JPH01121028A - Electric cleaner - Google Patents

Abstract

PURPOSE: To enhance operability at a time of circulating operation by operating a changeover valve, a changeover switch and a safety device by an operation lever. CONSTITUTION: An operation lever 32 is set to a point of 'circulating operation' to operate a changeover valve 34 and a suction port 24 is closed while the opening part of a circulating air passage 31 is opened and an operation piece 27 is pushed in by the operating protruding part 33 of a changeover switch 26 to change over an electric circuit brom a remote circuit 18 to the circuit on the side of a manual return thermostat 30. At the same time, the rotary member 37 attached to the operation lever 32 falls to bring the inclined surface A of the leading end part of a long projection 39 into contact with the inclined surface B of the reset button 35 of a thermostat and the button 35 is pushed in while slid along the inclined surface B. When circulating operation is started by this mechanism, the exhaust air of an electromotive blower 5 is sucked into a circulating air passage 31 to pass through the opening part on the side of a suction port 24 and the circulating air stream again reaching the electromotive blower 5 through a paper bag filter 10 is generated and temp. rises gradually by the generation of heat in the electromotive blower 5 itself. At this time, the temp. of a dust collection chamber 4 reaches about 50 deg.C and a mite sucked into the filter 10 is killed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a vacuum cleaner capable of cyclic operation, and to simplifying the operation operation of the vacuum cleaner that performs cyclic operation.

[Conventional technology]

Figures 5 and 6 are structural diagrams showing a conventional vacuum cleaner. In Figure 2, # (1) is a moving wheel (2) on the bottom.

(3) The main case has a dust collection chamber (4!) inside the front.
At the same time, an electric blower (5) is built in at the rear of the dust collection chamber, and an exhaust port (6) is provided at the rear. (7) is an opening/closing lid that covers the dust collection chamber (4!) installed on the top of the main body case (1).

A suction port (9) to which the dust suction hose 181 is detachably connected
) has been established. αG is a paper bag fill J- installed in the dust collection chamber (4), (lfl is placed inside the rear of the main body case (1)).

A mounting plate fixed facing the exhaust chamber (12) provided on the exhaust side of the electric blower (5), with a cylindrical warm air circulation port αj on the top surface.
A holding cylindrical portion (I4) is integrally formed with a predetermined gap around the hot air circulation port 0.

α is a switch storage part that is formed integrally with the outside of the holding cylindrical part No. 0. The surface facing the hot air circulation port 0 is open. (lO is a changeover switch that is fixed to the switch storage part α, with the actuation piece αη facing into the gap between the hot air circulation port am and the dust suction hose (81) as shown in Figure 7. Switch between the circuit of 9 and the manual return type circuit described later.

A9 is a manual return type moss, and the heat sensitive part is moved to the exhaust chamber α.
2, and fix it to the mounting plate (11), align the reset button with the hot air circulation port 0, and attach the main body case (1).
It is exposed on the top.

01) is a temperature fuse fixed at the exhaust chamber (located at 1"3) on the bottom surface of the mounting plate α9. TS is located on the upper rear surface of the main body case (1) and is a hot air circulation port) and a reset button ■
A rubber gasket is attached to the back side to seal the warm air circulation port A3.

Figure 7 is an electrical circuit diagram, in which the general-purpose electric blower (5) is connected to the power supply via the energization control circuit: h, while the remote circuit α
(19 circuits directly control the energization control circuit and are low-voltage circuits.

In the above structure, 1 normal changeover switch α11 closes the T1 mote circuit brocade side, so when the remote circuit is turned on, the electric blower (5) operates and the dust on the tatami mats and carpets is sucked in from the dust suction hose (81). At the same time, dust mites are also sucked in and accumulate inside the two paper bag filter α.At this time,
The hot air circulation port a is closed with a lid, and the exhaust air is discharged from the rear exhaust port (6) of the main body case (1).

Next, when cleaning is finished, open the lid.

