JP2016112076A - Stick-type vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stick-type vacuum cleaner having an extension tube which can be easily extended while a handle is held, and can correspond to various kinds of usage scenes.SOLUTION: A stick-type vacuum cleaner 1 includes: a cleaner body 3 which has a handle 2 and can be manually operated; an electric blower 8 which is housed in the cleaner body 3 to cause suction negative pressure; and a stretchable extension tube 5 fluidically connected to the suction side of the electric blower 8. The extension tube 5 includes: an inner tube 15 which is mechanically connected to the cleaner body 3; an outer tube 16 which comes close to the cleaner body 3 as the inner tube 15 is housed inside, and on the other hand, gets away from the cleaner body 3 as the inner tube 15 is pulled out from the inside, so that the whole length of the extension tube 5 is elongated or contracted; and a fixation part 17 which is set on the side of the outer tube 16 and temporarily fixes the elongation or contraction of the outer tube 16 with respect to the inner tube 15.SELECTED DRAWING: Figure 1

Description

  Embodiments according to the present invention relate to a stick-type vacuum cleaner.

  The stick-type vacuum cleaner has a concentrated weight on the vacuum cleaner main body side, that is, the hand side, compared to the tube end side, that is, the suction port side, and does not have a dust collecting hose like a canister type. In addition, the handling property is good. Due to good handling characteristics, the stick type vacuum cleaner facilitates cleaning not only the floor surface but also various places such as the wall surface and the ceiling surface.

JP 2011-189132 A

  However, in the conventional stick-type vacuum cleaner, the extension pipe connecting the vacuum cleaner body and the suction port body does not expand and contract, and it may be difficult to handle in a narrow place or a place close to the hand.

  By the way, a canister type vacuum cleaner provided with an extendable extension tube is known. The extension tube of the canister type vacuum cleaner generally includes an outer tube disposed on the proximal side with a handle and an inner tube disposed far from the handle. The extension pipe of the canister type vacuum cleaner expands and contracts as the inner pipe far from the hand is stored or pulled out with respect to the outer pipe near the hand. In the case of a conventional extension tube having such a telescopic structure, the user of the vacuum cleaner grasps the tip of the outer tube, that is, the end of the outer tube far from the handle, and the inner tube farther from the handle. However, it is necessary to expand and contract the extension tube.

  And when applying the extension pipe which can be extended and contracted of a canister type vacuum cleaner to a stick type vacuum cleaner, the vacuum cleaner main body which has a handle will be connected to the rear end of an outer pipe. In this case, if the user of the vacuum cleaner extends or contracts the extension pipe while holding the tip of the outer pipe, that is, the end of the outer pipe far from the handle and the inner pipe farther from the handle, The main body of the vacuum cleaner connected to the rear end of the tube and having an appropriate weight creates a large couple of forces with respect to the gripping position, which may cause the vacuum cleaner to fall or cause injury to the user's wrist. There is a fear. Moreover, in order to avoid the fall of the electric vacuum cleaner and the injury of the wrist, the main body of the vacuum cleaner is purposely put on the floor or the like to be stabilized, and the trouble of having to extend and contract the extension pipe is generated.

  Therefore, an object of the present invention is to provide a stick-type vacuum cleaner that includes an extension tube that can be easily expanded and contracted with a handle, and that can handle various usage scenes.

  In order to solve the above-mentioned problems, a stick type vacuum cleaner according to an embodiment of the present invention includes a vacuum cleaner main body having a handle and an electric blower that is accommodated in the vacuum cleaner main body and generates suction negative pressure. A telescopic extension pipe fluidly connected to the suction side of the electric blower, the extension pipe mechanically coupled to the cleaner body, and the inner pipe inside. The outer tube is provided on the outer tube side so as to approach the cleaner main body by being housed and to extend and contract the full length of the extension tube away from the cleaner main body by being pulled out from the inner tube. A fixing portion that temporarily fixes expansion and contraction of the outer tube with respect to the inner tube.

