JP4635637B2 - Electric vacuum cleaner - Google Patents

Description

  The present invention relates to a suction type household vacuum cleaner including an electric blower.

  Conventionally, as this type of electric vacuum cleaner, for example, there is one that adjusts the size of the main wheel and the center of gravity of the main body of the vacuum cleaner in order to improve usability (see, for example, Patent Document 1).

  FIG. 8 shows a conventional vacuum cleaner described in Patent Document 1. In FIG. As shown in FIG. 8, the cleaner body 1, the main wheel 2 provided in the cleaner body 1, the flexible hose 3 connected to the cleaner body 1, the flexible hose 3 and one end The extension pipe 4 is connected, the floor suction tool 5 connected to the extension pipe 4, and the handle portion 6.

  Also, when moving the cleaner body by pulling the flexible hose for better usability, the direction in which the flexible hose is pulled is detected, and the motor drives the main wheel via the gear. (For example, see Patent Document 2).

FIG. 9 shows a conventional electric vacuum cleaner described in Patent Document 2. In FIG. As shown in FIG. 9, the cleaner body 1, the main wheel 2 provided in the cleaner body 1, the flexible hose 3 connected to the cleaner body 1, the flexible hose 3 and one end The extension pipe 4 connected to the extension pipe 4, the floor suction tool 5 connected to the extension pipe 4, the handle portion 6, the motor 7 for driving the main wheel 2, and the flexible hose 3 are drawn. It comprises a switch 8 that detects the direction in which it is present.
JP-A-5-285072 Japanese Patent Laid-Open No. 5-261333

  However, in the configuration in which the size of the main wheel 2 and the center of gravity of the vacuum cleaner main body 1 are adjusted in the conventional configuration, when the operator pulls the handle portion 6 strongly or reciprocates the handle portion 6 quickly, the cleaner There has been a problem that the main body 1 moves to a position unintended by the operator. In particular, when the vacuum cleaner main body 1 is lightweight or the floor surface is a slippery surface, when the operator pulls the handle 6, the vacuum cleaner main body 1 is not positioned by the operator. Has the problem of moving too far.

  Moreover, in the structure which drives the main wheel 2 with the motor 7 of the said conventional structure, when the switch 8 cuts off, the motor 7 will stop the main wheel 2, and the cleaner body 1 will move to the position which an operator does not intend. However, there is a problem that a space in which the motor 7 is placed is secured inside the cleaner body 1 and the heavy motor 7 must be placed inside the cleaner body 1.

  The present invention solves the above-described conventional problems, and when the handle portion is pulled with a simple configuration or when the handle portion is reciprocated, the cleaner body does not move, and the cleaner body is intended to be positioned. It is an object of the present invention to provide an easy-to-use vacuum cleaner that can be kept stationary.

  In order to solve the above-described conventional problems, the vacuum cleaner of the present invention has a main body stationary device disposed between the handle portion and the main wheel. It is an object of the present invention to provide a structure in which the main body of the vacuum cleaner does not move when the handle portion is pulled or when the handle portion is reciprocated.

  The vacuum cleaner of the present invention is configured so that the vacuum cleaner main body does not move when the handle is pulled or the handle is reciprocated, so that the vacuum cleaner main body can be stopped at the intended position. Can be improved.

1st invention is a vacuum cleaner main body, the front wheel provided in the front part of the said vacuum cleaner main body, the main wheel provided in the right and left of the said vacuum cleaner main body, one end is connected to the said vacuum cleaner main body, and the other end is A flexible hose connected to the extension pipe, a floor suction tool connected to one end of the extension pipe, a handle provided on the flexible hose or the extension pipe, a main body stationary device, and the cleaning A speed detection unit that detects a moving speed of the machine body, and when the detected value of the speed detection unit exceeds a preset value during movement of the cleaner body by the operation of the handle part, the body stationary By configuring the apparatus to operate the apparatus so that the movement of the cleaner main body can be decelerated or stopped, the cleaner main body can be moved to an intended position, and usability can be improved.

  The second invention is not particularly parallel to the main body stationary device of the first invention, provided with a wheel direction changing device, and the main wheels provided on the left and right of the cleaner main body by the wheel direction changing device when viewed from above. By adopting a configuration in which the distance between the front of the main wheel and the rear of the main wheel is made different toward the angle, a conventional wheel can be used as a friction body, and a static force can be obtained with a simple configuration.

  In particular, the third aspect of the invention is the main body stationary device of the first aspect of the invention, provided with a wheel position adjustment mechanism, and with respect to the machine removal main body, the ground contact position in contact with the floor surface of at least one of the front wheels and the left and right main wheels is upward Since the bottom of the vacuum cleaner main body is in contact with the floor surface, the wide surface of the main body bottom portion is in contact with the floor surface and friction is generated, so that a strong static force can be obtained.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the present embodiment.

