JPS6349116A - Upright type electric cleaner - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to the configuration of a switch for controlling the drive of an upright vacuum cleaner.

BACKGROUND OF THE INVENTION Generally, in upright vacuum cleaners, a switch for controlling one drive of the electric blower or lighting device is provided at the top of the main body or at the handle.
This switch uses a sliding or seesaw type electrical contact switch. However, if this type of switch is installed, it will be necessary to turn it on and off each time objects such as the floor are moved during cleaning work, and if you forget to turn it off, the rotating brush of the floor nozzle will not touch the floor. There was a problem in that if carpet was being laid by raking up the same area, it would damage the carpet.

Therefore, in order to solve this problem, an upright vacuum cleaner with a switch that automatically stops the rotating brush and drive motor when the floor nozzle part is stopped relative to the floor surface was proposed. It is known from the publication No. 56-40119.

This configuration will be explained with reference to FIGS. 4 to 6.

In Figures 4 to 6, 1 is a main body case in which an electric blower 2 is built in, and a suction port 3 is formed on the lower front surface of the main body case, and a dust collection section 4 is provided in communication with this suction port 3. It is.

A communication port 6 is formed between the dust collecting section 4 and the electric blower 2. Further, in the vicinity of the suction port 3, a rotary brush 6 is rotatably provided with a lower portion of the brush 6 projecting downward so as to come into contact with the floor surface. This rotating brush 6 is connected to an electric motor 7 by a belt 8. The handle 9 provided at the upper rear part of the main body case 1 has a handle portion 10 (
It has a power switch 11. The handle mounting portion 12 of the main body case 1 has two guide recesses 13, 1 at the front and rear.
4 are formed, and springs 15 and 16 are mounted in the guide recesses 13 and 14, respectively. A handle holder 17 is slidably provided between the springs 15 and 16, and the handle 9 is fixed to this handle holder 17. Switches 18 and 19 are also provided which are closed to control energization when the handle holder 17 moves forward or backward from the center position.

Electrical connections between the electric blower 2, power switch 11, etc. are constructed as shown in FIG.

A power switch 11 and an electric blower 2 are connected in series to a power source, and a series circuit consisting of a motor 7 and switches 18 and 19 connected in parallel is connected to the electric blower 2 in parallel.

The operation of the above configuration will be explained below.

First, grasp the handle 10 of the handle 9 and turn on the power switch 1.
1, the main body case 1 is moved forward or backward using the handle 1Q to perform cleaning work. power switch 1
1, the electric blower 2 becomes energized,
Dust is sucked into the dust collection part 4 from the suction port 3. On the other hand, even if the power switch 11 is turned on, the operation of the electric motor 7 differs depending on the state of the main body case 1. That is, when the handle 9 is pushed or pulled forward in order to move the case 1 relative to the floor, the handle holder 17 connected to the handle 9 is moved by the spring 15 or the spring 16.
It is displaced along the guide recess 13 or the guide recess 14 against zero elasticity, and the switch 18 or the switch 19 is closed. When the switch 18 or the switch 19 is closed, the electric motor 7 becomes energized, and the rotating swing 6 rotates.

On the other hand, when the movement of the main body case 1 is stopped, for example to move an article on the floor, no force is applied to the handle 9 in the longitudinal direction, so that the spring 16 or the spring 16 is not applied to the handle holder 17. No force resisting the elasticity acts, the handle pedestal 17 is located at the neutral position, the switches 18 and 19 are both open, the power to the electric motor 7 is cut off, and the rotating brush 6 is stopped.

Problems to be Solved by the Invention However, in the conventional configuration described above, when objects on the floor are moved during the cleaning process, the electric motor 7 that rotates the rotating brush 6 is stopped, but the electric blower 2 is stopped. It continues to operate and consumes a lot of power. Also, the power switch 11
The electric motor 7 is controlled by three switches (18, 19, 18, 19, and springs 5, 16, etc.), which requires a large number of parts and is problematic in terms of parts cost. Ta.

The present invention solves the above conventional problems, and is an upright type electric blower with excellent operability and quality that automatically controls the movement of the electric blower depending on whether or not the user is holding the handle. The purpose is to provide vacuum cleaners.

Means for Solving the Problems In order to achieve this object, the upright vacuum cleaner of the present invention has a configuration in which a pressure switch for controlling at least the drive of an electric blower is provided in the handle portion of the handle.

Operation With the above configuration, when the user is holding the handle with his or her hand, the pressure switch closes and the electric blower starts, and when the user takes his or her hand off the handle, the pressure switch is opened. The electric blower will stop.

EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 to 3.