The perspective view which shows the stick type vacuum cleaner which concerns on embodiment of this invention. A side view showing a stick type vacuum cleaner concerning an embodiment of the present invention. A side view showing a stick type vacuum cleaner concerning an embodiment of the present invention. The fragmentary sectional view showing the stick type vacuum cleaner concerning the embodiment of the present invention.

  An embodiment of a stick type vacuum cleaner according to the present invention will be described with reference to FIGS.

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

  FIG. 2 is a side view showing the stick type vacuum cleaner according to the embodiment of the present invention.

  As shown in FIGS. 1 and 2, a stick-type vacuum cleaner 1 according to the present embodiment includes a vacuum cleaner main body 3 having a handle 2 that can be operated by hand, and an extendable extension tube connected to the vacuum cleaner main body 3. 5 and a suction port body 6 connected to the extension pipe 5.

  The vacuum cleaner main body 3 includes a main body case 7 having a handle 2, an electric blower 8 that is accommodated in the main body case 7 and generates suction negative pressure, a dust separating and collecting unit 9 that is detachably provided in the main body case 7, A main body control unit 10 that mainly controls the electric blower 8 and a secondary battery 11 that supplies electric power to the electric blower 8 and the main body control unit 10 are provided.

  The cleaner body 3 drives the electric blower 8 with the electric power stored in the secondary battery 11, and causes the negative pressure generated by the drive of the electric blower 8 to act on the extension pipe 5. The stick type vacuum cleaner 1 sucks air containing dust from the floor (hereinafter referred to as “dusty air”) through the suction port 6 and the extension pipe 5 and separates dust from the dusty air. Dust is collected and accumulated, and the separated air is exhausted.

  The body case 7 includes a cylindrical front half portion that is disposed on the extension line of the extension tube 5 in a side view, and a rear half portion that is bent from the front half portion and gradually moves away from the extension line of the extension tube 5. On the upper surface of the front half of the main body case 7, a dust separating and collecting part 9 is provided. The rear half of the main body case 7 extends rearward in a use state (FIG. 2) in which the suction port body 6 is disposed on the floor.

  A main body connection port 12 is provided in the front portion of the main body case 7. The main body connection port 12 is a joint to which the extension pipe 5 can be attached and detached. The main body connection port 12 is a fluid inlet of the cleaner body 3, and fluidly connects the extension pipe 5 and the dust separating and collecting part 9.

  The handle 2 is provided integrally with the main body case 7. The handle 2 is a part that the user grips with the hand in order to clean the floor surface with the stick-type vacuum cleaner 1. The handle 2 is arched from the vicinity of the rear end portion of the dust separating and collecting portion 9 to the rear end portion of the main body case 7. Further, the handle 2 is disposed so as to intersect with the extension line L of the center line of the extension pipe 5 in a side view.

  In the vicinity of the handle 2, an input unit 13 is provided that is arranged in a range in which a user who holds the handle 2 can move his / her fingers.

  The input unit 13 includes an operation start switch 13 a that receives an operation start operation of the electric blower 8 and an operation stop switch 13 b that receives an operation stop operation of the electric blower 8. The operation start switch 13 a and the operation stop switch 13 b are electrically connected to the main body control unit 10. The user of the stick type vacuum cleaner 1 can alternatively select the operation mode of the electric blower 8 by operating the input unit 13. The operation start switch 13 a also functions as an operation mode changeover switch during operation of the electric blower 8. In this case, every time an operation signal is received from the operation start switch 13a, the main body control unit 10 switches the operation mode in the order of strong → medium → weak → strong → medium → weak →. The input unit 13 may include a strong operation switch (not shown), a medium operation switch (not shown), and a weak operation switch (not shown) instead of the operation start switch 13a.

  The dust separating and collecting unit 9 separates dust from the dust-containing air flowing into the cleaner body 3, collects and accumulates it, and sends clean air from which dust has been removed to the electric blower 8. The dust separation and collection unit 9 may be a centrifugal separation method or a filtration separation method.

  The electric blower 8 sucks air from the dust separation and collection unit 9 to generate negative pressure (suction negative pressure).

