JP6625831B2 - Bedding inlet and vacuum cleaner - Google Patents

Description

  An embodiment according to the present invention relates to a bedding suction opening body and a vacuum cleaner.

  In a plan view, the front half is wide left and right, and the rear half protrudes rearward. A T-shaped inlet main body, a pair of front wheels provided at left and right protruding ends of the T-shape, and a T-shaped lower end 2. Description of the Related Art A suction port for a bedding of a vacuum cleaner having a rear wheel to be used is known.

  This conventional bedding suction port body has a swingable joint above the rear wheel.

  The conventional bedding inlet has a long front-rear length as well as a lateral width, and a large axle distance (a so-called wheelbase) between the front wheel and the rear wheel. This large inter-axle distance is considered to prevent the suction port body from curling forward or falling backward from the surface to be cleaned which is soft like bedding.

JP 2009-66331 A

  If the axle distance between the front wheel and the rear wheel is large, as in a conventional bedding suction port, a soft surface to be cleaned, such as bedding, is likely to stick to the suction port due to negative pressure.

  However, if the front wheel and the rear wheel are simply brought closer to each other, the suction port body is more likely to be entangled or lowered rearward, and the traveling performance is reduced.

  Thus, the present invention proposes a bedding suction port for a bedding and a vacuum cleaner that prevents sticking of the surface to be cleaned by a negative pressure even on a soft cleaning surface such as a bedding.

Bedding suction port body according to an embodiment of the present invention for solving the above problems includes: a suction port body having a suction port on the bottom, a front wheel provided on the suction port body, Re et al provided in the suction port body A roller which is provided rearward and below the axle center line of the front wheel , and which is provided along the rear of the suction port and extends substantially over the entire width of the suction port; and a diaphragm provided on the bottom surface of the suction port main body. A connecting pipe, and a connecting pipe, which is arranged in a projection of the roller in a side view and forward of an axle center line of the roller, and around a rotation center line extending parallel to the axle center line of the roller. A pipe supporting shaft that swingably supports the diaphragm, the diaphragm, the suction port, and the roller are sequentially provided from the front side of the suction port main body, and the diaphragm and the roller Pinch, substantially said suction Extends over the entire width of the body, the center line of the tube support shaft is disposed inside the outer diameter of the front wheel in a side view, and is disposed inside the outer diameter of the roller.

  Also, the vacuum cleaner according to the embodiment of the present invention, a vacuum cleaner main body, an electric blower housed in the vacuum cleaner main body to generate a negative pressure, and sucks air with the negative pressure generated by the electric blower. And a suction port body for the bedding.

The perspective view of the vacuum cleaner concerning the embodiment of the present invention. The perspective view which looked at the suction opening object for bedding concerning the embodiment of the present invention from the left front side. The perspective view which looked at the suction mouth object for bedding concerning the embodiment of the present invention from the left rear side. The bottom view showing the suction opening object for bedding concerning the embodiment of the present invention. The side view showing the suction mouth object for bedding concerning the embodiment of the present invention. The longitudinal section of the suction mouth object for bedding concerning the embodiment of the present invention. The longitudinal section of the suction mouth object for bedding concerning the embodiment of the present invention. The longitudinal section of the suction mouth object for bedding concerning the embodiment of the present invention. The conceptual diagram of the use condition of the suction opening body for bedding which concerns on embodiment of this invention.

  An embodiment of a bedding suction opening and a vacuum cleaner according to the present invention will be described with reference to FIGS. 1 to 9.

  FIG. 1 is a perspective view of the vacuum cleaner according to the 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. The vacuum cleaner 1 includes a cleaner main body 2 that can travel on a surface to be cleaned, and a tube portion 3 that is detachable from the cleaner main body 2. The tube 3 is fluidly connected to the cleaner body 2.

