JP2009261501A - Stick vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To satisfy the conflicting functions of efficient operability in cleaning and improvement in suction force for a stick vacuum cleaner to be used as a shoulder hanging cleaner, in configuring the cleaner to be stably erected upright by itself when stored to reduce the storage space. <P>SOLUTION: When the stick vacuum cleaner is stored, an extension pipe is detached and the vacuum cleaner is stably erected by itself on the bottom of a cleaner body. The operability is improved by collectively disposing heavyweight parts such as a cord reel and an electric blower in the vicinity of a handle at the upper end of the cleaner body. The number and the weight of parts is reduced by reinforcing the compression strength of a casing with a circular reinforcing cylinder and by using the reinforcing cylinder also as an outer barrel of a cyclone dust collection part, and as a result, the suction force can be increased by the increase of output of a motor. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a stick-type vacuum cleaner that is a cyclone type among general household vacuum cleaners, and that is particularly suitable for use as a shoulder type.

The conventional stick type vacuum cleaner is used to suck the dust together with the surrounding air while squeezing the handle with one hand to separate and collect the dust from the air with a cyclone or a filter. Also, when not in use, it is required to store it in an upright manner. For example, in the case of a cyclone type, in Patent Document 1, while shortening the intake path as much as possible to prevent deterioration in performance. Some ideas have been proposed to make the center of gravity as low as possible.
JP 2003-204907 A

Further, as an example of a filter type, Patent Document 2 proposes a device that can be used as a stick type or a handy type, and that improves operability during cleaning work while ensuring stability in a non-use state. ing.
Japanese Patent No. 2784970

  Each device incorporates a device to stabilize the storage state when not in use. In other words, the former will be described. In FIG. 5, when the handle 51 is used, the dust sucked together with the surrounding air from the nozzle 54 by the suction force of the electric blower 53 built in the main body 52 of the vacuum cleaner is collected. Separating and collecting at 55. On the other hand, the vacuum cleaner main body 52 in which heavy parts such as the electric blower 53 and the cord reel 56 are housed is disposed below in order to stably store the paper in a stable manner in the state of FIG. 5 when not in use. In particular, the cord reel 56, which is less involved in the intake path, is also arranged below the nozzle 54 at the tip, and the center of gravity is made as low as possible to increase the stability.

  As for the latter, referring to FIG. 6, when using as a stick-type vacuum cleaner with the handle 61, an extension pipe or nozzle is attached to the lower end of the connecting portion 62. The state of is shown. The heavy parts of the electric blower 63 and the cord reel 64 are gathered in the lower part of the cleaner body 65, and a relatively lightweight filter part 66 is formed in the upper part of the cleaner body 65 which is the terminal part of the suction hose 67 to lower the center of gravity. The bottom surface 68 is flat and widely devised in consideration of stability.

  In addition to being required to be stable and independent when not in use, stick-type vacuum cleaners that hold the handle with one hand are required to reduce the overall weight as much as possible. Therefore, it is natural to devise ways to reduce the weight of each part and reduce the number of parts, but by placing heavy parts as close to the handle as the point of action and bringing the center of gravity as close to the hand as possible, operability during cleaning work The idea which improves is made.

  In the case of the cyclone type as in the conventional example of FIG. 5, the vacuum cleaner body in which the cyclone dust collecting part and the electric blower are arranged vertically is arranged near the nozzle to shorten the intake path including the bellows hose. In addition to preventing pressure loss from decreasing, it has the disadvantage of lowering the center of gravity of the entire stick-type vacuum cleaner and improving stability. Yes, it is supplemented by adding parts such as wheels to the nozzle, which is a widely used technique.

  As explained above, with the conventional stick type vacuum cleaner, when aiming for stable independence during storage, instead of shortening the intake path including the bellows hose and maintaining strong suction, the gap between the handle and the heavy part However, there is a drawback that the operability at the time of cleaning work is lowered due to the opening, a disadvantage that the number of parts is increased by an auxiliary means such as a wheel added to supplement the disadvantage, and a cost is increased.

  On the other hand, as a price to improve the operability during cleaning work by placing heavy parts in the vicinity of the handle and avoiding an increase in the number of parts and cost, the suction path including the bellows hose is lengthened, so the suction force The disadvantage of incurring a decrease in the pressure is inevitable, and it is necessary to configure the intake path as short as possible, and the extension allowance is reduced for the convenience of shortening the bellows hose as much as possible, and it is difficult to reach high places. there were.