When the suction port at the end of the dust suction hose (81) is inserted into the hot air circulation port αj, the hose (81)
The operating piece αη is pushed and the circuit is switched to the manual return type square-moscut α3. If you press the reset button ■ in this state, the electric blower (5) will operate, and the exhaust air will be circulated between the dust suction hose (81), the dust collection chamber (4!), and the electric blower (51). (5) The temperature gradually rises due to its own heat generation.Thus, when the temperature of the exhaust chamber α2 reaches approximately 62°C, 1'l operates to open the circuit and tIiI+ Stop the operation of the blower (5). At this time, the temperature of the dust collection chamber (4) reaches approximately 50°C and the dust mites sucked into the paper bag fill J-a (1) are killed by heat. After this, when the dust suction hose (8) is removed from the hot air circulation port αj, the changeover switch will switch to the remote circuit side, and the lid will return to the hot air circulation port A3 and the reset button. Leave (2) covered.From now on, you can repeat the same operation every time you clean.

[Problem that the invention seeks to solve]

Conventional vacuum cleaners are configured as described above.
Except for the circulation operation, the dust suction hose is inserted into the hot air circulation port, which poses a problem in that it is difficult to operate.

This invention was made in order to solve the above-mentioned table problems, and aims to provide a vacuum cleaner that is easy to operate during circulation operation.

[Means to solve the problem]

A vacuum cleaner according to the present invention houses an electric blower, has a dust collection chamber communicating with the suction side of the electric blower, and has a suction port on the suction side of the dust collection chamber and an exhaust port on the exhaust side of the electric blower. a vacuum cleaner body having an exhaust port, a dust collection air path connected to the suction port, and a circulating air path with one end opening to the exhaust side of the electric blower and the other end opening to the suction port or dust collection air path side. , the circulation air path is closed, and the suction port b is in a first state where the dust collection air path is opened, and the suction port or the dust collection air path is closed;
A switching valve having a second state that opens the circulation air passage, an operating lever that switches the switching valve between the first state and the second state, an operating lever that switches the switching valve, and a switching valve that responds to the switching of the operating lever. and the first
a changeover switch that switches between the circuit and a second circuit that operates in the second state, a safety device provided in the second circuit that operates in the second state, and the safety device is connected to the operating lever. It is designed to operate in response to the switching of.

[Effect]

The vacuum cleaner according to the present invention has an operating lever, a switching valve for opening and closing the circulation air passage and the suction port, a switching valve for opening and closing the dust collection air passage, a switching switch for switching between the first circuit and the second circuit, and a second switch for switching between the first circuit and the second circuit. Operate the safety devices installed in the circuit.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings.

In Figures 1, 2, and 3, (1) is the main case with moving wheels f2+ on the bottom, and (3) has a dust collection chamber (4!) formed in the front interior. An electric blower (5) is built into the rear of the room (4!), and an exhaust port (61) is provided at the rear.

Dust collection chamber (4! Opening/closing lid with suction port @ in front (c)
has been established. αα is a paper bag filter built into the dust collection chamber (4!), and a changeover switch with an operating piece.

Suction port c! The actuating piece @ faces the hole of No. 4, and a dust-proof rubber sheet (to) is glued to the upper surface of the hole, and as shown in Fig. 4, a remote circuit t1B is attached to the dust suction hose (to be described). and the circuit on the side of the manual return thermostat (to), which will be described later. @ is a dust suction hose that is a dust collection air path connected to the suction port. (To) is a manual return thermostat which is a safety device, and its heat-sensitive part faces into the circulation air path c111, which will be described later. ((11 is the circulation air path,
One end opens to the exhaust side of the electric blower (5).

The other end opens to the suction port (2). (To) is the operation lever, which has two points: "normal operation" and "circulation operation", and is integrated with the switching valve (B) and the convex part for operating the changeover switch handle (To), which will be described later. . (B) is a switching light valve that opens and closes the suction port (2) and the suction bottom @ side opening portion of the circulation air passage C3+1. (To) Manual return thermostat to 11
Press the reset button to set the slope (B) and flat surface).
Set up a. (to) is a shaft provided integrally with the operating lever (to), and the kiln is a rotating member that is fitted into the shaft and has a short protrusion (to) and a long protrusion OI, and the tip of the long protrusion (to) A slope (A> and a plane (C') are provided for b.01
is a first stopper that limits the movement range of the rotating member.