  The cleaner main body 2 includes a main body case 5, a pair of wheels 6 provided on left and right sides of the main body case 5, a dust separating unit 7 detachably attached to a front half of the main body case 5, and a main body case 5. The electric blower 8 is accommodated in the latter half of the electric blower 5, a main body control unit 9 that mainly controls the electric blower 8, and a power cord 11 that guides electric power to the electric blower 8.

  The cleaner main body 2 operates the electric blower 8 with electric power supplied through the power cord 11 to generate a negative pressure, and causes the negative pressure to act on the pipe portion 3. The vacuum cleaner 1 sucks dust-containing air (hereinafter referred to as “dust-containing air”) from the surface to be cleaned by the negative pressure acting on the pipe portion 3 and separates the dust from the dust-containing air. Collects and accumulates dust after separation and exhausts air after separation.

  A main body connection port 12 is provided on the front of the main body case 5. The main body connection port 12 is a fluid inlet of the cleaner main body 2 and fluidly relays the pipe part 3 and the dust separating part 7.

  The wheels 6 are large-diameter traveling wheels and support the cleaner body 2.

  The dust separating unit 7 separates dust from the dust-containing air flowing into the cleaner body 2, collects and accumulates the dust, and sends clean air from which the dust is removed to the electric blower 8. The dust separation unit 7 may be of a centrifugal separation type, or may be of a filtration separation type such as a so-called paper pack.

  The electric blower 8 sucks air from the dust separating unit 7 to generate a negative pressure (suction negative pressure).

  The main body control unit 9 includes a microprocessor (not shown) and a storage device (not shown) for storing various operation programs executed by the microprocessor, parameters, and the like. The storage device stores a plurality of preset operation modes. The plurality of operation modes set in advance correspond to user operations accepted by the tube unit 3. Different input values (input values of the electric blower 8) are set in each operation mode. The main body control section 9 selects an arbitrary operation mode corresponding to the operation content from a plurality of preset operation modes in accordance with a user operation on the tube section 3 and reads out the operation mode from the storage section, The electric blower 8 is controlled according to the read operation mode.

  The power cord 11 supplies electric power to the cleaner body 2 from a wiring plug-in connector (not shown, a so-called outlet). A plug 14 is provided at a free end of the power cord 11.

  The tube portion 3 sucks dust-containing air from the surface to be cleaned and guides the dust-containing air to the cleaner body 2 by the negative pressure applied from the cleaner body 2. The pipe part 3 is a connection pipe 19 as a joint detachably connected to the cleaner body 2, a dust collection hose 21 fluidly connected to the connection pipe 19, and fluidly connected to the dust collection hose 21. The operation tube 22, a grip 23 protruding from the operation tube 22, an operation unit 24 provided on the grip 23, an extension tube 25 detachably connected to the operation tube 22, and an extension tube 25. And a bedding suction port 26 which is detachably connected.

  The connection pipe 19 is a joint detachable from the main body connection port 12, and is fluidly connected to the dust separating unit 7 through the main body connection port 12.

  The dust collection hose 21 is a long, flexible, substantially cylindrical hose. One end (here, a rear end) of the dust collection hose 21 is fluidly connected to the connection pipe 19. The dust collection hose 21 is fluidly connected to the dust separation unit 7 through the connection pipe 19.

  The hand operation pipe 22 relays the dust collection hose 21 and the extension pipe 25. One end (here, the rear end) of the hand operation tube 22 is fluidly connected to the other end (here, the front end) of the dust collection hose 21. The hand operation pipe 22 is fluidly connected to the dust separation unit 7 through the dust collection hose 21 and the connection pipe 19 in order.

  The grip portion 23 is a portion that is gripped by a user's hand to operate the vacuum cleaner 1. The grip portion 23 projects from the hand control tube 22 in an appropriate shape that can be easily gripped by the user's hand.

