JPH01285232A - Handheld cleaner - Google Patents

Abstract

PURPOSE:To make it possible to suck heavy dust while efficiently using electric power of a power source with small capacity by a method wherein a control device for the amount of electricity supplied to a motor is provided between the connections of the power source and the motor, and an operating part of the control device is provided on the side wall of main body case. CONSTITUTION:A control device 29 for the amount of electricity supplied to a motor 7 is provided between the connections of a power source 6 and the motor 7 and an operating part 26 of the control device 29 is provided on the side wall of an upper case 1a. When dust collector (brushes) 25 are contacted on a table and the like, and slid, the dust on the table is sucked from an inlet 20 and held into a dust compartment 23 after a main body case 1 is held by the hand and the motor 7 is started. On the other hand, when heavy dust such as crumbs of bread containing water exists on the table, the operating part 26 is pushed by a fingertip of the hand holding the main body case 1. A contact 27 is, as a result, closed and, since the control device 29 is short-circuited and the amount of electricity supplied to the motor 7 is increased, the rotating speed of a fan 9 is increased. The heavy dust is thus sucked by its strong suction force.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a hand-held cleaner, in which an operating member is operated by the fingertip of the hand holding the main body case while cleaning a table surface, etc. while holding the main body case. The suction power of the fan can be adjusted as needed by operating the fan.

(Prior art) This seed-carrying type cleaner mainly sucks in relatively light garbage such as bread crumbs and eraser scraps scattered on tables and desks, so it uses small-capacity dry batteries or dry batteries as a power source. Rechargeable batteries are commonly used. Additionally, in order to extend battery life and reduce noise at dining tables, study rooms, etc., there is a trend to reduce the amount of power supplied to the motor as much as possible and to lower the number of rotations of the suction fan.

(Problem to be Solved by the Invention) However, the garbage on tables and desks, etc. includes heavy items such as bread crumbs that contain moisture, so the conventional cleaners with low suction power described above are not sufficient to clean them. There was a problem that I couldn't do it. Possible countermeasures to this problem include, for example, increasing the capacity of the power supply unit and increasing the amount of power supplied to the motor, but this would increase the size and weight of the cleaner itself and shorten the battery life. This will result in the loss of its advantages.

Therefore, an object of the present invention is to provide a hand-held cleaner that can suck up heavy dirt while effectively using the power of a small-capacity power source.

(Means for Solving the Problems) For this purpose, the present invention includes a power supply section 6, a motor 7 driven by the power supply section 6, and a motor 7 driven by the motor 7 inside the main body case 1 which also serves as a grip section. This hand-held cleaner is equipped with a suction fan 9 that sucks dust from a suction part 20 disposed at the bottom of the main body case 1 and collects the dust in a dust collection chamber 23. A control means 29 for controlling the amount of power supplied to the motor 7 is provided between the connections of the motor 7, and an operating member 26 of the control means 29 is provided on the side wall of the main body case 1.

(Function) In the above configuration, when the main body case 1 is held in hand and the motor 7 is driven to slide it along a cleaning surface such as a table, the dust on the cleaning surface is absorbed from the suction part 20, and the dust collection The dust is collected in the chamber 23.

Further, if there is heavy waste such as bread crumbs containing moisture, the operating member 26 on the side wall surface of the main body case 1 is operated with the fingertips of the hand holding the main body case 1. Then, the control means 38 is controlled to increase the amount of power supplied to the motor 7, the rotational speed of the fan 9 increases, and its suction force increases, sucking in heavy dirt.

, (Example 1) Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view of the hand-held cleaner, and FIG. 2 is a cross-sectional view. Reference numeral 1 is a main case formed by removably connecting an upper case la and a lower case 1b, and a drive chamber 3 is separated by a partition plate 2. and fan room 4. This main case 1
It also serves as a grip, and its shape is cylindrical so that it is easy to hold in the hand. 5 is a bottom plate portion of the main body case 1.

6.6 is a small capacity power supply section such as a dry battery or rechargeable battery arranged in the drive chamber 3, 7 is a motor driven by the power supply section 6.6, and 8 is provided at the center of the upper surface of the main body case 1. In the main switch section, 9 is a suction fan driven by a motor 7 disposed in the fan chamber 4, and 10 is a part of a filter provided on the wall of the lower case 1b.

