JPH01221131A - Charge type cleaner - Google Patents

Abstract

PURPOSE:To prevent inferior contact with terminals in a motor sucker while eliminating the risk of short-circuit between terminals so as to enhance the safety by establishing electrical connection of the motor sucker with the use of sucking port terminals provided on a recessed surface in the outer periphery of an opening in a sucking port, and connection terminals on the motor sucker side. CONSTITUTION:Body terminals 30 are connected to a battery 4 through a terminal bed 8, and is removably connected to dust collecting box terminal 31 in a dust collecting box 2, and suction port terminals 32 are connected to the dust collecting box terminals 31 and are arranged on inclined surfaces 2a formed on the outer periphery of the opening of a suction port 13 in the dust collecting box 2 and extending rearward from both ends of the opening. The vacuum cleaner is used for cleaning a floor, a rush-mat or the like by removing the motor sucker 3. Since the positions of the suction port terminals 32 are on the inclined surfaces 2a extending rearward from both ends of the opening of the suction port 13, dust never enters into the suction port terminal 32. Further, when the cleaner is used with the motor sucker 3 being fitted, there is no possibility of inferior contact between the suction port terminals 32 and the connection terminal 33. A pair of suction terminals 32 are not made in proximity with each other, and accordingly, no short-circuit occurs between the terminals so as to obtain a high safety. Further, since both end parts of the opening of the suction port 13 are formed as the inclined surfaces 2a, it is possible to prevent dust from being blocked, and to suck dust laterally.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a rechargeable vacuum cleaner having an electric suction tool that is detachably attached to a suction port.

2. Description of the Related Art An example of a rechargeable vacuum cleaner having a conventional electric suction device is shown in the 14th example.
This will be explained according to FIGS.

51 is an electric blower 62, a Nuwitch 63, and a battery 64 at the rear.
67 is a dust collector which is detachably attached to the dust collector 56 and has a connection port 68 that opens at the tip and projects inward. It is a box lid. 69 is an electric motor 60. It is an electric suction tool having a rotating brush 61 driven by an electric motor 6o, and is detachably attached to a connection port 68 by the suction vibro 1. Reference numeral 62 denotes a main body terminal provided at the lower part of the dust collecting section 66, which is connected to the battery 64 and detachably connected to a suction port terminal 63 provided on the front wall of the dust collecting box lid 57 having a connection port 68. . Further, the electric suction tool 69 is provided with a connection terminal 64 that is connected to the electric motor 6o and detachably connected to the suction port terminal 63.

When cleaning, an electric suction tool 69 or a gap suction port (not shown) is used.

Problems that the invention aims to solve The conventional configuration described above has two drawbacks.

(1) When cleaning carpets that are difficult to remove lint, etc., the electric suction tool 59 is attached and used, but when cleaning 2 tatami floors, etc., the rotating brush blows away the dust, so a separate suction tool is required. is necessary.

(2) Although it is not easy to use when cleaning a 2 tatami mat floor, etc., when the electric suction tool 69 is removed and the connection port 58 is used as a suction port, the suction port terminal 63 is on the opening surface of the connection port 68, so dust is sucked in. It is easy to get into the mouth terminal 63, and then the electric suction tool 5e
When using the electric suction tool 69, it may cause poor contact between the connection terminals 64 of the electric suction tool 69.

Means for Solving the Problems The present invention solves the above-mentioned conventional drawbacks by disposing the electrical connection between the suction port of the dust collection box and the electric suction tool on the depressed surface of the outer periphery of the opening of the suction port. This is done using the suction port terminal and the connection terminal on the electric suction tool side.

By taking the above measures, the suction port terminal is not on the same plane as the opening surface of the suction port, so even if the electric suction tool is removed and used, dust will not enter the suction port terminal, and the next When using an electric suction device, there will be no contact failure between the connection terminals of the electric suction device. Reliability against poor contact between the tab terminals and ease of use are improved as it can be used even if the electric suction tool is removed. In addition, by arranging the suction port terminals on both end surfaces of the outer periphery of the suction port opening, a pair of suction port terminals are not close to each other, so there is no risk of the user accidentally shorting the terminals, improving safety. It provides an expensive rechargeable vacuum cleaner.

EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 to 13. As schematically shown in FIGS. 1 to 6, the rechargeable vacuum cleaner of the present invention is comprised of a main body 1, a dust collection box 2, an electric suction tool 3, and a charging stand 4, each of which is detachably connected.

Next, to explain the individual details, the main body 1 includes an electric blower 6,
It contains a switch 6, a secondary battery 7, a terminal block 8, an input switching resistor 9, a fuse 10° 11 according to the input, a charging control circuit 12, etc. The dust collection box 2 has a suction port 13 that opens at the tip and projects inward, has a filter 14 installed therein, and is removably attached to the main body 1 with a buckle 16. Furthermore, two lint catchers 16 and 17 are disposed adjacent to each other at the lower end of the suction port 13, with the tilting directions of the bristles facing each other and whose ends are narrower than those at the rear. The electric suction tool 3 includes a suction cover 18, a suction case 19,
A rotary brush 22 driven by an electric motor 21 via a bell) 20 and a return type protector 23 for protecting the electric motor 21 are built in, and the suction pipe 24 formed in the suction cover 18 can be freely attached to and detached from the suction port 13. It will be installed. 25 and 26 are pulleys fixed to the electric motor 21 and the rotating brush 22, respectively, and 27 and 28 are bearings that support the rotating brush 22.

The rotating brush 22 is twisted in multiple directions so that when it rotates, dust moves in the opposite direction of the brush 20. Also, the end of the oppositely rotating brush 22 of the bell) 20 is
The diameter of the center diameter is increased, and the outer circumference of the end face is
The felt 29 is inserted into the gap below the table, and the inner surface is fixed with a felt 29 that comes into contact with the bearing 27. With this configuration, the thread waste wrapped around the rotating brush 22 enters the bearing 27.
<I'm here.

Next, to explain the electrical connection, the main body terminal provided on the front part of the 3-way main body 1 is connected to the battery 4 via the terminal block 8,
It is also detachably connected to the dust collection box terminal 31 of the dust collection box 2. 32 is connected to the dust collection box terminal 31 and is connected to the suction port 13 of the dust collection box 2.
0 are suction port terminals arranged at both ends. Here, Figure 6~
As shown in FIG. 7, the dust collection box terminal 31 and the suction port terminal 32 are wired and fixed to the wiring cover 33 with lead wires and arranged in the dust collection box 2. The suction port terminal 32 is located at the tip of the dust collection box 2, on an inclined surface 2a formed from both ends of the opening of the suction port 13 to the rear of the outer periphery.
It is located in The electric suction tool 3 has an abbreviated connecting terminal 33 connected to the electric motor 21 and detachably connected to the suction port terminal 32 at both ends of the suction pipe 24 between the suction cover 18 and the suction case 19. Fixed and placed.

Here, the present invention will be described in detail. In the case of carpet cleaning where it is difficult to remove lint etc., the electric suction tool 3 is attached and used.
When cleaning a 1 tatami mat floor etc., the electric suction tool 3 is used with the electric suction tool 3 removed since the dust is blown away by the rotating brush 22. When the electric suction device 3 is used with the electric suction device 3 removed, the suction port terminal 32 is located so that both ends of the opening of the suction port 13 are inclined backwards to the surface 2a, as shown in FIG. 32, and when the electric suction tool 3 is attached and used next time, there will be no contact failure between the suction port terminal 32 and the connection terminal 33. Furthermore, since the pair of suction port terminals 32 are not close to each other at both ends of the opening of the suction port 13, there is no risk of the user accidentally shorting the terminals, resulting in high safety.

Furthermore, since both ends of the opening of the suction port 13 are sloped surfaces 2a toward the rear, dust is sucked in from the sides without being picked up, resulting in a sweeping cleaning effect.