In addition, when used in a shoulder style, for example, even if a belt is added to the airframe shown in FIG. 6, the body cross-sectional shape is almost circular, so the body side of the cleaning operator is attached to the waist. Unlike, for example, Iitate, which is based on this assumption, convex curved surfaces face each other, making them unfamiliar and poorly sitting. Incidentally, as seen in Patent Document 3, there is also a device for an elliptical vacuum cleaner composed of a gentle curved surface, but there is no difference in that it is a convex curved surface versus a convex curved surface, albeit to a different extent. Compared to a circular structure, there is a drawback that a decrease in compressive strength in the minor axis direction is unavoidable.
Design registration No. 1202935

  The present invention has been made in view of the above-described problems of the prior art. When not in use, the suction port and the extension pipe are removed from the connection locking portion to ensure stable independence on the bottom surface of the cleaner body. Objective. The purpose is to secure the operability at the time of cleaning work by placing the heavy parts of the cord reel and electric blower close to the handle that is also used for cleaning and carrying, and making the center of gravity as close as possible to the handle. To do. The decrease in suction force due to the length of the intake path including the bellows hose is compensated by increasing the output of the motor, and the increase in weight due to the enlargement of the motor to increase the output is The purpose is to compensate by reducing the total amount of components by reducing or sharing. The inconvenience of the convex curved surface of the outer shape is dealt with by providing a flat part on the two opposite surfaces, and the compression strength of the housing is reduced by providing a flat part compared to the convex curved surface. An object of the present invention is to reinforce a weakened portion by a reinforcing cylinder having a circular section with high strength from the inside, and also to use the reinforcing cylinder as an outer cylinder of a cyclone dust collecting portion that does not require a dust bag. The purpose is to ensure good cleaning operability and stability by positioning the lightweight cyclone dust collecting part at the lowest part of the vacuum cleaner body farthest from the handle. Furthermore, the bottom of the main body can be opened and closed, and the bottom cover of the cyclone dust collecting part can also be used to reduce the weight and cost by reducing the number of dust collecting mechanism parts, and realize simple and sanitary disposal of waste. Also aimed. Another object of the present invention is to increase the length of the bellows hose that constitutes a part of the intake path, thereby increasing the stretch length and enabling cleaning at higher places.

  According to the first means of the present invention, two opposing surfaces of the casing forming the outer shape of the vacuum cleaner main body are preferably formed of a transparent resin material in an integral or separate plane and used as a shoulder type. It is characterized by improving the sitting on the side of the user.

  According to a second means of the present invention, a compressive strength of the vacuum cleaner main body is fixed by firmly or firmly attaching a cylindrical body made of a resin having a good lubricity, preferably a transparent resin, to the lower inner portion of the casing. At the same time, the reinforcing cylinder is also used as an outer cylinder of a cyclone dust collecting portion for dust removal.

  The third means of the present invention is characterized in that the flat bottom surface of the vacuum cleaner body is configured to be openable and closable by a hinge portion, and the bottom surface is also used as a bottom lid of the cyclone dust collecting portion, thereby reducing the number of parts. To do.

  According to a fourth means of the present invention, there is provided a stopper means having a locking claw for releasing the locking by one operation on the outer side facing the hinge part on the bottom surface of the vacuum cleaner body, and touching the dust with one touch. It is characterized in that it can be disposed of without waste.

  The fifth means of the present invention is to arrange the cord reel, the electric blower, and the cyclone dust collecting unit in the vertical order from the vicinity of the handle at the top of the vacuum cleaner main body, thereby bringing the center of gravity of the vacuum cleaner main body closer to the handle. It is characterized by improving operability during cleaning work.

  The sixth means of the present invention is to increase the suction force by increasing the output of the motor by reducing the weight and cost, which is brought about by the drastic reduction of the components due to the combined use of the cyclone dust collecting part, and lengthening the bellows hose. Therefore, it is characterized by avoiding the disadvantage that the suction force decreases.

  The seventh means of the present invention is to connect the bellows hose to the inlet of the cyclone dust collecting portion provided on the opposite side of the main body along the U-shaped groove on the upper surface of the handle from the connection locking portion provided on the lower side of the main body. By extending the length, the stretch margin is increased by an amount corresponding to the entire length of the bellows hose, and the suction port can easily reach a high place such as a ceiling.