  The operation unit 24 includes switches corresponding to each operation mode. Specifically, the operation unit 24 includes a stop switch 24 a corresponding to an operation stop operation of the electric blower 8, and a start switch 24 b corresponding to an operation start operation of the electric blower 8. The stop switch 24a and the start switch 24b are electrically connected to the main body control unit 9. The user of the electric vacuum cleaner 1 can select the operation mode of the electric blower 8 by operating the operation unit 24. The start switch 24b also functions as an operation mode selection switch during operation of the electric blower 8. In this case, the main body control unit 9 switches the operation mode in the order of strong → medium → weak → strong →... Every time an operation signal is received from the start switch 24b. Note that the operation unit 24 may individually 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 having a telescopic structure in which a plurality of cylindrical bodies are superimposed is an elongated and substantially cylindrical tube which can be extended and contracted. At one end (here, the rear end) of the extension tube 25, a joint structure that is detachable from the other end (here, the front end) of the hand operation tube 22 is provided. The extension pipe 25 is fluidly connected to the dust separation unit 7 through the hand operation pipe 22, the dust collection hose 21, and the connection pipe 19.

  The bedding suction port body 26 can travel on a soft surface to be cleaned such as bedding or a curtain, and has a suction port 28 on the bottom surface facing the surface to be cleaned in the running state. One end (here, the rear end) of the bedding suction opening body 26 has a joint structure (not shown) detachably attached to the other end (here, the front end) of the extension tube 25. Is provided. This joint structure can be attached to and detached from the operation tube 22 instead of the extension tube 25. The bedding suction port body 26 is fluidly connected to the dust separating unit 7 through the extension pipe 25, the hand operation pipe 22, the dust collection hose 21, and the connection pipe 19. That is, the bedding suction port body 26, the extension pipe 25, the hand operation pipe 22, the dust collection hose 21, the connection pipe 19, and the dust separation unit 7 are suction air paths from the electric blower 8 to the suction port 28.

  The vacuum cleaner 1 starts the electric blower 8 when the start switch 24b is operated. For example, when the start switch 24b is operated in a state where the electric blower 8 is stopped, the electric vacuum cleaner 1 first operates the electric blower 8 in the strong operation mode, and when the start switch 24b is operated again, the electric blower 8 is operated in the medium operation mode, and when the start switch 24b is operated three times, the electric blower 8 is operated in the weak operation mode, and so on. The strong operation mode, the medium operation mode, and the weak operation mode are a plurality of operation modes set in advance, and the input value to the electric blower 8 is small in the order of the strong operation mode, the medium operation mode, and the weak operation mode. The started electric blower 8 exhausts air from the dust separating unit 7 to make the air negative pressure (suction negative pressure).

The negative pressure acting on the dust separating section 7 is sequentially passed through the main body connection port 12, the connection pipe 19, the dust collection hose 21, the hand operation pipe 22, the extension pipe 25, and the bedding suction port body 26 to the suction port 28. Works. The vacuum cleaner 1 sucks dust with air and cleans the surface to be cleaned by the negative pressure acting on the suction port 28. The dust separation unit 7 separates dust from the dust-containing air sucked into the vacuum cleaner 1 and accumulates the dust, and sends the air separated from the dust-containing air to the electric blower 8. The electric blower 8 exhausts the air sucked from the dust separating unit 7 to the outside of the cleaner body 2.
The bedding suction opening 26 will be described in more detail.

  FIG. 2 is a perspective view of the suction opening for bedding according to the embodiment of the present invention as viewed from the left front side.

  FIG. 3 is a perspective view of the bedding suction opening according to the embodiment of the present invention as viewed from the left rear side.

  FIG. 4 is a bottom view showing the suction port body for bedding according to the embodiment of the present invention.

  FIG. 5 is a side view showing the bedding suction opening according to the embodiment of the present invention.

  FIG. 6 is a longitudinal sectional view of the suction port body for bedding according to the embodiment of the present invention.

  FIG. 7 is a longitudinal sectional view of the bedding suction opening according to the embodiment of the present invention.

  FIG. 8 is a longitudinal sectional view of the bedding suction opening according to the embodiment of the present invention.