Furthermore, the two lint traps 16 and 17 provided at the tip of the dust collection box 2 and the bottom tip of the suction port 13 are used when the electric suction tool 3 is removed. The rear lint catcher 17 catches lint when the vacuum cleaner is pushed forward against the surface to be cleaned, such as a carpet, and the lint is separated from the rear lint catcher 17 and collected by the front catcher 16 when pulled back. will be captured.

If the front lint catcher 16 is not provided, the lint separated from the rear lint catcher 17 will not be sucked through the suction port 13 and will remain at the front when the vacuum cleaner is operated at a high speed.

To prevent this, a front lint catcher 16 is provided, and by repeatedly moving the vacuum cleaner back and forth, lint is caught between the front lint catcher 16 and the rear lint catcher 17. and is drawn through the suction port 13. The width of the front lint trap 16 is narrowed so that the trapped lint can be quickly sucked into the suction port 13.

Next, to specifically explain the structure surrounding the terminal block 8, the first
As shown in FIGS. 0 to 13, battery connection terminals 34 and 35, fixed connection terminals 36, and charging terminals 37 are fixed to the terminal block 8, respectively. The battery connection terminal 34 is shared with one of the charging terminals, and the fixed connection terminal 36 forms a contact point.

When using the main body with this configuration, the contact part is closed and kept in the ON state. When charging the main body by placing it on a charging stand, the charging terminal 38 of the charging stand 4 pushes up the battery connection terminal 34 and the contact part is closed. Since charging is performed with the device open, even if the main unit is charged while the switch is on, no current flows to the electric blower, so an overcurrent flows to the charging stand and transformer 3
9 will not be disconnected, and charging can be performed safely and reliably.

Effects of the Invention As described above, the present invention provides a rechargeable vacuum cleaner that has a simple configuration, is easy to use, and is highly reliable and safe.

[Brief explanation of the drawing]

Fig. 1a is a sectional view of a rechargeable vacuum cleaner showing an embodiment of the present invention, Fig. 1 is a sectional view of part A, Fig. 2 is an overall exploded perspective view,
Fig. 3 is a perspective view, Fig. 4 is a perspective view with the electric suction device attached, Fig. 6 is a perspective view of the same separated, Fig. 6 is a perspective view of the suction section, and Fig. 7 is a perspective view of the electric suction device. A perspective view of the dust collection box and wiring cover, Fig. 8 is a cross-sectional view of the main parts, Fig. 9 is a cross-sectional view of the electric suction tool, Fig. 1Q is an exploded perspective view of the battery and its connections, Figs. Figure 12 is the cross-sectional view, Figure 13 is the circuit diagram, and Figure 1
FIG. 4 is a sectional view showing a conventional example, and FIG. 16 is a perspective view. 1... Body, 2... Dust collection box, 3...
...Electric suction tool, 6...Electric blower, 13.
...Suction port, 21...Electric motor, 22...
... Rotating brush, 32 ... Suction port terminal, 3
3... Connection terminal. Name of agent: Patent attorney Toshio Nakao and 1 other person 2nd
Figure 3 Figure 1 - Main body JR - Poems 6 Figure 13 - Sucking day Q - To 2 - Waji box 3 - Skin 11 collection, both 2zu 1 - 1 recommendation] - Shi, No. 8 Figure 22-m
-Rotating brush 32-U, l Ken N-Rotate 1b1- 33--One-way J island Figure 9 Figure 10 Figure 13

Claims (1)

[Claims] It consists of a main body with a built-in electric blower, etc., a dust collection box with a suction port at the tip, and an electric suction tool that has an electric motor and a rotating brush and is detachably attached to the suction port. A rechargeable vacuum cleaner, wherein the suction port and the electric suction tool are each provided with a suction port terminal and a connection terminal for electrical connection, and the suction port terminal is disposed on an opposing surface that is lower than the end of the suction port.