  Therefore, according to the present invention, it can be stably and independently stored, the operability of the cleaning work is good, the suction force does not decrease even if the extension tube is lengthened, it can easily reach the high part, and the transparent part Therefore, it is possible to provide a stick type vacuum cleaner suitable for use as a shoulder type, in which the amount of waste can be easily confirmed and the waste disposal operation is hygienic and simple.

  Hereinafter, an embodiment of a stick type vacuum cleaner according to the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view showing the external appearance of the stick-type vacuum cleaner according to the present invention with the extension pipe 2 and the suction port 3 removed, and a resin casing 4 which will be described in detail later. Is generally formed in an inverted conical shape with an enlarged upper part, and two opposite side surfaces are formed integrally or separately so as to form a flat part 5 that is partially or entirely transparent as shown in the figure. . A resin handle 7 whose upper surface side is formed in a U-shaped groove shape, which is suitable for accommodating a telescopic bellows hose 6, is attached to the side surface orthogonal to the plane portion 5 and 90 degrees to perform cleaning. The shape is easy for the user to grip when carrying or carrying. The belt 8 made of a flexible and tough material that can be adjusted in length is used when the vacuum cleaner main body 1 of the stick type vacuum cleaner is used as a shoulder type. The end of the bellows hose 6 is fixed to the inlet 9, and a knob 10 is disposed immediately below the inlet 9. These will be described in more detail later.

  Next, description will be made with reference to FIG. 2 showing a cross section perpendicular to the plane portion 5 along the center line of the cleaner body 1. The resin housing 4 constituting the outer shape of the cleaner body 1 is roughly divided into three space portions. That is, the main body upper rib portion 12 that fixes the spring-type cord reel 11 that winds and stores the power cord, which is a large component, is integrated with the cord reel 11 to increase rigidity, and is thick for weight reduction. An upper partition wall suitable for complementing the strength of the casing 4 formed thin is formed, and an upper space is also formed including components (not shown) around the power source such as a switch.

  On the other hand, the lower rib portion 13 of the main body is formed integrally or separately with a filter presser 14 having a circular grid-like lattice surface at the center portion, and complements the strength of the casing 4 like the upper rib portion 12 of the main body. It constitutes a lower partition wall suitable for A space between the upper partition wall and the lower partition wall constitutes a central space, and is a space for accommodating the electric blower 17 including the motor 15 and the fan 16. The electric blower 17 is fixed by the upper partition wall and the lower partition wall so as to wrap around the vibration-proof rubber 18 for preventing the vibration and noise. The motor 15 and the fan 16 having high rigidity also function as a structure, which contributes to the function of reinforcing the complement of the housing 4 of the upper and lower partition walls.

  The electric blower 17 is encased in an anti-vibration rubber 18 with the heavy motor 15 on the upper side and the fan 16 on the lower side and the intake port of the fan 16 facing downward. The portion facing the filter retainer 14 is the intake port of the fan 16. A portion corresponding to is opened, and the intake air is exhausted from one or a plurality of exhaust ports 19 provided in the upper motor 15 portion to the central space, and further, one or a plurality of exhausts provided in the housing 4. It is structured to be discharged from the mouth 20 to the outside of the cleaner body 1.

  In addition to the filter presser 14, the lower rib portion 13 of the main body has a circular cross section, preferably made of a resin having good lubricity and transparency, and a reinforcing cylinder 21 having a flange portion fixed immediately inside the housing 4. In the lower space where there are almost no internal parts compared to the upper space and the central space located below the partition wall, the housing 4 is reinforced from the inside. Further, a cyclone inner cylinder 22 made of resin is provided on the central axis of the vacuum cleaner main body 1, and the upper end of the cyclone inner cylinder 22 is a slightly wide flange. Concentric circular recesses are formed, and a notch portion on the outer edge of the flange portion is aligned with a notch portion provided corresponding to the inner flange portion of the reinforcing cylinder 21 so as to be detachably rotated. In the concentric circular recess provided in the flange, a fibrous filter 23 that performs a dust removing function is placed, and is mounted so as to be sandwiched between the grid-like lattice surface of the filter retainer 14 and has a dust removing function. A part of it.