  2 to 8 show the suction port main body 29 with the outer shell removed. FIGS. 6 and 7 are views showing a cross section passing through the center of the connection pipe 31, and FIG. 8 is a view showing a cross section passing through the side of the connection pipe 31.

  As shown in FIGS. 2 to 8, the bedding suction port body 26 according to the present embodiment includes a suction port main body 29 having a suction port 28 on a bottom surface 32, and a front wheel 35 and a rear wheel 36 provided on the suction port main body 29. A swingable connection pipe 31 provided in the suction port main body 29 and fluidly connected to the suction port 28, and provided on a bottom surface 32 of the suction port main body 29 and provided in front of the suction port 28. And a vibrating plate 37 extending over substantially the entire width of the suction port 28.

  Here, the forward direction of the bedding suction opening body 26 (solid arrow F in FIG. 2) is the front, and the opposite direction is the rear. Further, the left side when viewing the front from behind is the left side, and the opposite direction is the right side.

  The suction port main body 29 has an elongated cylindrical appearance that is short in the front-rear direction, which is the traveling direction, and wide in the left-right direction, specifically, extends in the left-right direction.

  A concave recess 29a is provided at the rear of the outer shell (not shown) of the suction port main body 29 in order to avoid the interference with the connection pipe 31 and secure the swing range.

  On the bottom surface 32 of the suction port main body 29, a vibration plate 37 and a suction port 28 are provided in order from the front side. A rear wheel 36 is provided behind the suction port 28. The diaphragm 37 and the rear wheel 36 extend across substantially the entire width of the suction port main body 29 with the suction port 28 interposed therebetween.

  When the front wheel 35 and the rear wheel 36 are in contact with the same plane P, the bottom surface 32 of the suction port main body 29 is inclined backward and downward. In other words, the bottom surface 32 of the suction port main body 29 is inclined backward and downward with respect to a virtual plane P contacting the front wheel 35 and the roller 38.

  The suction port main body 29 has a suction chamber 39 having the suction port 28, a vibration chamber 41 in which the vibration plate 37 is arranged, and a machine chamber 43 for housing a motor 42 for driving the vibration plate 37. The suction chamber 39 and the diaphragm chamber 41 are open in the normal direction of the bottom surface of the suction port main body 29, while the machine chamber 43 is surrounded by the outer shell of the suction port main body 29. The suction chamber 39, the diaphragm chamber 41, and the machine chamber 43 are partitioned so as to be adjacent to each other with the bottom plate 45 of the suction port main body 29 therebetween. The diaphragm chamber 41 is provided in front of the suction chamber 39, and the machine chamber 43 is secured above the diaphragm chamber 41 and the suction chamber 39.

  The diaphragm chamber 41 is disposed immediately below the center line of the cylindrical suction port main body 29.

  The suction chamber 39 is a slit-like space that is long and narrow in the left and right directions, and most of the space is sandwiched between the diaphragm 37 and the rear wheel 36. A central portion of the suction chamber 39 in the width direction is fluidly connected to the connection pipe 31.

  The front wheel 35 has a pair of left and right sides, and is provided at each of the left and right ends of the cylindrical suction port main body 29. The front wheel 35 has an outer diameter slightly larger than the suction port main body 29. The outer periphery of the front wheel 35 is provided with irregularities over the entire periphery. These irregularities increase the gripping force on the surface to be cleaned.

  The rear wheel 36 extends over substantially the entire width of the suction port 28. The rear wheel 36 is located behind and below the center of the axle 47 of the front wheel 35 and is provided behind the suction port 28 and also serves as a roller 38 extending over the entire width of the suction port 28.

  When the front wheel 35 and the rear wheel 36 are in contact with the same plane P, when the bottom surface 32 of the suction port main body 29 is inclined backward and downward, a plane P ′ parallel to the bottom surface 32 and in contact with the front wheel 35, Even if the front and rear and up and down of the bedding suction port body 26 are determined with reference to the plane P ′ in which the wheel 36 is in a floating state, the rear wheel 36 is disposed rearward and below the axle 47 center of the front wheel 35 and I have.

