JP5868072B2 - Suction port and vacuum cleaner - Google Patents

Description

  Embodiments according to the present invention relate to a suction port body and a vacuum cleaner.

  2. Description of the Related Art A suction port body is known that includes a rod-shaped rotary brush having a large number of bristles extending in the radial direction, and a generator having a different material resistance and electrical strength from the rotary brush. The suction port discharges negative ions by friction between the rotating brush and the generator, and adsorbs the negative ions to dust charged to a reverse potential, thereby efficiently collecting dust on the surface to be cleaned.

JP 2009-136603 A

  The conventional suction port body releases negative ions by rubbing rotating brushes and generators having different orders in the charge train. The negative ions are adsorbed to the dust on the surface to be cleaned and neutralize the potential of the fine dust to improve the dust collection performance.

  By the way, since negative ions are adsorbed, it is considered that fine dust is positively charged. On the other hand, since it is difficult to remove fine fine dust from the surface to be cleaned, it is considered that the surface to be cleaned is negatively charged. For this reason, the conventional suction port body neutralizes the positive potential of dust and at the same time increases the negative potential of the surface to be cleaned. Therefore, the conventional suction port body includes a second rotating brush that is electrically grounded in addition to the first rotating brush that rubs against the generator, and removes the potential of the surface to be cleaned.

  That is, the conventional suction port body is a complicated, large, and heavy weight that includes a first brush for generating negative ions and a second brush that is electrically grounded.

  Therefore, the present invention neutralizes the potential of the dust to increase the dust collecting power, deprives the potential of the surface to be cleaned and further improves the dust collecting power, and is simpler than the conventional suction port body. A suction port body and a vacuum cleaner with a structure are proposed.

In order to solve the above-mentioned problem, a suction port body according to an embodiment of the present invention includes a suction port body having a suction port on a bottom surface, a rotatable shaft portion located in the suction port, and a rotation center line of the shaft portion. A neutralizing brush that has a plurality of charged hairs extending in a direction crossing the axis, and a neutralizing brush that extends in a direction crossing the rotation center line of the shaft portion and is electrically unconnected between the suction port body and the self-discharge When, and a charging prone body on the negative side than there and the charging bristles rotate in along the plurality of charging bristles rubbing one after another position of the shaft portion, wherein the discharging brush is the rotation of the shaft portion that neither the rubbing to the surface to be cleaned, deprives negative potential of the surface to be cleaned, which is characterized that you self-discharge.

  In addition, a vacuum cleaner according to an embodiment of the present invention includes the suction port body, an electric blower that is fluidly connected to the suction port body, and a cleaner body that houses the electric blower. To do.

The perspective view which shows the external appearance of the vacuum cleaner which concerns on embodiment of this invention. The perspective view of the top | upper surface side which shows the suction inlet concerning the embodiment of this invention. The perspective view of the bottom face side which shows the suction inlet concerning the embodiment of the present invention. The longitudinal cross-sectional view which shows the suction inlet concerning the embodiment of this invention. The top view which removes and shows an upper case from the suction inlet which concerns on embodiment of this invention.

  Embodiments of a suction port body and a vacuum cleaner according to the present invention will be described with reference to FIGS. 1 to 5.

  FIG. 1 is a perspective view showing an external appearance of a vacuum cleaner according to an embodiment of the present invention.

  As shown in FIG. 1, the vacuum cleaner 1 according to the present embodiment is a so-called canister-type vacuum cleaner. The vacuum cleaner 1 includes a cleaner body 2 that can travel on the surface to be cleaned, and a pipe portion 3 that is detachably connected to the cleaner body 2.

  The vacuum cleaner main body 2 includes a main body case 5, a pair of wheels 6 positioned on both sides of the main body case 5, a detachable dust separating and collecting portion 7 positioned in the front half of the main body case 5, and the main body case 5. The electric blower 8 located in the latter half of the main body, a main body control unit 9 that mainly controls the operation of the electric blower 8, and a power cord 11 that guides electric power to the electric blower 8.

