JP2013223562A - Vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vacuum cleaner for informing a user by a touch feeling, that the rotation rate of a rotary brush is not optimum.SOLUTION: A vacuum cleaner includes: an electric blower 2 for generating suction air; a suction tool 3 for sucking dust by the suction force of the electric blower 2; a rotary brush 17 rotatably provided on the suction tool 3; a motor 16 for rotationally driving the rotary brush 17; a rotation rate detection means 18 for detecting the rotation rate of the rotary brush 17; a hand operation part 5 which a user grips during cleaning operation; and a vibration part 7 provided in the vicinity of the hand operation part 5 for vibrating the hand operation part 5. The vibration part 7 is vibrated by a signal from the rotation rate detection means 18 and thereby, capable of informing the user, not visually but tactually, that the condition that the rotation rate of the rotary brush 17 disposed on the suction tool 3 is varied and turned to be not optimum, and providing the convenient vacuum cleaner.

Description

  The present invention relates to a vacuum cleaner.

  Conventionally, the rotational speed of the suction tool of the vacuum cleaner is detected to determine whether the ideal rotational speed of the rotating brush is obtained on the surface to be cleaned, and the rotational speed of the rotating brush is arranged in the suction tool. There has been proposed a vacuum cleaner that displays the information on the display means (see, for example, Patent Document 1).

  In recent years, a function of controlling the rotational speed of the rotary brush of the suction tool of the vacuum cleaner and optimally controlling the surface to be cleaned is also installed.

JP-A 61-240933

  However, in the configuration of the conventional vacuum cleaner, since it is a visual display method, the user rarely realizes that the rotation speed of the rotating brush changes and is optimal, and the suction tool reciprocates during the cleaning operation. Since it operates, the visibility is poor, and notification to the user is not effective.

  In addition, even when hair, lint, etc. get entangled with the rotating brush and the optimal rotating brush speed cannot be maintained and the cleaning operation is inefficient, the cleaning operation is continued without the user's knowledge. Furthermore, if cleaning is performed for a long period of time in that state, an excessive load is applied to the electric motor that drives the rotating brush, and the electric motor may break down.

  In addition, if the user performs cleaning work for a long time without noticing that the rotational speed of the rotating brush is excessively high when cleaning the floor surface with a low load such as flooring, the user will make small scratches on the flooring. There were also challenges.

  The present invention solves the above-mentioned conventional problems, and is a user-friendly user who can accurately notify the state where the rotational speed of the rotating brush arranged in the suction tool fluctuates and is not optimal by tactile sense instead of visual sense. The aim is to provide a good vacuum cleaner.

  In order to solve the above-described conventional problems, an electric vacuum cleaner of the present invention is provided with an electric blower that generates suction air, a suction tool that sucks dust by the suction force of the electric blower, and a rotary tool provided on the suction tool. A rotating brush, an electric motor for rotating the rotating brush, a rotation speed detecting means for detecting the rotation speed of the rotating brush, a hand operating part gripped by a user during a cleaning operation, and a vicinity of the hand operating part. Provided with a vibration part that vibrates the hand operation part, and vibrates the vibration part by a signal from the rotation speed detection means, and the rotation speed of the rotary brush arranged in the suction tool varies and is optimal. The state of disappearance can be accurately notified to the user not by sight but by tactile sensation, and a user-friendly vacuum cleaner can be provided.

The vacuum cleaner of the present invention is capable of accurately notifying the user not by sight but by tactile sense of the state in which the rotation speed of the rotary brush arranged in the suction tool fluctuates and is not optimal. It is.

The perspective external view of the electric vacuum cleaner in Embodiment 1 of this invention Control block diagram of the vacuum cleaner Chart showing an example of the relationship between the rotational speed detected by the rotational speed detection means of the vacuum cleaner and the vibration pattern of the vibration part The figure which shows the vibration example of each vibration pattern of the same vacuum cleaner Control block diagram of the electric vacuum cleaner in Embodiment 2 of the present invention Chart showing an example of the relationship between the rotational speed detected by the rotational speed detection means of the electric vacuum cleaner, the user's operation and the vibration pattern of the vibration part

  A first invention is an electric blower that generates suction air, a suction tool that sucks dust by the suction force of the electric blower, a rotary brush that is rotatably provided on the suction tool, and a rotary drive for the rotary brush. An electric motor, a rotational speed detection means for detecting the rotational speed of the rotary brush, a hand operating part that a user grips during a cleaning operation, and a vibration part that is provided near the hand operating part and that vibrates the hand operating part The vibration part is vibrated by a signal from the rotation speed detection means, and the rotation speed of the rotary brush arranged in the suction tool fluctuates and is not optimal, and the user feels not by sight but by touch. Thus, it is possible to provide an accurate notification and to provide a vacuum cleaner that is easy to use.

