JP2011244974A - Vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vacuum cleaner securing a higher safety, suppressing the cost increase.SOLUTION: The vacuum cleaner includes: a control means 20 for controlling an electric fan 2 in a cleaner body (not shown); a connection detecting means 40 for detecting the connection between a hose (not shown), attachable to and detachable from the cleaner body, and leading dust to the cleaner body, and the cleaner body; an operation part 60 provided at a handle of the hose (not shown), and provided with a stop switch (not shown) for stopping the operation of the electric fan 2; a determination means 30 for determining whether the electric fan 2 being stopped is before starting the cleaning or during a cleaning interruption condition; and an operation prohibition means 21 for prohibiting the operation of the electric fan 2 when the determination means 30 determines that the stopped electric fan is before starting the cleaning. The prohibition is released when the hose is connected to the cleaner body while operating the stop switch. Thus, the cost increase is suppressed by using an existing operation part 60, and the electric fan 2 does not operate and is safe even if an infant operates the operation part 60 carelessly.

Description

  The present invention relates to a vacuum cleaner for general household use or business use, and particularly relates to improvement of safety.

  In recent years, the convenience of home appliances has been improved and the demand for safety has increased, and not only the safety at the time of failure but also the improvement of safety against misuse has been demanded. As for the conventional vacuum cleaner, as disclosed in Patent Document 1 for securing safety, as disclosed in Patent Document 2, the vacuum cleaner designed to secure the safety against the rotating brush, or as disclosed in Patent Document 2 There are proposed vacuum cleaners that do not operate when the hose is not connected, and vacuum cleaners that detect the sticking and stop the electric blower as disclosed in Patent Document 3. Yes.

JP 2001-137165 A JP-A-6-304107 JP-A-8-24185

  However, considering securing higher safety, for example, considering safety for infants, conventional vacuum cleaners such as those disclosed in Patent Documents 1 and 3 are not suitable for infants. It does not correspond to the event itself of driving, and all of them are limited to the response after the operation of the vacuum cleaner, and there is a problem that an unsafe state occurs even if it is instantaneous. Moreover, in the structure of the conventional vacuum cleaner which was disclosed by patent document 2, when the hose was stored in the state connected to the vacuum cleaner main body, it is meaningless and it can be said that safety is necessarily high. It was not.

  There are also many home appliances with child lock functions, but it is expensive for vacuum cleaners with few switches to operate, such as costly provision of a separate switch or pressing a specific switch for a few seconds. It is difficult to operate and is unsuitable.

  The present invention solves the above-described conventional problems, and suppresses an increase in cost, and even if an infant or the like operates the operation unit, the electric blower does not operate carelessly and has excellent safety. The purpose is to provide a vacuum cleaner.

In order to solve the above-mentioned conventional problems, the vacuum cleaner of the present invention includes a vacuum cleaner body including an electric blower that generates suction air, a control unit for controlling the electric blower, and the vacuum cleaner body. A hose that is detachably connected, guides dust to the vacuum cleaner body by the suction air of the electric blower, connection detection means for detecting connection between the hose and the vacuum cleaner body, and provided on a handle of the hose, An operation unit having a switch for instructing the operation and stop of the electric blower, a determination means for determining whether the electric blower is in a cleaning interrupted state or not when the electric blower is stopped, and the determination Operation prohibiting means for prohibiting the operation of the electric blower when it is determined that the means is before the start of cleaning, and the prohibition includes cleaning the hose while performing a predetermined operation of the switch. It is released when it is connected to the main unit, and while using an existing operation unit to suppress the increase in cost, even if an infant or the like operates the operation unit, the electric blower is not inadvertently operated and is safe Sex can be secured.

  The vacuum cleaner of the present invention can ensure higher safety while suppressing an increase in cost.

Schematic of the vacuum cleaner in Embodiment 1 of the present invention Enlarged view of the top surface of the handle of the vacuum cleaner Block diagram of the vacuum cleaner

  A first aspect of the present invention is a vacuum cleaner body provided with an electric blower that generates suction air, a control means for controlling the electric blower, and is detachably connected to the vacuum cleaner body. A hose for guiding dust to the vacuum cleaner body, connection detection means for detecting the connection between the hose and the vacuum cleaner body, and a switch provided on the handle of the hose to instruct the operation and stop of the electric blower. The operation unit provided, and when the electric blower is stopped, a determination unit that determines whether it is before the start of cleaning or a cleaning interruption state, and when the determination unit determines that the cleaning is not started Operation prohibiting means for prohibiting the operation of the electric blower, the prohibition is released when the hose is connected to the cleaner body while performing a predetermined operation of the switch, While using the operation unit of the presence suppressing an increase in cost, it can be like infant even by operating the operation unit, inadvertently to ensure it is not safety electric blower is operated.