  The main body case 5 has a main body connection port 12 as a joint to which the pipe portion 3 can be attached and detached. The main body connection port 12 is a fluid inlet of the vacuum cleaner main body 2 and fluidly connects the pipe portion 3 and the dust separation and dust collection portion 7.

  The dust separating and collecting part 7 is from air containing dust (hereinafter referred to as “dust-containing air”) that flows from the surface to be cleaned through the tube part 3 and the main body connection port 12 by the negative pressure generated by the electric blower 8. Dust is separated, collected, accumulated, and air is sent to the electric blower 8.

  The electric blower 8 sucks air passing through the dust separation and collection unit 7 and generates negative pressure.

  The main body control unit 9 includes a microprocessor (not shown) and a storage device (not shown) that stores various calculation programs and parameters executed by the microprocessor. The main body control unit 9 stores a plurality of preset operation modes in the storage device. The plurality of operation modes set in advance correspond to operation signals received from the pipe section 3 and have different input values (input values of the electric blower 8) as differences between the operation modes. When receiving the operation signal from the pipe unit 3, the main body control unit 9 selectively selects an arbitrary operation mode corresponding to the operation signal from a plurality of preset operation modes and reads it from the storage unit. The operation control of the electric blower 8 is performed according to the above.

  The power cord 11 includes a power plug 14 at the free end.

  The pipe part 3 sucks dust-containing air from the surface to be cleaned and guides it to the cleaner body 2 by the negative pressure acting from the cleaner body 2 as the electric blower 8 is operated. The pipe portion 3 includes a connection pipe 19 as a joint that is detachably connected to the cleaner body 2, a dust collection hose 21 that is fluidly connected to the connection pipe 19, and a manual operation that is fluidly connected to the dust collection hose 21. A tube 22, a gripping part 23 protruding from the hand control tube 22, an operation part 24 located on the gripping part 23, an extension tube 25 detachably connected to the hand control tube 22, and a connection detachably connected to the extension tube 25 A suction port body 26.

  The connection pipe 19 is a joint that can be attached to and detached from the main body connection port 12, and is fluidly connected to the dust separating and collecting part 7 through the main body connection port 12.

  The dust collection hose 21 is a long and flexible substantially cylindrical hose. One end of the dust collection hose 21 (here, the rear end) is connected to the connecting pipe 19. The dust collecting hose 21 is fluidly connected to the dust separating and collecting part 7 through the connecting pipe 19.

  The hand operation tube 22 is interposed between the dust collection hose 21 and the extension tube 25. One end portion (here, the rear end portion) of the hand operation tube 22 is connected to the other end portion (here, the front end portion) of the dust collecting hose 21. The hand operating tube 22 is fluidly connected to the dust separating and collecting unit 7 through the dust collecting hose 21 and the connecting tube 19.

  The grip portion 23 is a portion that the user grips with his / her hand to operate the vacuum cleaner 1. The grip portion 23 has an appropriate shape that can be easily gripped by a user with a hand and protrudes from the hand operation tube 22.

  The operation unit 24 includes a switch corresponding to each operation mode. Specifically, the operation unit 24 includes a stop switch 24 a corresponding to the operation stop operation of the electric blower 8 and an activation switch 24 b corresponding to the operation start operation of the electric blower 8. The stop switch 24 a and the start switch 24 b are electrically connected to the main body control unit 9. The user of the vacuum cleaner 1 can alternatively select the operation mode of the electric blower 8 by operating the operation unit 24. After the electric blower 8 starts operation, the start switch 24b also functions as an operation mode selection switch. In this case, every time the operation signal is received from the start switch 24b, the main body control unit 9 switches the operation mode as strong → medium → weak → strong →. The operation unit 24 may separately include a weak operation switch (not shown), a medium operation switch (not shown), and a strong operation switch (not shown) instead of the start switch 24b.

  The extension tube 25 is an elongated substantially cylindrical tube that can be expanded and contracted. The extension tube 25 has a telescopic structure in which a plurality of cylindrical bodies are overlapped. One end portion (here, the rear end portion) of the extension tube 25 is detachably connected to the other end portion (here, the front end portion) of the hand operation tube 22. The extension pipe 25 is fluidly connected to the dust separating and collecting part 7 via the hand operation pipe 22, the dust collecting hose 21 and the connecting pipe 19.