In FIGS. 1 to 3, reference numeral 20 denotes a floor nozzle section containing a rotating brush 21, and a lower surface 22 of this floor nozzle section 20.
A suction port 23 is formed in the inlet. Rollers 24 and 25 are rotatably attached to the lower surface 22 of the lid, and maintain a substantially constant gap between the floor surface and the lower surface 23. A main body part 26 is provided at the rear of the floor nozzle part 20 so as to be tiltable. The main body 26 includes an electric blower 2 which sucks dust and rotates the rotating brush 21, a filter 28 which collects dust, and a dust collection chamber 29. The electric blower 27 and the rotating brush 21 are connected by a belt 30. Further, the floor nozzle section 20 and the main body section 26 are communicated with each other through a hose 31. A handle 32 for operation is provided at the upper end of the main body 26.
A handle portion 321 bent into a substantially doglegged shape is formed at the end of the handle portion 2 . This handle portion 32Δ is made of hard synthetic resin. A pressure switch 3 is arranged in a string shape on this handle part 32a.
3 is installed. This pressure sensitive resistor layer 338L includes a pressure sensitive resistor layer 338L made of conductive rubber or the like whose electrical resistance value between both surfaces decreases when pressure is applied, and a conductor disposed on both sides of this pressure sensitive resistor layer 332L. Layers 33b, 33C
It is formed from. The conductive layers 33b and 330 are connected in series to the electric blower 27 and the power source by a connecting wire 34.

The pressure inlet 33 and the handle part 32't are fixed by a grip 35 made of flexible and insulating synthetic resin.The operation of the above structure will be explained below.First, a cleaning operation is performed. In order to do this, as shown in FIG. 3, when the user grasps the handle 321L with his/her hand, pressure is applied to the pressure sensitive resistor layer 33a of the pressure switch 33 due to the force of the grip and the pressure generated due to the bending. As a result, the electrical resistance value between both surfaces decreases, electrical conduction occurs between the conductor layers 33b and 330, and the pressure switch 33 becomes in a closed state. Here, the electric blower 27 is driven. Next, when the user releases the handle 32a, the pressure switch 33 assumes the shape shown in FIG.
The pressure applied to the pressure sensitive resistor layer 332L is eliminated, the conductor layers 33b and 330 are insulated, and the pressure switch 3
3 is in an open state, and the electric blower 27 is stopped.

According to the present embodiment with the above-described configuration, the electric blower 27
Furthermore, by providing the pressure switch 33 in a string shape on the bent handle portion 322L, the pressure associated with the gripping force and bending is applied to the pressure sensitive resistor layer 332L. Therefore, even users with weak grip strength (women and children) can easily operate it, and
Even if the upright vacuum cleaner falls over, it is possible to prevent malfunction due to pressure being applied to the pressure switch 33.

Effects of the Invention As is clear from the description of the embodiments above, according to the upright vacuum cleaner of the present invention, a pressure inch for controlling at least the drive of the electric blower is provided in the handle portion of the handle, so that the user can easily The drive of the electric blower is controlled by the hand gripping the handle, eliminating the need for important operations found in electrical contact switches, etc., and preventing damage to the floor surface etc. due to forgetting to turn off the switch.

Therefore, according to the present invention, it is possible to provide an upright vacuum cleaner with excellent operability and high reliability.

[Brief explanation of drawings]

Fig. 1 is a vertical cross-sectional view of essential parts of an upright vacuum cleaner according to an embodiment of the present invention, Fig. 2 is a longitudinal cross-sectional view of the upright vacuum cleaner, Fig. 3 is an explanatory view of the same, and Fig. 4 is a longitudinal sectional view of the main parts of an upright vacuum cleaner according to an embodiment of the present invention. FIG. 5 is a longitudinal sectional view of a conventional upright vacuum cleaner, FIG. 5 is a sectional view of the main parts thereof, and FIG. 6 is an electric circuit diagram of the upright vacuum cleaner. 2o...Floor nozzle part, 26...Body part, 27...Electric blower, 32...Handle, 32? L...Handle, 33...Pressure tip.

Claims (3)

[Claims] (1) A floor nozzle section, a main body section having at least an electric blower tiltably provided at the rear of the floor nozzle section, and a handle provided at the upper end of the main body section, and a handle section of the handle section includes at least the electric blower. An upright vacuum cleaner characterized by being equipped with a pressure switch that controls the operation of an electric blower. (2) An upright vacuum cleaner according to claim 1, characterized in that a bent handle is provided at the end of the handle, and a pressure switch is provided in the shape of a string on the handle. (3) A patent claim in which a pressure switch has a pressure-sensitive resistor layer whose electrical resistance value between both surfaces decreases when pressure is applied, and a conductive layer disposed on both sides of the pressure-sensitive resistor layer. An upright vacuum cleaner according to item 1.