  On the other hand, an opening is provided at one location on the side of the reinforcing cylinder 21, and the intake air from the inlet 9 to which the end portion of the bellows hose 6 is fixed is tangentially along the inner surface of the reinforcing cylinder 21. Connected to flow in. Further, by forming the reinforcing cylinder 21 with a resin having good lubricity, the lower space of the housing 4 is constituted by a reinforcing cylinder 21 serving as a cyclone outer cylinder arranged coaxially, and a cyclone inner cylinder 22. The cyclone dust removing unit 24 having good dust collection efficiency can be configured.

  The bottom surface of the vacuum cleaner body 1 will be described. The bottom surface of the vacuum cleaner body 1 is made as flat as possible so as to be stable and independent during storage. The bottom surface is attached to a hinge portion 25 provided at the lower end portion of the housing 4 so as to be openable and closable. The bottom cover 26 of the dust part 24 is also used. That is, it constitutes a stopper means for hooking and locking a locking claw 27 provided on the outer edge of the bottom lid 26 opposite to the hinge portion, and is formed integrally with a resin slider when the bottom lid 26 is opened. When the knob 10 is pushed down, the tip of the slider bends the locking claw 27 so that the hook is released. Moreover, since the lower end part of the reinforcement cylinder 21 is closely_contact | adhered to the bottom cover 26 over the perimeter, the cyclone dust collection part 24 is normally maintained in the airtight state.

  The end is fixed to the inlet 9, and the suction connection portion 28 is fixed to the other tip of the bellows hose 6. In the vicinity of the bottom of the side surface of the vacuum cleaner body 1 opposite to the inlet 9, there is provided a connection locking cylinder 29 that communicates in the form of a pipe up and down. When used as a machine, the detachable suction connection portion 28 is left attached to the connection locking cylinder 29, and the suction connection portion 28 is connected when used on the shoulder as shown in FIG. Remove from the retaining cylinder 29 and hold it in the hand, and extend the bellows hose 6 to clean the dust accumulation. Of course, even in this state, the extension pipe 2 and the suction port 3 can be inserted into the tip of the suction connection portion 28 and used for cleaning of high places.

  The operation of the embodiment of the present invention constructed as described above will be described. FIG. 3 shows the extension tube 2 at the lower end of the connection locking cylinder 29 of the cleaner body 1 of the stick type vacuum cleaner according to the present invention. Is inserted and mounted, and the suction port 3 is inserted and mounted at the tip, and the handle 7 is held and used as a stick type vacuum cleaner. 4, as described above, the belt 8 is hung on the shoulder so that the flat surface portion 5 of the housing comes into contact with the waist portion, and the suction connection portion 28 is removed from the connection locking cylinder 29 and held by hand for cleaning. It shows the state.

  The operation of the vacuum cleaner body 1 is exactly the same in any use state shown in FIG. 3 and FIG. 4. If the operation is described below, when the electric blower 17 is activated with the power turned on, a suction force is generated. When used as a shoulder type, dust is sucked together with the surrounding air from the suction connection portion 28 and when used as a stick type, from the suction port 3.

  The intake air containing dust flows through the bellows hose 6 from the inlet 9 at a high speed in a tangential direction with respect to the wall surface of the reinforcing cylinder 21, and dust is separated by a centrifugal separation action in the cyclone dust collecting portion 24. Dust accumulates on the bottom of the cyclone chamber 24. On the other hand, when the intake air passes through the cyclone inner cylinder and passes through the filter 23 that is suppressed by the grid plate-like lattice surface of the filter retainer 14, the remaining fine dust is filtered and becomes a cleaner state. The air is sucked into the electric blower 17 from the intake port.

  The air that has been cleaned by removing dust by the operation so far passes through the air exhaust port 19 of the vibration isolator 18 surrounding the motor 15 while cooling the motor 15, and together with the excess waste heat inside the cleaner body 1. It is discharged out of the cleaner body 1 from an exhaust port 20 provided at an arbitrary position of the housing 4.