(Embodiment 1)
FIG. 1 is a side view showing the overall configuration of the electric vacuum cleaner according to the first embodiment of the present invention.

  In FIG. 1, a main body 2 and a front wheel 32 are provided on the cleaner body 1 and a flexible hose 3 is connected thereto. One end of the flexible hose 3 is connected to one end of the extension pipe 4, and the other end of the extension pipe 4 is connected to the floor suction tool 5. The handle 6 is provided on the extension tube 4. A speed detector 33 that can detect the rotational speed of the front wheel 32 is disposed in the vicinity of the front wheel 32. The vacuum cleaner main body 1 is provided with a main body stationary device A9 that can make the main body stationary.

  A main body stationary device A9 provided in the vacuum cleaner main body 1 includes a lower main body suction port 10, a suction port opening / closing valve 11, and an opening / closing valve driving device 12.

  FIG. 2 is a bottom view of the vacuum cleaner body 1 of the electric vacuum cleaner according to the first embodiment of the present invention. In FIG. 2, a main body stationary device B <b> 13 is disposed on the main wheel 2. The main body stationary device B13 includes a main wheel 2 and a wheel direction changing device 14 that changes the direction of the main wheel 2.

  About the vacuum cleaner comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  When the vacuum cleaner is activated, suction force is generated by an electric blower (not shown) inside the vacuum cleaner main body 1, and dust on the floor surface is cleaned from the floor suction tool 5 through the extension pipe 4 and the flexible hose 3. It is sucked into the machine body 1.

  During the cleaning operation, the handle 6 is moved and moved to move the floor suction tool 5. Moreover, the cleaner main body 1 is moved through the extension pipe 4 and the flexible hose 3 by moving the handle portion 6 back and forth. As the cleaner body 1 moves, the main wheel 2 and the front wheel 32 rotate.

  At this time, when the speed of rotation of the front wheel 32 is detected by the speed detector 33, the moving speed of the cleaner body 1 is checked from the detection result, and the moving speed is fast and exceeds a preset speed numerical value range. At least one of the main body stationary device A9 or the main body stationary device B13 is operated.

  When the main body stationary device A9 operates, the on-off valve driving device 12 moves the suction port on-off valve 11 to open the lower main body suction port 10. As a result, air is sucked from the bottom of the cleaner body 1. The vacuum cleaner main body 1 is attracted to the floor surface by the suction force and stops.

  Further, when the main body stationary device B13 operates based on the detection result of the speed detector 33, the wheel direction changing device 14 is driven. As a result, the left and right wheels of the main wheel 2 are directed at angles that are not parallel to each other when viewed from above. When the main wheels 2 are directed in directions that are not parallel, the cleaner body 1 cannot be moved by simultaneously rotating the left and right main wheels 2, and the cleaner body 1 is stationary.

  As a result, when the handle portion 6 is pulled strongly or when the handle portion 6 is reciprocated quickly, the cleaner body 1 stops moving, and when the operator pulls the handle portion 6, the cleaner body 1 is brought into the intended position. Can be stationary.

  In addition, in this Embodiment, although main body stationary apparatus A9 was comprised from the main body lower suction inlet 10, the suction inlet on-off valve 11, and the on-off valve drive device 12, some vacuum cleaner main bodies 1 shown in FIG. As shown in a cutaway side view, it has a hose side suction opening / closing valve 16 that opens and closes a flexible hose side suction opening 15 of the vacuum cleaner body 1, and the main body lower suction opening 10 is opened during a normal cleaning operation. The flexible hose side suction port 15 is opened by the hose side suction port opening / closing valve 16 and when the speed detector 33 is operated, the lower suction port 10 is opened and the flexible hose side suction port 15 is simultaneously opened. It is good also as a structure which closes. Alternatively, the main body lower suction port 10 may be kept open and the flexible hose side suction port 15 may be closed by the hose side suction port opening / closing valve 16 when the speed detector 33 operates.

  In FIG. 2 for explaining the present embodiment, the angle of the main wheel 2 is changed so that the space in front of the cleaner body 1 is narrowed, but the angle may be changed so that the rear is narrowed.

( Reference form 1 )
Figure 4 is a side view showing an overall configuration of an electric vacuum cleaner in the first reference embodiment of the present invention.

  In FIG. 4, the main body 2 is provided in the cleaner body 1. The vacuum cleaner main body 1 and the flexible hose 3 are connected. One end of the flexible hose 3 is connected to one end of the extension pipe 4, and the other end of the extension pipe 4 is connected to the floor suction tool 5. The handle 6 is provided on the extension tube 4.