  In the second invention, in particular, when the rotational speed of the rotary brush detected by the rotational speed detection means of the first invention is less than or equal to a predetermined value 1, the vibration part is vibrated with the normal vibration pattern 1. When scraps are entangled with the rotating brush and the rotation speed of the rotating brush cannot be maintained, it becomes inefficient cleaning work, or carpets with long bristle feet are cleaned and placed in the suction tool. In addition, it is possible to accurately notify the user that an excessive load is applied to the electric motor not by sight but by tactile sense, and it is possible to provide an easy-to-use electric vacuum cleaner.

  In particular, the third invention provides a predetermined value 2 smaller than the predetermined value 1 of the second invention, and determines that the rotational speed of the rotating brush is abnormal when the rotational speed of the rotating brush is equal to or less than the predetermined value 2, and thus a vibration pattern different from normal. 2 is used to vibrate the vibration part. A large amount of hair, lint, etc. is entangled with the rotating brush, causing the rotational speed of the rotating brush to drop extremely. If it is used continuously, it will cause a failure of the motor.It is an abnormal state that requires the maintenance of the rotating brush, and that the rotating brush is not rotating due to a failure of the motor itself. Therefore, it is possible to provide a user with a tactile sense and to provide a user-friendly electric vacuum cleaner.

  In the fourth invention, in particular, the predetermined value 3 larger than the predetermined value 1 of the second or third invention is provided, and when the rotational speed of the rotating brush is equal to or greater than the predetermined value 3, the rotational speed of the rotating brush is unnecessarily increased. It is judged that there is a possibility of damaging the floor surface such as flooring, and the vibration part is vibrated with a vibration pattern 3 different from normal or abnormal state notification. It is possible to accurately notify the user that the rotational speed of the rotating brush is too high in the cleaning of the floor, not by sight but by tactile sense. Therefore, it is possible to provide a vacuum cleaner that is easy to use.

In particular, the fifth invention is provided with a rotation speed variable means that allows the user of any one of the first to fourth inventions to freely change the rotation speed of the rotary brush. When cleaning a small floor or the like, if the user senses that the rotation speed of the rotating brush is too high, the user himself can reduce the rotation speed of the rotating brush. Become. Therefore, it is possible to provide an easy-to-use electric vacuum cleaner that can avoid such a case that even if the cleaning work is performed for a long time, the flooring is slightly damaged.

  Also, in cleaning a carpet with a slightly longer hair, even when the rotational speed of the rotating brush is slightly reduced, the rotational speed of the rotating brush can be increased by the user's operation to maintain the rotational speed suitable for cleaning, An easy-to-use vacuum cleaner can be provided.

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

(Embodiment 1)
FIG. 1 is a perspective external view of the electric vacuum cleaner according to Embodiment 1 of the present invention, FIG. 2 is a control block diagram of the electric vacuum cleaner, and FIG. 3 is detected by a rotation speed detecting means of the electric vacuum cleaner. FIG. 4 is a chart showing an example of the relationship between the rotational speed and the vibration pattern of the vibration part, and FIG.

  In FIG. 1, the vacuum cleaner main body 1 of the vacuum cleaner in the present embodiment incorporates an electric blower 2 that generates suction air at the rear. In addition, a power cord 10 is provided at the rear for supplying power to a circuit board (not shown) built in the cleaner body 1 by connecting to an indoor outlet (commercial power supply 12 in FIG. 2). ing.

  Moreover, it has the suction tool 3 attached to the extension pipe 4 and sucking dust, and the extension pipe 4 has the input size (for example, “strong”, “medium”, “weak”, stop, etc.) of various electric blowers 2 ) Is connected to the vacuum cleaner main body 1 via a hand operating section 5 and a hose 6 with a hose connecting section 8 that can be selected.

  The suction tool 3 includes a rotary brush 17 for scraping dust, an electric motor 16 for driving the rotary brush 17, and a non-contact rotational speed detection means configured to detect the rotational speed of the rotary brush 17. 18 is arranged.

  The hand grip portion 9 is for a user to hold and operate when moving the suction tool 3 or the extension tube 4, and controls driving of the vibration portion 7 based on the detected rotational speed from the rotational speed detection means 18. The vibration control means 15 and the hand operation part 5 are incorporated.