  In the rear wheel 36, a part of the outer diameter overlaps with the outer diameter of the front wheel 35 in a side view, and the center of the axle 48 of the rear wheel 36 is disposed forward of the rearmost end of the front wheel 35.

  The connection pipe 31 is provided at the rear center of the suction port main body 29. The connection pipe 31 is a joint that is detachable from the extension pipe 25 of the vacuum cleaner 1, and also serves as a universal joint that connects the suction port body 29 to the extension pipe 25 so as to swing vertically.

  The connecting pipe 31 has an end opening 51 that penetrates into the upper projection of the suction port 28 in its swing range. That is, the end opening 51 of the connection pipe 31 can be exposed from the suction port 28.

  The free end 52 of the connection pipe 31 is a joint detachable from the extension pipe 25 and has a circular cross section. An end 53 of the connection pipe 31 on the side of the suction main body 29 is tapered and has a rectangular cross section. The end portion 53 on the side of the suction port main body 29 has a lower surface 55 connected linearly from the circular cross section and an upper surface 56 that approaches the lower surface 55 as the distance from the circular cross section increases. The end opening 51 of the end 53 is inclined with respect to the center line C of the circular cross section, and is longer on the lower surface 55 side than on the upper surface 56 side.

  An arc-shaped portion 57 is provided on the upper surface 56 side. The arc-shaped portion 57 maintains the fluid connection between the suction chamber 39 of the suction port main body 29 and the air passage in the connection pipe 31 in the swing range of the connection pipe 31.

  In addition, the bedding suction opening body 26 is disposed within the projection of the rear wheel 36 in front of the axle 48 center line of the rear wheel 36 in a side view, and extends parallel to the axle 48 center line of the rear wheel 36. A pipe support shaft 58 that swingably supports the connection pipe 31 around the rotation center line is provided.

  More specifically, the center line of the pipe support shaft 58 is disposed inside the outer diameter of the front wheel 35 and inside the outer diameter of the rear wheel 36 in a side view. In other words, the center line of the pipe support shaft 58 is disposed in a region where the front wheel 35 and the rear wheel 36 overlap in side view.

  The pipe support shaft 58 is disposed on a lower half side of a center line in the longitudinal direction of the connection pipe 31.

  The vibration plate 37 has a striking surface 59 parallel to the bottom surface 32 of the suction port main body 29. The vibrating plate 37 reciprocates linearly in a direction normal to the bottom surface 32 of the suction port main body 29 and comes and goes from the bottom surface 32 to beat the surface to be cleaned.

  The diaphragm 37 is of an electric type driven by an electric motor 42. A drive mechanism 61 for converting the rotational driving force of the motor 42 into a reciprocating linear motion of the diaphragm 37, for example, a crank mechanism is interposed between the electric motor 42 and the diaphragm 37. The drive mechanism 61 is housed in the machine room 43 of the suction port main body 29. The machine room 43 also houses a power supply unit 62 that supplies electric power to the electric motor 42. The power supply unit 62 adjusts the electric power supplied from the cleaner main body 2 to the electric motor 42 via electric wires (not shown) laid on the dust collection hose 21, the operation tube 22, and the extension tube 25.

  FIG. 9 is a conceptual diagram of a use state of the bedding suction opening body according to the embodiment of the present invention.

  As shown in FIG. 9, the bedding suction opening body 26 of the vacuum cleaner 1 according to the present embodiment has a particularly remarkable effect when used for a quilted futon, for example.

  First, the surface 63 of the futon as the surface to be cleaned has, for example, irregularities 65 continuous about every 20 cm by quilting processing performed on the futon. On the surface to be cleaned (surface 63), the bedding suction opening 26 is not in a mode of climbing over a mountain and jumping over a valley due to a short axle distance between the front wheel 35 and the rear wheel 36. Drive along the road. By such traveling, the bedding suction port 26 uniformly collects dust from the entire surface 63 of the surface to be cleaned.