  Further, a distance detector 17 that detects the distance between the handle 6 and the cleaner body 1 is disposed on the handle 6 and the cleaner body 1. The distance detector 17 includes a transmitter 18 provided on the handle side that transmits radio waves and a receiver 19 provided on the main body side that receives radio signals.

  The main body stationary device is disposed on the cleaner body 1 and the main wheel 2, and the main body stationary device C provided on the cleaner body 1 is composed of a friction body 21 protruding from the bottom surface of the cleaner body 1. The main body stationary device D provided on the main wheel 2 includes a wheel surface friction body 23.

  About the vacuum cleaner comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  When the vacuum cleaner is activated, suction force is generated by an electric blower (not shown) inside the vacuum cleaner main body 1, and dust on the floor surface is cleaned from the floor suction tool 5 through the extension pipe 4 and the flexible hose 3. It is sucked into the machine body 1.

  During the cleaning operation, the handle 6 is moved and moved to move the floor suction tool 5. Moreover, the cleaner main body 1 is moved through the extension pipe 4 and the flexible hose 3 by moving the handle portion 6 back and forth. As the cleaner body 1 moves, the main wheel 2 rotates.

  At this time, a radio wave signal is sent from the transmitter 18 provided on the handle portion 6 to the receiver 19 provided on the main body side, and the distance between the cleaner main body 1 and the handle portion 6 is detected from the time taken to reach the receiver. When the distance is small from the detection result and falls below a preset distance range, at least one of the main body stationary device C or the main body stationary device D is operated.

  When the main body installation main body stationary device C operates, the friction body 21 arranged under the cleaner main body 1 protrudes and presses against the floor surface, and the cleaner main body 1 is stopped by friction with the floor surface.

  Further, in the main body stationary device D, the wheel surface friction body 23 is put out from the main wheel 2 to the main wheel surface based on the detection result of the distance detector 17. Large friction is generated by the wheel surface friction body 23, and the cleaner body 1 is stationary.

  Accordingly, when the handle portion 6 is pulled or when the handle portion 6 is reciprocated, the cleaner body 1 stops moving, and when the operator pulls the handle portion 6, the cleaner body 1 is stopped at the intended position. be able to.

Incidentally, in the present reference, although the friction member 21 and the main wheel 2 has a configuration in which the ground to wake when projecting the friction member 21, friction member 21 is supported cleaner body 1, the main wheel 2 A configuration without grounding may be used.

Incidentally, in the present reference, the surface of the friction member 21 is has a planar may be in other shapes.

Incidentally, in the present reference, the distance detector 17 is received by the receiver 19 provided to the main body sends a radio signal from a transmitter 18 provided on the handle side, the transmitter 18 to the main body is provided, A receiver 19 may be provided on the handle side to transmit and receive radio waves.

Also in the present reference, the distance detector 17 to determine the distance of the cleaner main body 1 and the handle portion 6 from time to the arrival sends radio waves do not may be used waves or light instead of radio waves, The distance between the handle 6 and the cleaner body 1 may be obtained from the result of detecting how the hose twists.

( Reference form 2 )
Figure 5 is a side view showing an overall configuration of an electric vacuum cleaner in a second reference embodiment of the present invention.

  In FIG. 5, the main body 2 is provided in the cleaner body 1. The vacuum cleaner main body 1 and the flexible hose 3 are connected. One end of the flexible hose 3 is connected to one end of the extension pipe 4, and the other end of the extension pipe 4 is connected to the floor suction tool 5. The handle 6 is provided on the extension tube 4.

  In addition, a main body stationary device is disposed in the cleaner main body 1. The main body stationary device E provided in the cleaner body 1 is composed of an exhaust outlet 25, an exhaust outlet opening / closing valve 26, a normal exhaust opening 27 for exhausting air during normal cleaning work, and a normal exhaust opening / closing valve 28. . Further, a stationary device operation switch 29 for operating the main body stationary device E is disposed on the handle portion 6.

  About the vacuum cleaner comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  When the operator operates the stationary device operation switch 29 during the cleaning work, the main body stationary device E operates. When the main body stationary device E is operated, the normal exhaust port opening / closing valve 28 opened during the normal cleaning operation closes the normal exhaust port 27, and at the same time, the exhaust outlet opening / closing valve 26 closed during the normal cleaning operation is discharged into the exhaust outlet 25. open. As a result, the exhaust of the cleaner body 1 is blown out forward of the cleaner body 1, and the reaction that moves forward in front of the cleaner body 1 can be stopped.