  The vibration unit 7 is provided in or near the hand grip 9 and is for vibrating the hand grip 9. The vibration generated by the vibration unit 7 is transmitted to the hand operation unit 5 or the hand grip unit 9 and is recognized as a tactile sensation by the user's hand holding the hand grip unit 9. Although not particularly illustrated, the vibration unit 7 includes a device that generates vibration, such as a vibration motor, a piezoelectric device, and an electromagnetic device, and a drive circuit that drives the device.

  Next, the control method of the vacuum cleaner in this Embodiment is demonstrated using FIG.

  The electric blower drive means 13 incorporated in the cleaner body 1 is composed of a bidirectional thyristor or the like for driving the electric blower 2, and is for controlling the phase of the electric blower 2 and changing the suction force. Further, in the cleaner body 1, electric motor driving means 14 constituted by a bidirectional thyristor for driving the electric motor 16 in the suction tool 3 is also incorporated.

The control means 11 composed of a microcomputer or the like takes in the switch operation information of the hand operating section 5 operated by the user and, based on the information, outputs an ignition pulse for phase control to the electric blower driving means 13. In addition to performing the output control, the motor driving means 14 is also controlled to output an ignition pulse for phase control of the electric motor 16 incorporated in the suction tool 3.

  At this time, the control means 11 transmits to the vibration control means 15 that the electric motor 16 has been driven.

  When the rotating brush 17 driven by the electric motor 16 rotates, the rotation number detecting means 18 detects the rotation number of the rotating brush 17 and sends an output signal to the vibration control means 15. The vibration control means 15 receives the signal from the rotation speed detection means 18 and compares it with a predetermined rotation speed of the rotary brush 17 determined in advance, and vibrates the vibration section 7.

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

  For example, when the user operates the hand operation unit 5 and selects a “strong” switch (not shown), the control unit 11 controls the electric blower driving unit 13 and the electric motor drive based on information from the hand operation unit 5. A predetermined signal is sent to the means 14 to drive the electric blower 2 and the electric motor 16. When the operation of the electric vacuum cleaner starts, the user performs a cleaning operation by grasping the hand grip 9 and operating the suction tool 3 attached to the extension pipe 4 and in contact with the surface to be cleaned.

  As shown in FIG. 3, the rotational speed of the rotary brush 17 driven by the electric motor 16 is detected by the rotational speed detection means 18, and the rotational speed is said to be appropriate for cleaning. The means 15 does not vibrate the vibration part 7.

  When the user performs a cleaning operation for a long period of time, lint and the like are gradually entangled with the rotating brush 17, and the appropriate rotating brush 17 cannot be maintained at 3000 rpm, which is an inefficient cleaning operation. When the predetermined rotational speed (predetermined value 1), for example, is reduced to 2500 rpm, the vibration control means 15 notifies the user of the vibration unit 7 with a vibration pattern 1 as shown in FIG.

  Moreover, it is less than a predetermined rotation speed (predetermined value 1) set in advance, which is presumed that an excessive load is applied to the electric motor 16 disposed in the suction tool 3 because of cleaning of carpets with long hairs and the like. For example, also when it reduces to 2000 rpm, the vibration control means 15 notifies a user of the vibration part 7 by the vibration pattern 1 as shown in FIG.

  Furthermore, the cleaning operation is continued for a long period of time, and a large amount of hair, lint, etc. is entangled with the rotating brush 17 and the rotational speed of the rotating brush 17 is extremely reduced. If the motor is continuously used in this state, the motor 16 may be damaged, and a predetermined rotation speed (preliminarily set) that is estimated to be an abnormal state that requires the maintenance of the rotating brush 17 ( If the vibration control means 15 falls below a predetermined value 2), for example, 1000 rpm or less, the vibration control means 15 notifies the user that the vibration portion 7 is in an abnormal state with a vibration pattern 2 as shown in FIG.

  On the contrary, when the user is cleaning the flooring or the like, the rotation speed of the rotary brush 17 is increased, and it is estimated that there is a possibility that the floor surface of the flooring or the like may be damaged. In the case of increasing to, for example, 3500 rpm exceeding (predetermined value 3), the vibration control means 15 notifies the user of the vibration part 7 with the vibration pattern 3 as shown in FIG. Encourage them to avoid small scratches on the flooring.

  As described above, in the present embodiment, the state in which the rotation speed of the rotary brush 17 disposed in the suction tool 3 fluctuates and is not optimal can be accurately notified to the user not by sight but by touch. It is possible to provide an easy-to-use vacuum cleaner.