The operation lever (to) is integrally provided. [4)) is the second stopper that limits the movement range of the short protrusion (to).

It is integrated with the opening/closing lid. This is a stopper that connects the main body case (1) and the opening/closing lid (to), and the container is a temperature fuse provided at the intake side opening of the circulation air path c311.

Arrows in FIGS. 1 and 2 indicate air flow.

In the vacuum cleaner configured as described above.

During normal operation, as shown in Figure 1, the switching valve closes the opening on the inlet side of the circulating air passage 011 and leaves the suction port open, as shown in Figure 4. As shown in the figure, the remote circuit is on the Nishiki side. Next, when cleaning is finished, in order to kill the inhaled mites, etc., set the operating lever (K) to the "circulation operation" point. From K, disable the switching valve (B) and turn the suction valve (B) off as shown in Figure 2. Close your mouth (2),
With the suction hole e4) side opening of the circulation air passage 0υ open, the operation protrusion (2) of the changeover switch (a) pushes in the actuating piece ■, which causes the changeover switch handle to close the electric circuit. is switched from the II motor circuit αl to the circuit on the manual return thermostat (to) side, and the rotating member attached to the operating lever also moves downward, so that the inclined surface (A) at the tip of the long protrusion 01 becomes 1. Manual return thermostat (
(to) makes surface contact with the inclined surface (B) of the reset button (g). Since the rotating member is provided with the first stopper 01 in such a way that it cannot be rotated counterclockwise, the inclined surface at the tip of the long protrusion (toward the end of the long protrusion) must be pressed against the reset button 0. Slope c! 3) Complete the set point (to)
Push in. In this way, the switching valve (
B), Switching sweet cow C, J manual return - Monutat (
When the I+ upper set button (G) is operated to start circulation operation, the exhaust air of the dynamic fan (5) is
5) is sucked into the electric blower (circulating air passage 01 opened on the exhaust side of 51), passed through the opening on the suction port 24) side, and filtered through the paper bag filter a1 installed in the dust collection chamber (4!). A circulating airflow is generated that reaches the electric blower (5) again through the electric blower, and the temperature gradually rises due to the heat generated by the electric blower (5) itself.

In this way, when the temperature of the circulation air path C (11) reaches approximately 62°C, the 1 manual return thermostat (to) operates to open the circuit and stop the operation of the electric blower (5).At this time, the dust collection chamber (4 ) reaches approximately 50℃, and the dust mites that have sucked into the p2 paper bag filter α0 are killed by the heat.If you want to resume normal operation, turn the operating lever 03 to ``normal operation''.
By moving the switching valve C to the point of , the suction hole of the circulation air passage C31+ is changed! Close the 4th side receptacle, open the suction port @, and release the changeover switch 031 from the operating piece ■. Switches from the side circuit to the remote circuit side. At this time, the rotating member (9
) also rises upward, and the flat surface of the tip of the elongated protrusion C1←) contacts the flat surface (D) of the reset button (c) of the manual return thermostat (7). As the rotating member OP rises, it rotates clockwise until it returns manually to the plane (0) at the tip of the elongated protrusion (G). The contact surface with D) is narrowed, and finally the contact surface is exposed to external force, and the tip of the long protrusion (to) becomes a second stopper (when 4II hits the short protrusion (to), the first rotating member (support) rotates. slope of the reset button (to) Φ)
ride on top. In this case, the plane (C) at the tip of the long protrusion (to) touches the plane C1) of the reset button (g) of the manual return thermostat ω, but the long protrusion (to) rotates clockwise and escapes. , IJ upper set button (g).