  The suction port body 26 is detachably connected to the other end portion (here, the front end portion) of the extension pipe 25. The suction port body 26 has a structure capable of running or sliding on a surface to be cleaned such as a wooden floor or a carpet, and has a suction port 28 on the bottom surface facing the surface to be cleaned in the running state or the sliding state. Further, the suction port body 26 is rotated at the suction port 28, and can rotate and rotate. The negative ion generator 30 that generates negative ions in the atmosphere of the suction port body 26. The rotary cleaning body 29 is driven to rotate. A possible electric motor 31. The suction port body 26 is fluidly connected to the dust separating and collecting part 7 through the extension pipe 25, the hand operating pipe 22, the dust collecting hose 21 and the connecting pipe 19.

  When the vacuum cleaner 1 receives the operation of the start switch 24b, the electric vacuum blower 8 starts to operate and generates a negative pressure (suction negative pressure) inside the cleaner body 2. For example, when the electric blower 8 is operated with the start switch 24b in a state where the electric blower 8 is stopped, the electric blower 8 is first operated in the strong operation mode, and then when the operation of the start switch 24b is received, the electric blower 8 is turned on. When the operation is performed in the operation mode and the operation of the start switch 24b is further received, the electric blower 8 is operated in the weak operation mode, and the following is repeated. The strong operation mode, the intermediate operation mode, and the weak operation mode are a plurality of operation modes that are set in advance, and the input values are smaller in the order of the strong operation mode, the intermediate operation mode, and the weak operation mode.

  The negative pressure generated inside the vacuum cleaner main body 2 is sucked into the suction port body 26 through the dust separating and collecting part 7, the main body connection port 12, the connection tube 19, the dust collection hose 21, the hand operation tube 22 and the extension tube 25. Acts on the mouth 28. Due to the negative pressure acting on the suction port 28, the vacuum cleaner 1 sucks dust collected on the surface to be cleaned together with air from the suction port 28 to clean the surface to be cleaned. The dust separating and collecting unit 7 separates, collects, and accumulates dust from the dust-containing air sucked by the suction port 28. The air that has been separated and cleaned from the dust-containing air passes through the dust separation and collection unit 7 and the electric blower 8 and is exhausted outside the cleaner body 2.

  The suction port body 26 will be further described in detail.

  FIG. 2 is a perspective view of the top surface side showing the suction port body according to the embodiment of the present invention.

  FIG. 3 is a bottom perspective view showing the suction port body according to the embodiment of the present invention.

  As shown in FIGS. 2 and 3, the suction port body 26 according to the present embodiment includes a box-shaped suction port body 32 having a flat, substantially rectangular parallelepiped shape that is short in the front-rear direction, which is the traveling direction, and wide in the left-right direction. And a connecting pipe portion 33 located at the center of the rear portion of the mouth main body 32.

  Here, let the advancing direction (solid arrow X in FIG. 2) of the suction inlet 26 be a front, and let the opposite direction be a back. Further, with the suction port body 26 placed on a substantially horizontal surface to be cleaned such as a floor surface, the left side (solid arrow Y in FIG. 2) when viewed from the rear is on the left, and the opposite direction is on the right And Furthermore, the + Z direction of the right-handed coordinate system orthogonal to the front-rear direction and the left-right direction of the suction port body 26 is defined as the upper side, and the opposite direction is defined as the lower side.

  The suction port body 32 has a suction port 28 located in the front half of the bottom surface 35, and includes a flow path 36 connected to the suction port 28. The suction inlet body 32 includes a box-shaped lower case 37 that opens upward, and an upper case 38 that covers the lower case 37 from above.

  The lower case 37 is the lower half of the suction port body 26 or the suction port body 32. The lower case 37 has a suction port 28 that opens widely in the front half of the bottom surface 35.

  Further, the lower case 37 includes a rear bulging portion 39 that protrudes rearward from the central portion of the rear portion and covers and protects the lower portion of the connecting pipe portion 33.