(Embodiment 2)
FIG. 5 is a control block diagram of the electric vacuum cleaner according to the second embodiment of the present invention, and FIG. 6 is a diagram showing the rotational speed detected by the rotational speed detection means of the vacuum cleaner, the user's operation, and the vibration pattern of the vibration section. It is a chart showing an example of the relationship. In addition, the same code | symbol is attached | subjected to the part which overlaps with the vacuum cleaner in Embodiment 1 mentioned above, and the description is abbreviate | omitted.

  As shown in FIG. 5, the electric vacuum cleaner according to the present embodiment is provided with a rotation speed variable means 19 that allows the user to freely change the rotation speed of the rotary brush 17 in the hand operation section 5. When the rotation speed variable means 19 is operated, the signal is transmitted to the control means 11 and a control signal is sent to the motor drive means 14 so that the rotation speed of the rotary brush 17 can be changed.

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

  As shown in FIG. 6, when a normal carpet is cleaned, when a control signal is sent from the motor driving means 14 with a setting of rotating the rotating brush 17 at, for example, 3000 rpm, the user loads a load such as flooring. When the floor surface having a small diameter is cleaned, the rotational speed detection means 18 detects that the rotational speed of the rotary brush 17 is a predetermined value 3, for example, 3500 rpm or more, and the vibration control means 15 causes the vibration part 7 to vibrate with the vibration pattern 3. Vibrate.

  When the user senses it, the user himself / herself can operate the rotation speed varying means 19 to reduce the rotation speed of the rotary brush 17. Therefore, it is possible to avoid a situation where a small scratch is caused on the flooring even if the cleaning work is performed for a long time by the user's own operation.

  On the other hand, when the user cleans a carpet having a slightly large load and a slightly long hair with the above-described setting, the rotational speed of the rotary brush 17 falls below the optimum range, and the rotational speed is a predetermined value 1, for example, 2500 rpm. The vibration control means 15 vibrates the vibration part 7 with the vibration pattern 1 by detecting the following. When the user senses it, the user himself / herself can operate the rotation speed variable means 19 to increase the rotation speed of the rotary brush 17. Therefore, efficient cleaning can be performed even on a carpet having a little long hair.

  As described above, in the present embodiment, the rotation speed of the rotary brush 17 can be changed by the user's operation and the rotation speed of the rotary brush suitable for cleaning can be maintained. Machine can be provided.

  As described above, the vacuum cleaner according to the present invention can accurately notify the user not by sight but by tactile sensation when the rotation speed of the rotary brush arranged in the suction tool fluctuates and becomes not optimal. It is possible to provide an easy-to-use vacuum cleaner.

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body 2 Electric blower 3 Suction tool 4 Extension pipe 5 Hand operation part 6 Hose 7 Vibration part 8 Hose connection part 9 Hand grip part 10 Power cord 11 Control means 13 Electric blower drive means 14 Electric motor drive means 15 Vibration control means 16 Electric motor 17 Rotating brush 18 Rotational speed detection means 19 Rotational speed variable means

Claims (5)

An electric blower that generates suction air, a suction tool that sucks dust by the suction force of the electric blower, a rotary brush that is rotatably provided on the suction tool, an electric motor that rotationally drives the rotary brush, and the rotation A rotation speed detecting means for detecting the rotation speed of the brush; a hand operating part that a user grips during a cleaning operation; and a vibration part that is provided in the vicinity of the hand operating part and that vibrates the hand operating part. A vacuum cleaner that vibrates the vibration part by a signal from a number detection means. 2. The electric vacuum cleaner according to claim 1, wherein when the rotational speed of the rotary brush detected by the rotational speed detection means is a predetermined value of 1 or less, the vibration part is vibrated with a normal vibration pattern 1. A predetermined value 2 that is smaller than the predetermined value 1 is provided, it is determined that the rotating brush has a rotational speed of the predetermined value 2 or less, and the vibration portion is vibrated with a vibration pattern 2 different from normal. Item 3. A vacuum cleaner according to item 2. If a predetermined value 3 greater than the predetermined value 1 is provided and the rotational speed of the rotating brush is equal to or greater than the predetermined value 3, it is determined that the rotational speed of the rotating brush has increased unnecessarily and may damage flooring such as flooring. The electric vacuum cleaner according to claim 2 or 3, wherein the vibration part is vibrated with a vibration pattern 3 different from normal or abnormal state notification. The vacuum cleaner according to any one of claims 1 to 4, further comprising a rotation speed variable means that allows a user to freely change the rotation speed of the rotating brush.