  The main body control unit 10 includes a microprocessor (not shown) and a storage device (not shown) that stores various calculation programs, parameters, and the like executed by the microprocessor. The storage device stores a plurality of preset operation modes. The plurality of operation modes set in advance are related to the magnitude of the operation output of the electric blower 8 and correspond to the user's operation accepted by the input unit 13. In each operation mode, different input values (input values of the electric blower 8) are set in advance. The main body control unit 10 selectively selects an arbitrary operation mode corresponding to the operation content from a plurality of preset operation modes in accordance with a user operation received by the input unit 13 from the storage unit. The electric blower 8 is controlled according to the read operation mode.

  The extension pipe 5 and the suction port body 6 suck the dust on the floor together with the air by the negative pressure acting from the electric blower 8 and guide it to the cleaner body 3.

  The extension pipe 5 is fluidly connected to the suction side of the electric blower 8 via the main body connection port 12 of the main body case 7 and the dust separating and collecting part 9. The extension pipe 5 has a length that substantially reaches the floor surface while the user holds the handle 2 of the cleaner body 3.

  The extension pipe 5 has a telescopic structure in which a plurality of cylindrical bodies are overlapped. That is, the extension pipe 5 is an elongated substantially cylindrical pipe that can be expanded and contracted. At one end of the extension pipe 5, a joint structure that can be attached to and detached from the main body connection port 12 of the cleaner body 3 is provided. The other end of the extension pipe 5 is provided with a joint structure that allows the suction port body 6 of the cleaner body 3 to be detachable.

  In addition, the extension pipe 5 has an inner pipe 15 mechanically connected to the cleaner body 3, and the inner pipe 15 is housed inside so that the extension pipe 5 approaches the cleaner body while the inner pipe 15 is pulled out from the inside. The outer tube 16 that expands and contracts the entire length of the extension tube 5 away from the cleaner body 3 and the fixing portion 17 that is provided on the outer tube 16 side and temporarily fixes the expansion and contraction of the outer tube 16 with respect to the inner tube 15. I have. That is, the extension pipe 5 includes the inner pipe 15 on the side closer to the vacuum cleaner main body 3 and the outer pipe 16 on the side farther from the vacuum cleaner main body 3 side.

  The fixing portion 17 is provided at an end portion 16 a of the outer tube 16 on the side close to the cleaner body 3. In addition, the fixing portion 17 has an upper surface side (FIG. 1 and FIG. 2) and a lower surface side of the outer tube 16 within the reach of the finger of the user who holds the end 16 a of the outer tube 16 on the side close to the cleaner body 3. It may be arranged at any location on the side surface side.

  The fixing portion 17 includes a push button 18 exposed from the outer peripheral surface of the outer tube 16, a hook (not shown) integrated with the push button 18, and a coil spring (not shown) that generates a spring force in a direction in which the push button 18 is pushed back. And. There is a fulcrum between the push button 18 and the hook, and when the push button 18 is pushed in the direction of the center line of the outer tube 16, the hook moves in a direction away from the center line of the outer tube 16.

  The hook is hooked in a recess (not shown) provided on the inner tube 15 side to temporarily fix the length of the extension tube 5. When the push button 18 is pushed in the direction of the center line of the outer tube 16 and the hook moves in a direction away from the center line of the outer tube 16, the inner tube 15 and the outer tube 16 are temporarily fixed, and can be expanded and contracted. become. The recess provided on the inner tube 15 side is not only for temporarily fixing the extension tube 5 with the longest length (FIG. 2) but also for temporarily fixing the extension tube 5 with the shortest length. A plurality of pipes 5 may be provided including at least one recess that can be fixed stepwise and temporarily between the longest length and the shortest length.

  The coil spring applies a spring force in the direction in which the push button 18 is pushed back, that is, in the direction in which the hook is caught in the recess of the inner tube 15.

  The suction port body 6 can run or slide on a floor surface such as a wooden floor or a carpet, and has a suction port 21 on the bottom surface facing the floor surface in the running state or the sliding state. The suction port body 6 includes a rotatable rotary cleaning body 22 disposed in the suction port 21 and an electric motor 23 that drives the rotary cleaning body 22. A joint structure that is detachable from the other end of the extension pipe 5 is provided at one end of the suction port body 6. The suction port body 6 is fluidly connected to the suction side of the electric blower 8 through the extension pipe 5. The suction port body 6, the extension pipe 5, and the dust separation / collection part 9 are suction air paths from the electric blower 8 to the suction port 21.