  Further, the lower case 37 includes a plurality of, for example, four wheels 41 on the bottom surface 35. When the suction port body 26 is placed on the surface to be cleaned with the bottom surface 35 facing the surface to be cleaned, the wheel 41 has a space between the bottom surface 35 and the surface to be cleaned and a suction port body 26 or a suction port body 32. It supports to the state that can run. The four wheels 41 include axles that face in the left-right direction (width direction) of the suction port body 26 and are parallel to each other in order to make the suction port body 26 move forward and backward smoothly. Further, the wheel widths of the wheels 41 arranged in the front-rear direction overlap with each other when viewed in the front-rear direction.

  Moreover, the suction inlet 26 is provided with the raising cloth 45 which has the raising 43 which is located between the wheels 41 located in a line at the front and back, and which can be grounded to the surface to be cleaned together with the wheels 41. The raised cloth 45 extends substantially in parallel with the axle of the wheel 41.

  The connection pipe part 33 is a universal joint that mechanically and fluidly connects the suction port body 26 to the extension pipe 25, and includes a rotary connection pipe part 48 and a swinging connection pipe part 49.

  The rotary connection pipe portion 48 is connected to the suction port body 32 and is rotatable about an axis (an axis that coincides with the X axis or an axis parallel to the X axis) along the front-rear direction of the suction port body 26.

  The swing connection pipe portion 49 can swing around an axis orthogonal to the rotation axis of the rotary connection pipe portion 48. The free end of the swing connection pipe portion 49 is a joint that can be attached to and detached from the extension pipe 25.

  The rotary cleaning body 29 is a rod-like rotatable brush (so-called rotary brush) that extends in the left-right direction of the suction port body 32. The rotary cleaning body 29 includes a rotatable shaft portion 51 positioned at the suction port 28, and a charging brush 52 and a charge removal brush 53 that are integrally rotated with the shaft portion 51.

  The charging brush 52 is a plurality of charged hairs 55 that extend in the direction intersecting the rotation center line of the shaft portion 51, specifically, in the radial direction of the shaft portion 51 and are arranged spirally and in multiple lines in the rotation center line direction. The charged hair 55 is nylon hair or wool that is easily positively charged in the charge train.

  The charged column is a sequence in which materials that are easily charged on the positive side are arranged on the upper side and materials that are easily charged on the negative side are arranged on the lower side when different materials are rubbed.

  The neutralizing brush 53 extends in the direction intersecting the rotation center line of the shaft portion 51, specifically, in the radial direction of the shaft portion 51, and is arranged in a spiral and multiple lines in the rotation center line direction. The neutralizing brush 53 is a plurality of Co-Si-B amorphous fibers 56, and is a discharge electrode that contacts the surface to be cleaned and takes charge of the surface to be cleaned to self-discharge. The neutralizing brush 53 may be sparse in the charged hair 55.

  In addition to the charging brush 52, the rotary cleaning body 29 may include a blade of flexible silicone rubber or the like that extends in the radial direction of the shaft and spirals in multiple directions in the direction of the rotation center line.

  FIG. 4 is a longitudinal sectional view showing a suction port body according to the embodiment of the present invention.

  As shown in FIG. 4, the suction port body 26 according to the present embodiment supports the cleaning body chamber 58 that houses the rotary cleaning body 29, the connection pipe portion 33, and the fluid between the cleaning body chamber 58 and the connection pipe portion 33. A relay pipe 59 to be connected to each other and a generator 61 located in the cleaning body chamber 58.

  The cleaning body chamber 58 is a part of a flow path having the suction port 28 as an inlet. The cleaning body chamber 58 holds the rotary cleaning body 29 in a freely rotatable state. A part of the rotary cleaning body 29, specifically, the front ends of the charging hairs 55 and the charge eliminating brush 53 protrude downward from the suction port 28, and the surface to be cleaned when the suction port body 26 is placed on the surface to be cleaned. To touch.

