JPH02147040A - Electric cleaner - Google Patents

Abstract

PURPOSE:To prevent shock from being received even when a hand contacts a main body case by integrally molding a conductive member-made bumper body arranged in the main body case, with a connector for ground connected to an electric air blower. CONSTITUTION:A main body case 5 constitutes an outer shell with a lower case 6, an upper case 8 to form an equipment housing room and a dust collecting room 11 to have a sucking port 10 which covers the dust collecting room to be freely opened/closed and connects a sucking hose 4 freely attachably/ detachably. Then, conductivity is obtained on an outer surface. A conductive member-made bumper body 19 is arranged by inserting a fitting and engaging part 19a to an opening edge 20 of the lower case 6. Static electricity generated in the cleaner main body case 5 by friction, etc., with a sucked air current including dust by the operation of an electric air blower 12 is collected from the conductive outer surface of the main body case 5 to the conductive member- made bumper 19 and grounded through a connector 21 for ground to the electric air blower 12. Further, the static electricity is grounded in a commercial power source side. Accordingly, even when a user touches the cleaner main body case by the hand, the shock due to the static electricity is not received.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a vacuum cleaner having a static electricity discharge mechanism.

<[I] Prior art As a technology prior to the present invention, for example, Utility Model Application No. 58611
In order to discharge static electricity generated by airflow, the No. 58 publication provides conductive parts for collecting static electricity on parts such as hoses, bubbles, suction tools, etc., and each 11! A vacuum cleaner is shown in which a current-carrying path is formed by connecting the parts and forming a grounding path.

(c) Problems to be Solved by the Invention In the prior art described above, the configuration of the discharge mechanism is complicated;
The disadvantage is that the number of parts used increases.

Also, generally when the vacuum cleaner main body case is made of synthetic resin, there is a band of static electricity! Even if the voltage is high, the charge remains dispersed, so even if you touch the vacuum cleaner case, the impact you receive is small.

However, for example, a vacuum cleaner body case that has been plated with chrome or other plating on the outer periphery of the surface has good conductivity, and when you touch the body case, the static electricity that is charged on that part can be removed. There is a risk that the electric charges will be concentrated and a large 1j attack will occur.

The present invention has been made in view of the above, and has a simple configuration that efficiently discharges static electricity charged in the vacuum cleaner main body case, which has a conductive outer periphery, and does not receive a shock even when the main body case is touched. This is how it was done.

(d) Means for Solving the Problems In order to solve the above problems, the vacuum cleaner of the present invention includes a vacuum cleaner body case whose outer surface is conductive, and a vacuum cleaner body case whose outer surface is conductive.
The electric blower housed in the case and the bumper body made of a conductive material disposed in the main body case, and the bumper body has a grounding connection piece integrally molded therein to be connected to the electric blower fR machine. It is a feature.

In addition, in order to solve the problems described in (1)-, the vacuum cleaner of the present invention includes a vacuum cleaner main body case whose outer surface is conductive, an electric blower housed in the main body case, and an electric blower disposed in the main body case. a bumper body, and a combination of the bumper body and the main body.
Place one end between the two ends of the l. It may be characterized by comprising a ground wire member with high resistance, the other end of which is connected to the machine.

(e) Function: In the vacuum cleaner according to claim 1, static electricity generated in the returning machine main body booth due to the airflow is grounded to the electric blower via the integrated grounding connection piece made of a conductive material. Furthermore, the electric blower is grounded to the industrial commercial power supply (fl) through its high insulation resistance.

In the vacuum cleaner according to claim 2, the +iif static electricity is grounded to the electric blower from the conductive outer surface of the vacuum cleaner main body case via a high-resistance ground wire member,
Furthermore, through the high insulation resistance of the electric blower, commercial NfA
(Grounded to Il+.Also, even if the electric blower fails, the commercial power supply voltage will not be applied to the vacuum cleaner main body case due to the presence of high resistance.

Embodiment Next, the vacuum cleaner of the present invention will be explained based on an embodiment shown in the drawings.

1) is for the vacuum cleaner itself, (2) is for the floor suction, and (3) is for the vacuum cleaner itself.
is a connecting pipe, and <4> is a suction hose.

5) is a vacuum cleaner main body lease made of synthetic resin of the vacuum cleaner main body (1>), and the main body case (5) covers the lower case (6) and the upper half of the second half of the lower case (6). #J[ki[
1 = case (8) forming an equipment storage chamber (7) with 1
) and a dust collection chamber (9) formed in the front tL portion of the lower case (6) that communicates with the Ia device storage chamber (7) is covered in an openable and closable manner, and the suction hose (4) is detachable. The outer part is composed of a dust collector M (11) with a suction port (10) connected to the dust collector M (11). Then, the lower case (6), the H-marked case (
8) and the dust collection Fi (11) are chrome-plated at least on the surface to form holes W4<6a), (8a), and (Ha) on each surface to form the entire C. The outer surface of the main body case (5) has conductivity due to the claw 7 and plating treatment.

Further, (12) is a 7 yen working fan having a metal exterior case (12a), and the fan (12) is a surface cushioning member (13).
) and the rear shock absorber (14) to form the equipment storage chamber (7).
It is elastically held in the blower storage part (15) of.

Further, (16>) is a food reel wound with a power cord (17) that supplies commercial power to the electric blower (12),
Front) The blower storage section (15) is located in the own equipment storage room (7).
It is rotatably stored in a cord reel storage section (18) formed adjacent to the cord reel storage section (18).