No forced offers. After operating the changeover valve (RO) and the changeover switch via the operating lever (TO) in this manner, normal operation is possible by turning on the remote circuit side provided on the dust suction hose (TO). From now on, you can repeat the same operation every time you clean. In addition, in the above embodiment, the air path during circulation operation is connected directly from the circulation air path (No. 4) to the electric blower (No. 4).
), but the air passage is configured so that the exhaust air flows from the circulation air passage (GI) to the dust collection chamber (
Even if the exhaust air from the electric blower (5) is configured to flow to 4), it will be even better.Also, in the above embodiment, the manual return thermostat ■ is reset mechanically, but it can also be operated electrically using a solenoid, etc. It doesn't even go as far as b5.

〔Effect of the invention〕

As explained above, the present invention is configured so that the changeover valve, changeover switch, and safety device are operated by the operation lever, so that the operability is significantly improved.

[Brief Description of the Drawings] Fig. 1 is a structural diagram showing a normal operating state of an embodiment of the present invention, Fig. 2 is a structural diagram showing a circulating operating state of an embodiment of the present invention, and Fig. 3 is a structural diagram showing a cyclic operating state of an embodiment of the present invention. An explanatory diagram illustrating the operation of the safety device section of an embodiment of the invention, FIG. 4 is an electric circuit diagram used in an embodiment of the invention, FIG. 5 is a structural diagram showing a conventional vacuum cleaner, and FIG. 6 1 is a structural diagram of a hot air circulation port of a conventional vacuum cleaner, and FIG. 1 is an electrical circuit diagram of the conventional vacuum cleaner. In the figure, (1) is the vacuum cleaner body, (4I is the dust collection chamber # (
5) is an electric blower, cl! 4) is the suction port, ■ is the changeover switch. (2) is the dust collection air path, (to) is the safety device, G11l is the circulation air path, CL15 is the operating lever, and (b) is the switching valve. In the figure, the PIl- symbol indicates the same or equivalent part.

Claims (8)

[Claims] (1) Cleaning that houses an electric blower, has a dust collection chamber communicating with the suction side of the electric blower, and has a suction port on the suction side of the dust collection chamber and an exhaust port on the exhaust side of the electric blower. A machine body, a dust collection air path connected to the suction port, a circulation air path with one end opening to the exhaust side of the electric blower and the other end opening to the suction port or the dust collection air path side; close,
A first state in which the suction port or dust collection air path is opened, and a second state in which the suction port or dust collection air path is closed and the circulation air path is opened.
a switching valve having a state, an operating lever for switching the switching valve between the first state and the second state, a first circuit that operates in the first state in response to switching of the operating lever; a changeover switch for switching between the second circuit and the second circuit that operates in the second state; and a safety device provided in the second circuit that operates in the second state, and the safety device is used to switch the operating lever. A vacuum cleaner that operates in response. (2) In the first state, intake air from the dust collection air path flows from the dust collection chamber and the electric blower to the exhaust port, and in the second state, the exhaust air from the electric blower flows directly from the circulation air path to the dust collection chamber. The vacuum cleaner according to claim 1, characterized in that the vacuum cleaner is made to flow. (3) In the first state, the intake air from the dust collection air path flows from the dust collection chamber and the electric blower to the exhaust port, and in the second state, the exhaust air from the electric blower passes through the circulation air path to the dust collection air path. 2. The vacuum cleaner according to claim 1, wherein the vacuum cleaner is configured to flow from the dust collection chamber to the dust collection chamber. (4) The vacuum cleaner according to any one of claims 1 to 3, wherein the operating lever can be operated manually. (5) The vacuum cleaner according to any one of claims 1 to 4, wherein the first circuit includes a remote circuit. (6) Claims 1 to 5, characterized in that a manual return thermostat is used as the safety device of the second circuit.
The vacuum cleaner described in any of the paragraphs. (7) The operating lever operates the reset button of the safety device only when the switching valve is operated from the first state to the second state. A vacuum cleaner described in Crab. (8) The vacuum cleaner according to any one of claims 1 to 7, characterized in that the operating lever and the switching valve are integrally provided.