  The relay pipe 59 is in the suction inlet body 32 and has a flow path 36 extending in the front-rear direction. The relay pipe 59 rotatably supports the connection pipe part 33 and fluidly connects the cleaning body chamber 58 and the connection pipe part 33. Specifically, the front end of the relay pipe 59 is fluidly connected to the cleaning body chamber 58, and the rear end of the relay pipe 59 is fluidly connected to the connection pipe portion 33 and supports the connection pipe portion 33 rotatably. . Further, the relay pipe 59 includes a flange 62 that rotatably supports the connection pipe portion 33, particularly the rotary connection pipe portion 48. The flange 62 extends in a bowl shape from the open end of the relay pipe 59 in the radially outward direction. The rotary connecting pipe portion 48 covers the flange 62 and slides or slides in the circumferential direction and is integrated with the relay pipe 59.

  The relay pipe 59 is sandwiched between the lower case 37 and the upper case 38 and is firmly fixed to integrate the inlet body 32 and the connecting pipe portion 33 together.

  The generator 61 touches the tip of the charged hair 55 at a position facing the rotary cleaning body 29 while facing the rotary cleaning body 29, and is separated from the static elimination brush 53 to maintain a non-contact state. The generator 61 is in a position where the plurality of charged hairs 55 are successively touched as the shaft portion 51 of the rotary cleaning body 29 rotates. The generator 61 is a plate made of a fluororesin or polyvinyl chloride, which is easily negatively charged in the charge train.

  Further, the generator 61 is sandwiched between the lower case 37 and the upper case 38 and is held in the cleaning body chamber 58. The generator 61 is exposed from the joint portion between the lower case 37 and the upper case 38 to the outer surface of the suction port body 32, surrounds the periphery of the suction port body 32 along the joint line between the lower case 37 and the upper case 38, It also serves as a bumper that interferes with the collision between the mouth main body 32 and furniture (not shown) or pillars (not shown) in the living room.

  FIG. 5 is a plan view showing the upper case removed from the suction port body according to the embodiment of the present invention.

  As shown in FIG. 5, the suction port 28 of the suction port body 26 according to the present embodiment opens greatly in the width direction of the front half of the lower case 37. The opening edge of the suction port 28 is connected to a partition wall 63 extending in the height direction of the lower case 37. The partition wall 63 partitions the cleaning body chamber 58. The rotary cleaning body 29 is stored in the cleaning body chamber 58.

  The ceiling of the cleaning body chamber 58 is an upper case 38. That is, the lower case 37 and the upper case 38 cooperate to partition the cleaning body chamber 58.

  The relay pipe 59 is located at the center of the rear half of the lower case 37. The relay pipe 59 is a pipe having a maximum diameter substantially the same as that of the connection pipe portion 33, particularly the rotary connection pipe portion 48, and substantially fits in the front projection region S (between the two-dot chain lines in FIG. 5). .

  The electric motor 31 is located on either the left or right side of the relay pipe 59 that forms the flow path 36, specifically on the left side, and is housed in the lower case 37. The electric motor 31 rotates and drives the rotary cleaning body 29 via an endless belt 65 that is housed in the left end portion of the lower case 37 and extends in the front-rear direction.

  The wheel pair 66 in the vicinity of the opening edge of the suction port 28 is close to the relay pipe 59 in a plan view and sandwiches it from the left and right. The distance between the wheel pair 66 (so-called tread) is positioned so as to be close to the relay pipe 59 while slightly exceeding the width dimension of the relay pipe 59 in the left-right direction.

  On the other hand, the wheel pair 67 positioned at the rear bulge portion 39 of the lower case 37 is close to the connecting pipe portion 33, more specifically, the rotating connecting pipe portion 48 in plan view, and sandwiches it from the left and right. The distance between the wheel pair 67 is positioned so as to approach the rotary connecting pipe part 48 while slightly exceeding the diameter of the rotary connecting pipe part 48.

  The suction port body 26 configured in this way rotates the rotary cleaning body 29 by driving the electric motor 31. When the rotary cleaning body 29 rotates, the charging brush 52 sequentially rubs against the generator 61 and the surface to be cleaned as the shaft portion 51 rotates. Then, the charging brush 52 is positively charged and the generator 61 is negatively charged. The charged generator 61 emits negative ions. Some of these negative ions are adsorbed to dust that is positively charged, and neutralize the potential of the dust.