(19> is an integrated handle C made of an elastic conductive member such as conductive rubber, and the bumper body (19) is attached to the opening edge (20) of the lower case (6). 2) By inserting the joining stopper (19a), the lower case (6) and upper case (8) of the main body case (5)
) and the dust collection lid (11), and is arranged in the front body case (5). Furthermore, (21) is a grounding connection piece integrally molded with the bumper body (19) of η11. ) to the stopper fitting (22
), the metal exterior of the electric blower @ (12) (
12a) with screws (23).

Static electricity generated in the vacuum cleaner body case (5) due to friction with the suction air flow containing dust due to the operation of the electric blower (12) is removed by the plating process.
Current is collected from the outer surface of the main body case (5), which has properties, to the bumper body (19) made of a conductive material, and the earthing connection piece (
21) to the electric blower (12), and from the electric blower (12) to the commercial power source side. That is, the stator in contact with the metal exterior case (12a) is wound with an insulator interposed therebetween, and there is extremely high resistance between this winding and the metal exterior case (12a). However, since the static electricity reaches tens of thousands of volts,
Static electricity is gradually grounded to the power supply side via this high resistance portion.

Therefore, even if the user touches the conductive vacuum cleaner main body case (5), he or she will not receive shocks such as electric shocks due to high-potential static electricity.

Furthermore, FIGS. 4 to 6 show other embodiments of the present invention.
In the figure, parts similar to those in the previous embodiment are given the same numbers.

<24) is a conventionally used bumper body made of an elastic member such as synthetic rubber.
By fitting a), it can be inserted between the lower case (6), the upper case (8) and the dust collection lid (11), and can be installed in the cleaner body case (5). Said upper case (8)
The plating layer (8a) on the outer surface and the plating layer (Ji<6a) on the outer surface of the lower case (6) are, for example, metal screws (not shown) for fitting the upper case (8) and the lower case (6). Therefore, the entire outer surface of the vacuum cleaner body case (5) is electrically conductive.

(25) is a plating layer (6) on the outer surface of the lower case (6).
A) is a ground wire member that grounds the electric blower (12), and has a high resistance (26) similar to IQM Q, and has a character 17 that is hooked to the opening edge (20) of the case 1 (6) at the end. Attach the other end of the main body case mounting bracket (27) to the metal exterior case (12a) of the electric blower (12).
Fixing bracket (29) that fixes screw 11 with screw (28)
). The main body case holding f1 metal fitting (27) is connected to the lower case <6> and the bumper body (24).
), and is attached in an electrically connected state to the plating layer (6a) on the outer surface of the lower case (6).

Therefore, the static electricity generated in the vacuum cleaner main body case (5) is transferred from the conductive outer surface of the lower case (6) to the high resistance (25) of the ground wire member (25). 26) It is grounded to the electric blower (12) via ≠-, and further grounded from the electric blower (12) to the commercial tttR side.

Therefore, the vacuum cleaner main body case (5) has electrical conductivity.
Even if you touch it with your hand, you will not receive shocks such as electric shock due to high-potential static electricity.

Further, since the ground wire member (25) has a high resistance (26), if the electric blower (12) fails, it may shut down and connect the metal exterior case (12a) to the commercial power supply.
Even if Tt pressure is applied, the commercial power supply voltage is not applied to the outer surface of the vacuum cleaner case (5) due to the presence of the high resistance (26), so even if the user touches it, there will be no electric shock and it is safe. .

(G) Effects of the Invention Since the present invention is constructed as described above, it has the following effects.

In the vacuum cleaner according to claim 1, static electricity is collected by the bumper body made of a conductive material and grounded to the electric blower via the grounding connection piece, so that static electricity can be efficiently discharged with a construction that is negligible. Even if the user touches the conductive vacuum cleaner case, the user will not be shocked by static electricity.
It has the effect of being highly safe.

In the vacuum cleaner according to claim 2, static electricity can be easily grounded from the conductive outer surface of the vacuum cleaner main body case to the electric blower via the ground wire member of the high resistance part. Even if the user touches the conductive case of the vacuum cleaner, the user will not be shocked by static electricity, and even if the electric blower malfunctions and shorts out, the presence of high resistance will prevent the user from using the main case. Since no power supply voltage is applied, there is no risk of electric shock, and this has the effect of being highly safe.

[Brief explanation of the drawing]

The drawings all relate to embodiments of the vacuum cleaner of the present invention; Fig. 1 is a plan view with the collector mW and the upper case removed, Fig. 2 is an overall front view in the cleaning state, and Fig. 3 is a schematic longitudinal section of the main parts. l in the figure]
Furthermore, Fig. 4 is a plan view of another embodiment with the dust collection lid and upper case removed, Fig. 5 is a schematic vertical sectional view of the second part, and Fig. 6 is a perspective view of the high-resistance ground wire member. be. (5)...Vacuum cleaner body case, (12>...Electric blower, (19)...H/P made of conductive material, (21)
)...Grounding connection piece, (24)...Bumper body,
(25)...Earth wire member 26)...High resistance.

Claims (2)

[Claims] (1) A vacuum cleaner main body case having an electrically conductive outer surface, an electric blower housed in the main body case, and a bumper body made of a conductive material disposed in the main body case, and the bumper body is made of a conductive material. A vacuum cleaner characterized by an integrally molded grounding connection piece that connects to an electric blower. (2) A vacuum cleaner body case with a conductive outer surface, an electric blower housed in the body case, a bumper body disposed in the body case, and one end between the bumper body and the body case. A vacuum cleaner comprising: a ground wire member with high resistance, the other end of which is connected to the electric blower.