3, wherein the intake passage has a width approximately equal to a width of the rotating brush. 5. An auxiliary air flow generating means for generating an air flow for assisting an air flow generated by the rotating brush so as to send the dust taken into the dust taking unit to the dust collecting unit. The dust collector described. The dust collecting device according to any one of claims 1 to 5, wherein the communication path is the same as or below the bottom surface of the primary chamber. 2. A carriage supported by a traveling wheel and provided with the dust intake part and the dust collection part is provided, and a bottom surface of the primary chamber is provided at a position higher than a rotation center of the rotary brush. The dust collector as described in any one of thru | or 6. The dust collector according to any one of claims 3 to 7, wherein a bottom surface of the primary chamber is lower on the communication path side than a dust collection port communicating with the intake path. The bottom surface of the primary chamber has a ridge that guides the dust collected in the primary chamber to the communication path and serves as a reverse flow resistance toward the intake path. The dust collector described in 1. The dust collector according to claim 1, wherein the secondary chamber is larger than the primary chamber. The said secondary chamber makes the said communicating path side lower than the anti-communicating path side, and has the inclined surface which inclines from the said communicating path side to an anti-communicating path. Dust collector. The communication passage has an opening on the side opposite to a dust collection port where the primary chamber communicates with the intake passage, and an anti-communication passage side of the secondary chamber is disposed above the primary chamber. The dust collector according to 3 to 11. The dust collector according to claim 11 or 12, further comprising an air vent that opens to an anti-communicating passage side of the secondary chamber, and the transfer means is an electric fan disposed outside the air vent. The dust collector according to claim 13, further comprising means for automatically operating the electric fan intermittently. The dust collector according to any one of claims 1 to 14, further comprising a backflow prevention valve that prevents the dust in the secondary chamber from flowing back into the primary chamber. The dust collector according to any one of claims 1 to 15, wherein an electric motor linked to the rotating brush is disposed above the rotating brush. The dust collector according to any one of claims 1 to 16, further comprising a housing that is detachably mounted and has the secondary chamber. 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.

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