  The suction port body 6 may include a windmill (not shown) that drives the rotary cleaning body 22 instead of the electric motor 23. The windmill rotates by the flow of air sucked into the stick type vacuum cleaner 1 and drives the rotary cleaning body 22.

  The stick type vacuum cleaner 1 starts the electric blower 8 when the operation of the user is detected by the operation start switch 13a. For example, when the stick-type vacuum cleaner 1 receives an operation on the operation start switch 13a while the electric blower 8 is stopped, the electric blower 8 is first operated in the strong operation mode, and the operation on the operation start switch 13a is performed again. If accepted, the electric blower 8 is operated in the medium operation mode, and if the operation on the operation start switch 13a is accepted three times, the electric blower 8 is operated in the weak operation mode, and the same is repeated thereafter. 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 separation and collection unit 9 to make the inside negative pressure.

  The negative pressure in the dust separating and collecting part 9 acts on the suction port 21 through the main body connection port 12, the extension pipe 5, and the suction port body 6 in order. The stick type vacuum cleaner 1 cleans the surface to be cleaned by sucking dust on the surface to be cleaned together with air by the negative pressure acting on the suction port 21. The dust separating and collecting unit 9 separates and accumulates dust from the dust-containing air sucked into the stick type vacuum cleaner 1, 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 and collecting part 9 to the outside of the cleaner body 3.

  FIG. 3 is a side view showing the stick type vacuum cleaner according to the embodiment of the present invention.

  FIG. 3 shows a state in which the extension pipe 5 is reduced to the shortest length.

  As shown in FIG. 3, the inner tube 15 of the stick-type vacuum cleaner 1 according to the present embodiment has a remaining portion 25 having a predetermined length D remaining outside the outer tube 16 even when the extension tube 5 is contracted most. Have.

  The user of the stick type vacuum cleaner 1 holds the handle 2 of the vacuum cleaner main body 3 with one hand and the other end of the outer tube 16 with the other hand, that is, the end near the vacuum cleaner main body 3. The extension tube 5 can be reduced by grasping 16a, releasing the temporary fixation between the outer tube 16 and the inner tube 15 by the fixing portion 17, and bringing both hands closer to each other.

  The user of the stick type vacuum cleaner 1 holds the handle 2 of the vacuum cleaner main body 3 with one hand and the other end of the outer tube 16 with the other hand, that is, the side closer to the vacuum cleaner main body 3. The extension tube 5 can be extended by grasping the end portion 16a, releasing the temporary fixation between the outer tube 16 and the inner tube 15 with the fixing portion 17, and keeping both hands away.

  When the extension tube 5 can be reduced to a state in which the outer tube 16 is substantially in contact with the cleaner body 3 in the expansion / contraction operation of the extension tube 5, particularly in the reduction operation, that is, the extension tube 5 is most shortened. If the inner tube 15 is concealed without being exposed, a part of the finger that holds the end 16a of the outer tube 16, for example, a ring finger from the little finger is placed between the outer tube 16 and the cleaner body 3, or the outer tube. 16 and the joint portion of the inner tube 15 may cause an unexpected injury to the user.

  Therefore, the inner tube 15 of the stick-type vacuum cleaner 1 according to the present embodiment has a remaining portion 25 having a predetermined length D that remains outside the outer tube 16 even when the extension tube 5 is contracted most.

  The remaining portion 25 may be at least 3 centimeters, for example, so as not to sandwich a part of a finger between the outer tube 16 and the cleaner body 3 or between the outer tube 16 and the joint portion of the inner tube 15.

  By the way, the conventional canister type vacuum cleaner is provided with the outer tube | pipe arrange | positioned at the hand side with a handle, and the inner tube | pipe arrange | positioned far from an outer tube | pipe seeing from a handle. The user holds the outer tube close to the handle with one hand, releases the temporary fixation between the outer tube and the inner tube with the fixing part, and holds the appropriate portion of the inner tube far from the handle with the other hand. The extension tube is expanded and contracted.