  The cleaned air and excess waste heat are discharged out of the vacuum cleaner body 1, but once sucked dust is accumulated on the bottom of the cyclone dust collecting unit 24, and fine dust is entangled in the filter 23. Will be left behind. However, when the flat portion 5 and the reinforcing cylinder 21 are transparent, the accumulated dust can be visually confirmed. When a large amount of dust is collected, the knob 10 is pushed down to be locked at the tip of the integrally formed slider. Unhook the nail 27. Then, the bottom lid 26 opens with the hinge portion 25 as a fulcrum as shown by a two-dot chain line in FIG. 2, so that the accumulated dust adheres to the inner wall of the resin-made reinforcing cylinder 21 with good lubricity and remains. Because it falls beautifully under its own weight, it can be disposed of easily and cleanly. In addition, fine dust entangled in the filter 23 is periodically removed by removing the filter 23 together with the cyclone inner cylinder 22, and maintenance is performed by cleaning or replacement.

  Since the present invention is configured and operates as described above, according to the present invention, the storage can be stably and independently maintained, the operability of the cleaning work is good, and the extension pipe is lengthened without reducing the suction force. Provides a stick-type vacuum cleaner that can easily reach high places, easily check the amount of dust accumulated from the transparent part, and is easy to dispose of waste. I can do it.

  Although the best mode for carrying out the present invention has been described with reference to the drawings, the protection scope of the present invention is not limited to the above-described embodiment, and includes the invention described in the claims and equivalents thereof. Is.

External perspective view showing an embodiment of the present invention The longitudinal cross-sectional view shown along the centerline of the Example of this invention The perspective view which shows the use condition of the Example of this invention The perspective view which shows the other use condition of the Example of this invention. Longitudinal sectional view showing a conventional example Longitudinal sectional view showing another conventional example

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body 4 Housing | casing 5 Flat part 6 Bellows hose 7 Handle 9 Inflow port 11 Cord reel 17 Electric blower 21 Reinforcement cylinder 22 Cyclone inner cylinder 24 Cyclone dust collection part 25 Hinge part 26 Bottom cover 27 Locking claw 28 Suction connection part 29 Connection locking cylinder

Claims (6)

It incorporates a cord reel that winds a cord that supplies power to the vacuum cleaner body, an electric blower composed of a motor and a fan, and a cyclone dust collecting part that communicates with the intake side of the electric blower. It is configured in a flat shape suitable for installation on the floor, and has an upper surface formed with a U-shaped groove at the upper end of the vacuum cleaner body, which is used for cleaning operation and carrying, On the side surface near the bottom of the vacuum cleaner main body, there is provided a connection locking cylinder whose inner diameter communicates in the form of a pipe up and down, and a bellows hose having a suction connection part at its tip is detachably inserted into the connection locking cylinder. The other end of the bellows hose is connected to the inflow port of the cyclone dust collecting portion on the opposite side surface of the connection locking cylinder along the handle, and an extension pipe and a suction port are formed below the connection locking cylinder. It is used as a stick-type vacuum cleaner when connected And when the suction port is not used, in the vacuum cleaner suitable for use as a shoulder type by hanging the belt on the shoulder and pulling out the suction connection part of the bellows hose from the connection locking cylinder, the two opposite surfaces of the housing of the vacuum cleaner body A stick type vacuum cleaner characterized by comprising a flat part. A reinforcing cylinder having a circular cross section that reinforces the casing from the inside is provided, and an opening is provided in the upper part of the reinforcing cylinder to connect an inlet port to which a bellows hose is connected, and the reinforcing cylinder is also used as an outer cylinder of the cyclone dust removing unit. The stick type vacuum cleaner according to claim 1. The stick type vacuum cleaner according to claim 1 or 2, wherein a dust accumulation state inside can be confirmed through a transparent part from a flat part on the side of the casing and the outside of the reinforcing cylinder. A stopper means comprising a hinge portion at the lower end of the housing, a flat bottom lid rotatably supported on the hinge portion, and the opening and closing of the bottom lid on the opposite side of the bottom lid facing the hinge portion The stick type vacuum cleaner according to claim 1, further comprising a locking claw as a sticker. Close to the handle located at the top of the vacuum cleaner body, heavy parts such as a cord reel and electric blower are arranged at the top, and a cyclone dust removal part is arranged at the bottom, and the vertical axes are arranged with their center axes aligned. The stick type vacuum cleaner according to claim 1. 2. The bellows hose is extended from the connection locking cylinder along the side surface of the vacuum cleaner main body, through a handle U-shaped groove, to an inflow port provided at a lower portion of the opposite side surface. Stick type vacuum cleaner.

Images