  The vacuum cleaner 1 and the bedding suction port body 26 according to the present embodiment are located behind and below the center line of the axle 47 of the front wheel 35 and are provided alongside the suction port 28 and are substantially provided with the suction port. When the bedding suction port body 26 moves forward, the cleaning surface adhered to the suction port 28 is sent backward by the roller 38 by the negative pressure when the bedding suction port body 26 advances, the running resistance is reduced, and the forward movement is performed with a light operating force. it can.

  Further, in the vacuum cleaner 1 and the bedding suction port body 26 according to the present embodiment, since the bottom surface 32 of the suction port main body 29 is inclined backward and downward, the surface to be cleaned adhered to the suction port 28 by negative pressure is removed. The bedding suction opening 26 is easily retracted by retreating, and can be retracted with a light operating force.

  Furthermore, since the vacuum cleaner 1 and the bedding suction port body 26 according to the present embodiment are provided with a vibration plate 37 that is provided in front of the suction port 28 and substantially covers the entire width of the suction port 28, the vacuum pressure is applied by negative pressure. The user can travel with a light operating force while pulling out the cleaning surface stuck to the suction port 28 from the bedding suction port body 26.

  Therefore, according to the vacuum cleaner 1 and the bedding suction opening body 26 according to the present embodiment, even if the cleaning surface is a soft cleaning surface such as bedding, it is possible to prevent sticking of the surface to be cleaned by the negative pressure, while improving the traveling performance. Can be enhanced.

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

  While some embodiments of the invention have been described, these embodiments have been presented by way of example only, and are not intended to limit the scope of the inventions. These new embodiments can be implemented in other various forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and their equivalents.

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner 2 Vacuum cleaner main body 3 Tube part 5 Main body case 6 Wheels 7 Dust separation part 8 Electric blower 9 Main body control part 11 Power cord 12 Main body connection port 14 Insertion plug 19 Connection pipe 21 Dust collection hose 22 Hand operation pipe 23 Gripping part 24 Operation part 24a Stop switch 24b Start switch 25 Extension pipe 26 Bedding suction port 28 Suction port 29 Suction port main body 29a Depression 31 Connection pipe 32 Bottom 35 Front wheel 36 Rear wheel 37 Vibrating plate 38 Roller 39 Suction chamber 41 Vibrating plate chamber 42 motor 43 machine room 45 bottom plate 47, 48 axle 51 end opening 52 free end 53 end 55 lower surface 56 upper surface 57 arc-shaped portion 58 tube support shaft 59 hitting surface 61 drive mechanism 62 power supply unit 63 surface 65 unevenness

Claims (3)

A suction port main body having a suction port on the bottom surface,
A front wheel provided on the suction port main body,
The suction port body is provided et al is, and a rearward and downward from the axle center line of the front wheel, a roller over the entire width of substantially the suction port is parallel in the rear of the suction port,
A diaphragm provided on the bottom surface of the suction port main body,
Connecting pipe,
The connection pipe is swingably supported around a rotation center line which is disposed in the projection of the roller and ahead of the axle center line of the roller in a side view and extends parallel to the axle center line of the roller. A pipe support shaft ,
The diaphragm, the suction port, and the rollers are sequentially provided from the front side of the suction port main body,
The diaphragm and the roller sandwich the suction port and extend substantially over the entire width of the suction port main body ,
A bedding suction port body , wherein a center line of the tube support shaft is disposed inside an outer diameter of the front wheel in a side view, and is disposed inside an outer diameter of the roller . 2. The bedding suction opening body according to claim 1, wherein a bottom surface of the suction opening main body is inclined rearward and downward with respect to a virtual plane contacting the front wheel and the roller. 3. The vacuum cleaner body,
An electric blower that is housed in the cleaner body and generates a negative pressure,
A vacuum cleaner comprising: the bedding suction port body according to claim 1 or 2 , wherein the air is sucked by a negative pressure generated by the electric blower.

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