  The second invention, in particular, comprises a time measuring means for measuring the time since the electric blower of the first invention stopped, and the judging means is when the time measured by the time measuring means is a predetermined time or more, It is determined that the cleaning is not started, and when cleaning is temporarily interrupted, it is determined that the cleaning is not started. Can be improved.

  In a third aspect of the invention, in particular, in the electric vacuum cleaner of the first aspect of the invention, the electric vacuum cleaner has a power plug and a power cord for supplying power to the electric blower, and the judging means is configured to connect the power plug to a power source. The time until the electric blower operates for the first time is determined to be before the start of cleaning, and it is possible to determine more accurately before the start of cleaning by detecting the operation to be performed after the end of cleaning of removing the power plug. And convenience can be improved.

  In particular, the fourth invention includes a secondary battery that is built in the cleaner body of the first invention and supplies electric power to the electric blower, and a charge detection means for detecting the charge of the secondary battery, and a judging means. Is determined to be before the start of cleaning until the electric blower operates for the first time after the charge detection means detects the charge, by detecting the charging operation performed after the cleaning is completed. Therefore, it can be determined more accurately before the start of cleaning, and convenience can be improved.

  In particular, the fifth invention includes an operation switch for operating the electric blower and a stop switch for stopping the electric blower as the switch of any one of the first to fourth inventions, and a predetermined operation. By operating the stop switch, the electric blower can be prevented from operating unexpectedly at the moment when the prohibition of the operation of the electric blower is invalidated, and higher safety can be ensured.

  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)
The vacuum cleaner in Embodiment 1 of this invention is demonstrated using FIGS. FIG. 1 is an overall view of the vacuum cleaner according to the present embodiment, FIG. 2 is an enlarged view of the upper surface of a hand handle of the vacuum cleaner, and FIG. 3 is a block diagram of the vacuum cleaner.

  1-3, 1 is the vacuum cleaner main body of the vacuum cleaner in this Embodiment, 2 is the electric blower built in the vacuum cleaner main body 1, and the control means 20 was provided with the power plug 11. The electric power supplied from the power cord 10 is supplied to the electric blower 2 by phase control, and the electric blower 2 is operated.

  One end of the suction air generated by the operated electric blower 2 is transmitted to the suction tool 8 through the hose 4 that can be attached to and detached from the cleaner body 1 and the extension pipe 7, and the suction tool 8 sucks dust on the floor from the suction tool 8. To do. The other end of the hose 4 is provided with a hand handle 6 which is a handle for the user to hold, and the hand handle 6 includes an operation unit 60 for instructing the control means 20 to operate the electric blower 2. Yes.

  As shown in the enlarged view of FIG. 2, the operation unit 60 includes a strong switch 61, a middle switch 62, a weak switch 63, and a stop switch 64. When the user performs cleaning, the strong switch 61, Either the middle switch 62 or the weak switch 63 is operated. When the strong switch 61 is operated, the control means 20 sets the input to the electric blower 2 to 900 W, operates the middle switch 62 to 400 W, and operates the weak switch 63 to 200 W. (Hereinafter, the respective operation modes are set to a strong mode, a medium mode, and a weak mode, and these three modes are collectively referred to as an operation mode).

  When the stop switch 64 is operated in the operation mode, the power supply to the electric blower 2 is cut off and the operation is stopped (hereinafter referred to as the stop mode). The time measuring means 50 measures the time during which the stop mode continues, and the connection detecting means 40 detects whether or not the hose 4 is connected to the cleaner body 1.

  In the stop mode, the determination unit 30 determines whether the stop mode is before the start of cleaning or not (cleaning interrupted state). The determination unit 30 shifts to the operation mode once after the time measured by the time measuring unit 50 is a predetermined time or longer, for example, 3 minutes or longer, or after the power plug 11 is connected to the power source 12 such as an outlet. If not, it is determined that the cleaning has not started.

  Then, the operation prohibiting means 21 controls the prohibiting signal for prohibiting the operation of the electric blower 2 when the determination means 30 is switched from the undetermined state or the cleaning interruption state to the start of cleaning. 20 is output.

  This prohibition signal continues to be output until the prohibition of the operation of the electric blower 2 is released. During this time, the control means 20 maintains the stop mode even if the strong switch 61, the middle switch 62, and the weak switch 63 are operated. .