  On the other hand, the stick type vacuum cleaner 1 according to the present embodiment has a handle 2 in the vacuum cleaner body 3 that is heavier than the extension pipe 5 and the suction port body 6. In this stick type vacuum cleaner 1, a user who is accustomed to using a conventional canister type vacuum cleaner customarily holds the inner tube 15 close to the handle 2 with one hand, and is distant from the handle 2 with the other hand. While holding the tube 16, there is a risk that the fixing portion 17 releases the temporary fixation between the outer tube 16 and the inner tube 15 and causes the extension tube 5 to expand and contract.

  And since the stick type vacuum cleaner 1 has the heavy vacuum cleaner main body 3 on the inner tube 15 side, the inner tube 15 close to the handle 2 is routinely gripped with one hand, and the other hand When the outer tube 16 far from the handle 2 is gripped and the fixing portion 17 releases the temporary fixation between the outer tube 16 and the inner tube 15 and the extension tube 5 is to be expanded and contracted, the inner tube 15 is gripped. There is a possibility that the extension pipe 5 may be rapidly reduced in a state where the hand gripping force does not support the weight of the cleaner body 3 and falls due to its own weight. When the extension pipe 5 is suddenly reduced in a state where the vacuum cleaner body 3 falls due to its own weight, the user can place the space between the outer pipe 16 and the cleaner body 3 or between the outer pipe 16 and the inner pipe 15. There is a risk of fingers being pinched between the joint and injury.

  Therefore, the inner tube 15 of the stick-type vacuum cleaner 1 according to the present embodiment has a remaining portion 25 having a predetermined length D that remains outside the outer tube 16 even when the extension tube 5 is contracted most.

  The remaining portion 25 only needs to be at least 11 centimeters, for example, so that the entire finger is not sandwiched between the outer tube 16 and the cleaner body 3.

  That is, when gripping the handle 2 of the cleaner body 3 with one hand and gripping the end 16a of the outer tube 16 near the cleaner body 3 with the other hand, The remaining portion 25 only needs to be 3 centimeters or more, for example, so that a part of a finger is not sandwiched between the outer tube 16 and the cleaner body 3, and on the other hand, the inner tube 15 is gripped by one hand, When the outer tube 16 is gripped by hand and the extension tube 5 is expanded and contracted, the remaining portion 25 should not be sandwiched between the outer tube 16 and the cleaner body 3, for example, 11 cm or more. Therefore, the safety of the extension pipe 5 can be improved by securing the remaining portion 25 of 11 centimeters or more. The remaining portion 25 does not include the joint portion of the inner tube 15 and has the same outer diameter as that of the portion that protrudes into and out of the outer tube 16.

  FIG. 4 is a partial cross-sectional view showing a stick-type vacuum cleaner according to an embodiment of the present invention.

  As shown in FIG. 4, the inner tube 15 of the stick-type vacuum cleaner 1 according to the present embodiment has one end 15 a disposed in the tube of the outer tube 16.

  The air and dust sucked into the stick type vacuum cleaner 1 flow from the outer tube 16 side having a larger inner diameter to the inner tube 15 side having a smaller inner diameter. When the end 15a of the inner tube 15 has a uniform thickness (the broken line shape in FIG. 4), air and dust flowing from the outer tube 16 side to the inner tube 15 side are the inner diameters of the outer tube 16 and the inner tube 15. There is a risk that noise will be generated due to a step due to the difference, or it may be caught by the step and stay.

  Therefore, the inner tube 15 of the stick-type vacuum cleaner 1 according to the present embodiment has an inner diameter of the end portion 15a disposed in the outer tube 16 expanding toward the opening end, and is smoothly connected to the inner surface of the outer tube 16. doing. The tapered portion 27 of the inner tube 15 smoothly connects the inner diameter difference between the inner tube 15 and the outer tube 16 to prevent noise generation and dust accumulation.

  Since the stick type vacuum cleaner 1 according to the present embodiment configured as described above includes the extendable tube 5 that can be expanded and contracted, the handling property can be improved in various usage scenes even in a narrow place or a place close to the hand. Yes.