Incidentally, in the present reference, the main stationary apparatus E operates, usually the exhaust opening and closing valve 28 is blow simultaneously evacuated closed normal exhaust port 27 opening and closing valve 26 is opened the outlet 25 exhaust, typically outlet The exhaust outlet opening / closing valve 26 may open the exhaust outlet 25 while the on / off valve 28 remains open. In addition, the normal exhaust port on / off valve 28 may close the normal exhaust port 27 while the exhaust outlet on / off valve 26 remains open.

(Embodiment 2 )
FIG. 6 is a sectional view showing an outline of the vacuum cleaner main body 1 of the electric vacuum cleaner according to the second embodiment of the present invention.

  In addition, since structures other than the cleaner main body 1 are the same as those of the first embodiment, the same reference numerals are given, and detailed descriptions thereof are omitted.

  In FIG. 6, the main body stationary device is arranged in the cleaner main body 1. The main body stationary device F30 provided in the vacuum cleaner main body 1 includes a wheel position adjusting mechanism 31 that shifts the position of the front wheel 32 installed on the floor surface.

  About the vacuum cleaner comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  When the main body stationary device F30 operates, the wheel position adjusting mechanism 31 shifts the position of the front wheel 32 upward. Thereby, the wide surface of the bottom of the vacuum cleaner main body 1 comes into contact with the floor surface, and the vacuum cleaner main body 1 stops due to friction between the bottom of the vacuum cleaner main body 1 and the floor surface.

  In the present embodiment, the wheel position adjusting mechanism 31 is disposed only on the front wheel 32, but may be disposed on the main wheel 2. Moreover, you may arrange | position to both the front wheel 32 and the main wheel 2. FIG.

  Moreover, in this Embodiment, although the bottom part of the cleaner body 1 is a conventional structure, you may arrange | position the structure which makes a frictional force large in the bottom part which touches the floor surface of the cleaner body 1. FIG.

  Furthermore, in the present embodiment, the main body stationary device F30 has a configuration in which the position of the main wheel 2 is shifted upward by the wheel position adjusting mechanism 31 and the bottom surface of the cleaner main body 1 is in contact with the floor surface. As shown in the front view of the main body 1, the direction of the main wheel may be tilted when viewed from the front, and the bottom surface of the cleaner main body 1 may be in contact with the floor surface.

  As described above, according to the electric vacuum cleaner of the present invention, the vacuum cleaner main body can be configured not to move when the handle is pulled or the handle is reciprocated, and the vacuum cleaner main body is stopped at the intended position. Therefore, it is useful for a vacuum cleaner or the like used in general households, and can be used for a device that repeatedly moves and stops.

Side view of the electric vacuum cleaner in Embodiment 1 of the present invention Bottom view of the vacuum cleaner body Side view showing a part of the other structure of the vacuum cleaner main body broken away The side view of the vacuum cleaner in the reference form 1 of this invention The side view of the vacuum cleaner in the reference form 2 of this invention Sectional drawing of the vacuum cleaner main body in Embodiment 2 of this invention Front view of the vacuum cleaner Overall configuration diagram showing the configuration of a conventional vacuum cleaner Whole block diagram showing a part of the configuration of a conventional vacuum cleaner

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body 2 Main wheel 3 Flexible hose 4 Extension pipe 5 Floor suction tool 6 Handle part 9 Main body stationary apparatus A
DESCRIPTION OF SYMBOLS 10 Main body suction port 11 Suction port opening / closing valve 17 Distance detector 21 Friction body 27 Normal exhaust port 28 Normal exhaust port switching valve 29 Stationary device operation switch 31 Wheel position adjustment mechanism 32 Front wheel 33 Speed detector

Claims (3)

A vacuum cleaner body, front wheels provided at the front of the vacuum cleaner body, main wheels provided on the left and right of the vacuum cleaner body, one end connected to the vacuum cleaner body, and the other end connected to an extension pipe A flexible hose, a floor suction tool connected to one end of the extension pipe, a handle provided on the flexible hose or the extension pipe, a main body stationary device, and a moving speed of the cleaner main body. A speed detector for detecting, and when the main body of the cleaner is moved by the operation of the handle, when the detected value of the speed detector exceeds a preset value, the main body stationary device is operated to A vacuum cleaner that can decelerate or stop the movement of the vacuum cleaner body. The main body stationary device includes a wheel direction changing device, and the main wheels provided on the left and right of the vacuum cleaner main body by the wheel direction changing device are directed at angles that are not parallel to each other when viewed from above. The electric vacuum cleaner according to claim 1, wherein the rear interval is different. The main body stationary device is equipped with a wheel position adjusting mechanism, and with respect to the machine remover body, the ground contact position in contact with the floor surface of at least one of the front wheels or the left and right main wheels is shifted upward, and the bottom of the cleaner body is in contact with the floor surface. The electric vacuum cleaner according to claim 1.

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