  In order to cancel this prohibition, the hose 4 is connected to the cleaner body 1 while the stop switch 64 is operated. When the hose 4 is already connected to the cleaner body 1, it is necessary to remove the hose 4 from the cleaner body 1 and reconnect it.

  Thus, according to the vacuum cleaner in the present embodiment, an operation that is not performed inadvertently, such as connecting the hose 4 to the cleaner body 1 while pressing the stop switch 64 before starting cleaning. Otherwise, since the electric blower 2 does not operate, even if an infant or the like plays and touches or touches the strong switch 61, the middle switch 62, or the weak switch 63, the electric blower 2 may be inadvertently operated. And a highly safe vacuum cleaner can be realized.

  In the present embodiment, there are two determination conditions, the time measurement by the time measuring means 50 and the connection of the power plug 11 to the power supply 12, and the determination is made when one of the conditions is determined to be before the start of cleaning. The means 30 has determined that the cleaning has not yet started, but it maintains higher safety, and at the same time, the driving power source of the timing means 50 is shared with the power source for driving the electric blower 2, and the power plug 11 is used. It is possible to operate as requested even if the timing of the timing means 50 is reset after being disconnected from the power source 12, and the cost aspect that it is not necessary to provide a separate power source for the timing means 50 is also considered. is there.

  However, in this case, when cleaning a plurality of rooms, even if the power plug 11 is unplugged from the power supply 12 due to the movement of the room, it is determined that the cleaning has not started yet, and the operation for invalidating the prohibition again is performed. It becomes necessary and causes a slight hindrance to convenience.

  Therefore, although the cost increases, the time measuring means 50 can be kept time-measured by using another power source, for example, an electric double layer capacitor (not shown). If the determination means 30 determines that the cleaning is not started when both of the two determination conditions for the connection to the terminal are determined to be before the cleaning, safety is ensured without impairing convenience. can do.

  Also, in the case of a rechargeable vacuum cleaner using a secondary battery, after cleaning, the battery is charged for the next cleaning, so a charge detection means (not shown) for detecting the charge of the secondary battery is provided. If this charging action is replaced with an action in which the power plug 11 is disconnected from the power supply 12 and connected to the power supply 12 again, the same effect can be obtained.

  As described above, the vacuum cleaner according to the present invention can ensure higher safety while suppressing an increase in cost, and can be used for general vacuum cleaners regardless of home use or business use.

1 Vacuum Cleaner Body 2 Electric Blower 4 Hose 6 Hand Handle (Handle)
7 Extension pipe 8 Suction tool 10 Power cord 11 Power plug 12 Power supply 20 Control means 21 Operation prohibition means 30 Judgment means 40 Connection detection means 50 Timing measuring means 60 Operation part 61 Strong switch 62 Medium switch 63 Weak switch 64 Stop switch

Claims (5)

A vacuum cleaner body provided with an electric blower for generating suction air, a control means for controlling the electric blower, and detachably connected to the vacuum cleaner body, and dust is removed by the suction air of the electric blower. A hose leading to the main body, a connection detecting means for detecting the connection between the hose and the main body of the cleaner, an operation unit provided on a handle of the hose and provided with a switch for instructing the operation and stop of the electric blower, When the electric blower is stopped, judging means for judging whether the electric blower is before the start of cleaning or a cleaning interruption state, and prohibiting the operation of the electric blower when the judging means judges that the cleaning is not started. And the prohibition is canceled when the hose is connected to the cleaner body while performing a predetermined operation of the switch. Machine. The time measuring means which measures time after an electric blower stops is provided, and a judgment means judges that it is before cleaning start, when the time measured by the said time measuring means is more than predetermined time. Electric vacuum cleaner. It has a power plug and a power cord for supplying power to the electric blower, and the determination means is before the start of cleaning until the electric blower operates for the first time after the power plug is connected to the power source. The electric vacuum cleaner according to claim 1 to judge. A secondary battery built in the vacuum cleaner body and supplying electric power to the electric blower; and charge detection means for detecting charging of the secondary battery; and the determination means is configured to detect charge after the charge detection means detects charge. The electric vacuum cleaner according to claim 1, wherein it is determined that the period until the electric blower is operated for the first time is before the start of cleaning. 2. An operation switch for operating the electric blower and a stop switch for stopping the electric blower are provided as switches, and the predetermined operation is to operate the stop switch. The vacuum cleaner of any one of -4.