  Further, the stick type vacuum cleaner 1 according to the present embodiment includes an inner tube 15 disposed near the handle 2 of the cleaner body 3 and an outer tube 16 disposed farther than the inner tube 15. Thus, the extension tube 5 can be easily expanded and contracted by the operation of grasping the handle 2 of the cleaner body 3 with one hand and grasping the outer tube 16 with the other hand to bring both arms closer.

  Furthermore, since the stick type vacuum cleaner 1 according to the present embodiment includes the fixing portion 17 provided at the end portion 16a of the outer tube 16 on the side close to the cleaner body 3, the cleaner body 3 with one hand. The extension tube 5 can be easily released by temporarily holding the outer tube 16 while the outer tube 16 is gripped by the other hand and the outer tube 16 is gripped by the other hand. Can be extended and contracted smoothly.

  Furthermore, since the stick type vacuum cleaner 1 according to the present embodiment includes the handle 2 disposed so as to intersect the extension line L of the center line of the extension pipe 5, the hand holding the handle 2 is left as it is. Since the extension tube 5 can be expanded and contracted by the action of narrowing the distance between both arms, the stick-type vacuum cleaner 1 can be dropped when the extension tube 5 is expanded and contracted without being affected by the weight concentrated on the cleaner body 3. Easy to avoid.

  Moreover, since the stick type vacuum cleaner 1 according to the present embodiment includes the inner tube 15 having the remaining portion 25 having a predetermined length remaining outside the outer tube 16 even when the extension tube 5 is most contracted, Safety can be improved in the extension and contraction operation of the extension pipe.

  Furthermore, in the stick type vacuum cleaner 1 according to the present embodiment, the inner diameter of the end portion 15a of the inner tube 15 disposed in the outer tube 16 is enlarged toward the opening end, so that the inner surface of the outer tube 16 is smoothly connected. Therefore, it is possible to avoid the generation of noise and the retention of dust due to the inner diameter difference between the inner tube 15 and the outer tube 16.

  Therefore, according to the stick type vacuum cleaner 1 which concerns on this invention, the extension pipe | tube 5 which can be expanded-contracted easily with the handle 2 is provided, and it can respond to various utilization scenes.

  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 Stick type vacuum cleaner 2 Handle 3 Vacuum cleaner main body 5 Extension pipe 6 Suction port body 7 Main body case 8 Electric blower 9 Dust separation dust collection part 10 Main body control part 11 Secondary battery 12 Main body connection port 13 Input part 13a Operation start switch 13b Operation stop switch 15 Inner tube 15a End portion 16 Outer tube 16a End portion 17 Fixing portion 18 Push button 21 Suction port 22 Rotary cleaning body 23 Electric motor 25 Remaining portion 27 Taper portion

Claims (5)

A hand-held vacuum cleaner body with a handle,
An electric blower that is housed in the vacuum cleaner body and generates suction negative pressure;
A telescopic extension pipe fluidly connected to the suction side of the electric blower,
The extension pipe is an inner pipe mechanically connected to the cleaner body, and the inner pipe is housed inside to approach the cleaner body, while the inner pipe is pulled out from the inside. A stick-type electric comprising: an outer tube that expands and contracts the entire length of the extension tube away from the cleaner body; and a fixing portion that is provided on the outer tube side and temporarily fixes expansion and contraction of the outer tube with respect to the inner tube. Vacuum cleaner. The stick-type vacuum cleaner according to claim 1, wherein the fixing portion is provided at an end portion of the outer tube that is closer to the cleaner body. The stick-type vacuum cleaner according to claim 1 or 2, wherein the handle is arranged so as to intersect with an extension line of a center line of the extension pipe. 4. The stick-type vacuum cleaner according to claim 1, wherein the inner tube has a remaining portion having a predetermined length that remains outside the outer tube even when the extension tube is contracted most. 5. 5. The inner tube according to claim 1, wherein an inner diameter of an end portion disposed in the outer tube is enlarged toward an opening end and is smoothly connected to an inner surface of the outer tube. Stick type vacuum cleaner.

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