Reference numeral 20 denotes a cylindrical suction portion disposed at the center of the bottom of the main body case l, and this suction portion 20 is formed on the bottom plate portion 5. 22 is a partition plate detachably fitted to the upper part of the suction part 20, and the dust collection chamber 2 is separated between the partition plate 22 and the bottom plate part 5.
3 is formed. Reference numeral 24 denotes a notch through which the dust sucked by the fan 9 flows into the dust collection chamber 23. 25
A dust collector is attached to the lower surface of the bottom plate portion 5, and is made of an elastic material such as a brush or a rubber lip, and is arranged radially from the suction portion 20.

Reference numeral 26 indicates an operating member consisting of a push switch disposed on the side wall of the upper case 1a, and 27 indicates a contact section provided on the back surface thereof. FIG. 3 shows the electric circuit, 6
．． 7.8 is the power supply section, motor, and main switch section. Reference numeral 29 denotes power feeding amount control means provided between the power source section 6 and the motor 7, and is comprised of a parallel circuit of the contact section 27 and a current control element 28 consisting of a diode.

This hand-held cleaner has the above-mentioned configuration, and the main body case 1 is held in the hand and the motor 7 is driven to drive the dust collector 2.
5 is grounded on a table or the like and slid, the dust on the table is absorbed from the suction section 20 and collected in the dust collection chamber 23.

If there is heavy garbage such as bread crumbs containing fragrant moisture, press the operating member 26 with the fingertip of the hand holding the main body case 1.
Press. Then, the contact portion 27 closes and the control means 29
is short-circuited, the amount of power supplied to the motor 7 increases, the fan 9 increases its rotational speed, and its strong suction force sucks in dust with am.

(Embodiment 2) In FIG. 4, numeral 31 is a main switch section provided on the top surface of the main body case 30, and 32 is an operating member consisting of a sliding switch section provided on a side wall. FIG. 5 shows an electric circuit, in which a power supply amount control means 33 is controlled by a switch section 32 on the base side of a transistor 34. In FIG. It is configured by connecting a current control section 35. Therefore, with this device, the motor 7 can be operated by sliding the operating member 32 with the hand holding the main body case 30.
By controlling the amount of power supplied to the fan 9, the rotation speed of the fan 9 can be continuously variable.

(Third Embodiment) In the case shown in FIG. 6, a cylindrical operating member 40 is attached to the outer peripheral surface of the upper case 1a of the first embodiment. This operating member 40 is attached to the upper case 1a via a spring material 41 so as to be able to move up and down, and is held against the spring force of the spring material 41 while cleaning the table surface etc. By pressing down, the tapered portion a of the inner surface presses the switch portion 26 (see line U4 in the partially enlarged diagram), thereby closing the contact portion 27.

(Effects of the Invention) As explained above, the present invention provides this seed potato holder type cleaner with a control means 29 for controlling the amount of power supplied to the motor 7 between the power supply section 6 and the motor 7, and Since the operation member 26 is provided on the side wall of the main body case 1 which also serves as a grip, the main body case 1 can be held for normal cleaning of light weight garbage, and if there is heavy garbage, the main body case 1 can be held. By operating the holding member 26 with the fingertip of the user's hand, the suction force of the fan 9 can be increased to suck in this heavy dust.

In addition, by increasing the amount of power supplied to the motor 7 only when it is necessary in this way, the power of the power supply section 6 can be used to the minimum necessary without wasting it, so that the life of the power supply section 6 can be extended. be able to.

[Brief explanation of the drawing]

The figures show embodiments of the present invention, in which Fig. 1 is a perspective view of a hand-held cleaner, Fig. 2 is a sectional view, Fig. 3 is an electric circuit diagram, and Fig. 4 is a perspective view of another embodiment. 5 is an electric circuit diagram, and FIG. 6 is a sectional view of still another embodiment. 1.30 Main body case 6 Power supply section 7 Motor 9 Suction fan 20 Suction section 23 Dust collection chamber 26.32.40 Operation member 29 .33...Power supply amount control means Applicant: Kyushu Hitachi Maxell Co., Ltd. Agent Patent attorney: Toshi Takamatsu Figure 1, Figure 2

Claims (1)

[Claims] A power supply section 6, a motor 7 driven by the power supply section 6, and a suction fan 9 driven by the motor 7 are provided inside the main body case 1, which also serves as a grip part. In a hand-held cleaner that sucks in dust from a disposed suction part 20 and collects dust in a dust collection chamber 23,
A control means 29 for controlling the amount of power supplied to the motor 7 is provided between the power supply section 6 and the motor 7, and an operating member 26 of the control means 29 is provided on the side wall of the main body case 1. Handheld cleaner.