  On the other hand, when the rotary cleaning body 29 rotates, the static elimination brush 53 rubs against the surface to be cleaned as the shaft portion 51 rotates. If it does so, the static elimination brush 53 will take the negative electric potential of a to-be-cleaned surface, and will self-discharge this.

  In other words, the positively charged dust loses or lowers the positive potential by the negative ions generated by the cooperation of the charging brush 52 and the generator 61, and the surface to be negatively charged is negatively charged by the neutralizing brush 53. Lost or reduced.

  As a result, the electrical coupling force between the dust and the surface to be cleaned is lost or reduced, and the dust collection force of the suction port body 26 is improved.

  In addition, it is considered that the actual dust is a mixture of positively charged particles and negatively charged particles. However, dust charged to the same polarity as the surface to be cleaned is easily collected by the air sucked by the suction port body 26 and the rotary cleaning body 29.

  The suction port body 26 according to the present embodiment includes a static discharge brush 53 capable of self-discharge, a charging brush 52 that generates negative ions, and a generator 61 in a single rotary cleaning body 29, thereby providing a conventional suction port. A plurality of rotating brushes are not required unlike the mouth body, and the suction port body 32 can be reduced in size, weight, and structure can be simplified.

  In addition, since the suction port body 26 according to the present embodiment includes the neutralizing brush 53 that self-discharges, an electrical connection is required between the rotary cleaning body 29 that is relatively rotating and the suction port body 32. In addition, the suction port body 32 can be further reduced in size, weight, and structure.

  Therefore, according to the vacuum cleaner 1 and the suction port body 26 according to the present embodiment, it is possible to neutralize the potential of the dust and increase the dust collecting power, and to further improve the dust collecting power by depriving the potential of the surface to be cleaned. In addition, a simple structure can be provided as compared with the conventional suction port body.

  The vacuum cleaner 1 according to the present invention is not limited to the canister type vacuum cleaner 1, and may be an upright type, a stick type, a handy type, or an autonomous type vacuum cleaner 1.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner 2 Vacuum cleaner main body 3 Pipe part 5 Main body case 6 Wheel 7 Dust separation dust collection part 8 Electric blower 9 Main body control part 11 Power cord 12 Main body connection port 14 Power plug 19 Connection pipe 21 Dust collection hose 22 Hand control pipe 23 Grasping part 24 Operation part 24a Stop switch 24b Start switch 25 Extension pipe 26 Suction port body 28 Suction port 29 Rotating cleaning body 30 Negative ion generator 31 Electric motor 32 Suction port body 33 Connecting pipe part 35 Bottom surface 36 Channel 37 Lower case 38 Upper case 39 Rear bulging part 41 Wheel 43 Raised 45 Raised cloth 48 Rotating connecting pipe part 49 Oscillating connecting pipe part 51 Shaft part 52 Charging brush 53 Static elimination brush 55 Charging hair 56 Amorphous fiber 58 Cleaning body chamber 59 Relay pipe 61 Generator 62 Flange 63 Partition wall 65 Belt 66, 67 Wheel pair

Claims (3)

A suction port body having a suction port on the bottom surface;
A rotatable shaft located at the inlet;
A charging brush having a plurality of charged hairs extending in a direction intersecting the rotation center line of the shaft portion;
A neutralizing brush that extends in a direction intersecting the rotation center line of the shaft portion and can be self-discharged electrically non-connected between the suction port body, and
A generator that is in a position where the plurality of charged hairs rub one after another as the shaft rotates, and is more easily charged to the negative side than the charged hairs ,
The charge-eliminating brush, the with the rotation of the shaft portion rubbing the surface to be cleaned, deprives negative potential of the surface to be cleaned, which suction port body, wherein that you self-discharge. The charged hair is longer than the static elimination brush, and when the suction port body is placed on the surface to be cleaned with the bottom surface facing the surface to be cleaned, the charged hair is rotated by the shaft portion. suction port body according to claim 1, characterized in that Ru rubbing sequentially to the generator and the surface to be cleaned nor with. A suction port according to claim 1 or 2,
An electric blower fluidly connected to the suction port body;
And a vacuum cleaner main body for housing the electric blower.

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